plastin-1 isoform X1 [Homo sapiens]
Protein Classification
List of domain hits
| Name | Accession | Description | Interval | E-value | |||||||||
| CH_PLS1_rpt1 | cd21323 | first calponin homology (CH) domain found in plastin-1; Plastin-1, also called ... |
100-244 | 3.97e-109 | |||||||||
first calponin homology (CH) domain found in plastin-1; Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. It contains four copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. : Pssm-ID: 409172 Cd Length: 145 Bit Score: 324.69 E-value: 3.97e-109
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| CH_PLS1_rpt3 | cd21329 | third calponin homology (CH) domain found in plastin-1; Plastin-1, also called ... |
391-508 | 1.35e-86 | |||||||||
third calponin homology (CH) domain found in plastin-1; Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. It contains four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. : Pssm-ID: 409178 Cd Length: 118 Bit Score: 265.31 E-value: 1.35e-86
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| SAC6 super family | cl26648 | Ca2+-binding actin-bundling protein fimbrin/plastin (EF-Hand superfamily) [Cytoskeleton]; |
13-621 | 8.51e-81 | |||||||||
Ca2+-binding actin-bundling protein fimbrin/plastin (EF-Hand superfamily) [Cytoskeleton]; The actual alignment was detected with superfamily member COG5069: Pssm-ID: 227401 [Multi-domain] Cd Length: 612 Bit Score: 267.19 E-value: 8.51e-81
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| Name | Accession | Description | Interval | E-value | |||||||||
| CH_PLS1_rpt1 | cd21323 | first calponin homology (CH) domain found in plastin-1; Plastin-1, also called ... |
100-244 | 3.97e-109 | |||||||||
first calponin homology (CH) domain found in plastin-1; Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. It contains four copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409172 Cd Length: 145 Bit Score: 324.69 E-value: 3.97e-109
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| CH_PLS1_rpt3 | cd21329 | third calponin homology (CH) domain found in plastin-1; Plastin-1, also called ... |
391-508 | 1.35e-86 | |||||||||
third calponin homology (CH) domain found in plastin-1; Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. It contains four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409178 Cd Length: 118 Bit Score: 265.31 E-value: 1.35e-86
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| SAC6 | COG5069 | Ca2+-binding actin-bundling protein fimbrin/plastin (EF-Hand superfamily) [Cytoskeleton]; |
13-621 | 8.51e-81 | |||||||||
Ca2+-binding actin-bundling protein fimbrin/plastin (EF-Hand superfamily) [Cytoskeleton]; Pssm-ID: 227401 [Multi-domain] Cd Length: 612 Bit Score: 267.19 E-value: 8.51e-81
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| CH_PLS1_rpt4 | cd21332 | fourth calponin homology (CH) domain found in plastin-1; Plastin-1, also called ... |
510-624 | 1.57e-76 | |||||||||
fourth calponin homology (CH) domain found in plastin-1; Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. It contains four copies of the CH domain. This model corresponds to the fourth CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409181 Cd Length: 115 Bit Score: 239.08 E-value: 1.57e-76
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| CH | pfam00307 | Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal ... |
122-237 | 1.18e-23 | |||||||||
Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal transduction proteins. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin have only a single copy. Pssm-ID: 425596 [Multi-domain] Cd Length: 109 Bit Score: 95.82 E-value: 1.18e-23
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| CH | pfam00307 | Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal ... |
267-376 | 1.30e-21 | |||||||||
Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal transduction proteins. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin have only a single copy. Pssm-ID: 425596 [Multi-domain] Cd Length: 109 Bit Score: 90.04 E-value: 1.30e-21
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| CH | smart00033 | Calponin homology domain; Actin binding domains present in duplicate at the N-termini of ... |
127-234 | 3.17e-20 | |||||||||
Calponin homology domain; Actin binding domains present in duplicate at the N-termini of spectrin-like proteins (including dystrophin, alpha-actinin). These domains cross-link actin filaments into bundles and networks. A calponin homology domain is predicted in yeasst Cdc24p. Pssm-ID: 214479 [Multi-domain] Cd Length: 101 Bit Score: 85.83 E-value: 3.17e-20
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| CH | pfam00307 | Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal ... |
397-503 | 2.29e-17 | |||||||||
Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal transduction proteins. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin have only a single copy. Pssm-ID: 425596 [Multi-domain] Cd Length: 109 Bit Score: 78.10 E-value: 2.29e-17
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| CH | smart00033 | Calponin homology domain; Actin binding domains present in duplicate at the N-termini of ... |
399-502 | 4.65e-15 | |||||||||
Calponin homology domain; Actin binding domains present in duplicate at the N-termini of spectrin-like proteins (including dystrophin, alpha-actinin). These domains cross-link actin filaments into bundles and networks. A calponin homology domain is predicted in yeasst Cdc24p. Pssm-ID: 214479 [Multi-domain] Cd Length: 101 Bit Score: 71.19 E-value: 4.65e-15
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| CH | smart00033 | Calponin homology domain; Actin binding domains present in duplicate at the N-termini of ... |
270-372 | 5.33e-15 | |||||||||
Calponin homology domain; Actin binding domains present in duplicate at the N-termini of spectrin-like proteins (including dystrophin, alpha-actinin). These domains cross-link actin filaments into bundles and networks. A calponin homology domain is predicted in yeasst Cdc24p. Pssm-ID: 214479 [Multi-domain] Cd Length: 101 Bit Score: 70.81 E-value: 5.33e-15
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| SAC6 | COG5069 | Ca2+-binding actin-bundling protein fimbrin/plastin (EF-Hand superfamily) [Cytoskeleton]; |
388-595 | 1.43e-06 | |||||||||
Ca2+-binding actin-bundling protein fimbrin/plastin (EF-Hand superfamily) [Cytoskeleton]; Pssm-ID: 227401 [Multi-domain] Cd Length: 612 Bit Score: 51.48 E-value: 1.43e-06
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| PTZ00184 | PTZ00184 | calmodulin; Provisional |
14-80 | 3.96e-06 | |||||||||
calmodulin; Provisional Pssm-ID: 185504 [Multi-domain] Cd Length: 149 Bit Score: 47.06 E-value: 3.96e-06
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| Name | Accession | Description | Interval | E-value | |||||||||
| CH_PLS1_rpt1 | cd21323 | first calponin homology (CH) domain found in plastin-1; Plastin-1, also called ... |
100-244 | 3.97e-109 | |||||||||
first calponin homology (CH) domain found in plastin-1; Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. It contains four copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409172 Cd Length: 145 Bit Score: 324.69 E-value: 3.97e-109
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| CH_PLS_rpt1 | cd21292 | first calponin homology (CH) domain found in the plastin family; The plastin family includes ... |
100-244 | 2.25e-101 | |||||||||
first calponin homology (CH) domain found in the plastin family; The plastin family includes plastin-1, -2, and -3, which are all actin-bundling proteins. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, LC64P, or lymphocyte cytosolic protein 1 (LCP-1), plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Members of this family contain four copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409141 Cd Length: 145 Bit Score: 304.59 E-value: 2.25e-101
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| CH_PLS1_rpt3 | cd21329 | third calponin homology (CH) domain found in plastin-1; Plastin-1, also called ... |
391-508 | 1.35e-86 | |||||||||
third calponin homology (CH) domain found in plastin-1; Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. It contains four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409178 Cd Length: 118 Bit Score: 265.31 E-value: 1.35e-86
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| CH_PLS3_rpt1 | cd21325 | first calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is ... |
100-247 | 1.26e-85 | |||||||||
first calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Plastin- 3 contains four copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409174 Cd Length: 148 Bit Score: 264.23 E-value: 1.26e-85
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| CH_PLS3_rpt3 | cd21331 | third calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is ... |
375-508 | 3.45e-84 | |||||||||
third calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Plastin-3 contains four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409180 Cd Length: 134 Bit Score: 259.93 E-value: 3.45e-84
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| CH_PLS2_rpt1 | cd21324 | first calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or ... |
100-244 | 4.87e-81 | |||||||||
first calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-2 contains four copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409173 Cd Length: 145 Bit Score: 252.24 E-value: 4.87e-81
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| SAC6 | COG5069 | Ca2+-binding actin-bundling protein fimbrin/plastin (EF-Hand superfamily) [Cytoskeleton]; |
13-621 | 8.51e-81 | |||||||||
Ca2+-binding actin-bundling protein fimbrin/plastin (EF-Hand superfamily) [Cytoskeleton]; Pssm-ID: 227401 [Multi-domain] Cd Length: 612 Bit Score: 267.19 E-value: 8.51e-81
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| CH_PLS1_rpt4 | cd21332 | fourth calponin homology (CH) domain found in plastin-1; Plastin-1, also called ... |
510-624 | 1.57e-76 | |||||||||
fourth calponin homology (CH) domain found in plastin-1; Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. It contains four copies of the CH domain. This model corresponds to the fourth CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409181 Cd Length: 115 Bit Score: 239.08 E-value: 1.57e-76
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| CH_PLS2_rpt3 | cd21330 | third calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or ... |
385-508 | 1.15e-75 | |||||||||
third calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-2 contains four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409179 Cd Length: 125 Bit Score: 237.20 E-value: 1.15e-75
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| CH_PLS_rpt3 | cd21298 | third calponin homology (CH) domain found in the plastin family; The plastin family includes ... |
391-508 | 2.32e-73 | |||||||||
third calponin homology (CH) domain found in the plastin family; The plastin family includes plastin-1, -2, and -3. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Members of this family contain four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409147 Cd Length: 117 Bit Score: 230.97 E-value: 2.32e-73
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| CH_PLS1_rpt2 | cd21326 | second calponin homology (CH) domain found in plastin-1; Plastin-1, also called ... |
267-376 | 5.96e-72 | |||||||||
second calponin homology (CH) domain found in plastin-1; Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. It contains four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409175 Cd Length: 121 Bit Score: 227.46 E-value: 5.96e-72
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| CH_PLS2_rpt4 | cd21333 | fourth calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or ... |
512-625 | 3.95e-64 | |||||||||
fourth calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-2 contains four copies of the CH domain. This model corresponds to the fourth CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409182 Cd Length: 115 Bit Score: 206.76 E-value: 3.95e-64
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| CH_PLS3_rpt2 | cd21328 | second calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is ... |
267-373 | 1.70e-61 | |||||||||
second calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Plastin-3 contains four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409177 [Multi-domain] Cd Length: 122 Bit Score: 200.19 E-value: 1.70e-61
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| CH_PLS3_rpt4 | cd21334 | fourth calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is ... |
517-628 | 1.01e-59 | |||||||||
fourth calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Plastin-3 contains four copies of the CH domain. This model corresponds to the fourth CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409183 Cd Length: 112 Bit Score: 195.11 E-value: 1.01e-59
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| CH_PLS_rpt2 | cd21295 | second calponin homology (CH) domain found in the family of plastin; The plastin family ... |
267-373 | 2.49e-59 | |||||||||
second calponin homology (CH) domain found in the family of plastin; The plastin family includes plastin-1, -2, and -3. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Members of this family contain four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409144 Cd Length: 113 Bit Score: 194.03 E-value: 2.49e-59
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| CH_PLS2_rpt2 | cd21327 | second calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or ... |
267-376 | 4.11e-59 | |||||||||
second calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-2 contaisn four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409176 Cd Length: 125 Bit Score: 194.02 E-value: 4.11e-59
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| CH_PLS_rpt4 | cd21301 | fourth calponin homology (CH) domain found in the plastin family; The plastin family includes ... |
517-624 | 7.63e-58 | |||||||||
fourth calponin homology (CH) domain found in the plastin family; The plastin family includes plastin-1, -2, and -3. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Members of this family contain four copies of the CH domain. This model corresponds to the fourth CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409150 Cd Length: 107 Bit Score: 189.80 E-value: 7.63e-58
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| CH_PLS_FIM_rpt1 | cd21217 | first calponin homology (CH) domain found in the plastin/fimbrin family; This family includes ... |
123-235 | 1.16e-51 | |||||||||
first calponin homology (CH) domain found in the plastin/fimbrin family; This family includes plastin and fimbrin. Plastin has three isoforms, plastin-1, -2, and -3, which are all actin-bundling proteins. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, LC64P, or lymphocyte cytosolic protein 1 (LCP-1), plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Fimbrin has been found in plants and fungi. Arabidopsis thaliana fimbrin (AtFIM) includes fimbrin-1, -2, -3, -4, and -5; they cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, probably involved in cell cycle, cell division, cell elongation and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Fungal fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409066 [Multi-domain] Cd Length: 114 Bit Score: 173.53 E-value: 1.16e-51
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| CH_PLS_FIM_rpt3 | cd21219 | third calponin homology (CH) domain found in the plastin/fimbrin family; This family includes ... |
393-508 | 2.72e-51 | |||||||||
third calponin homology (CH) domain found in the plastin/fimbrin family; This family includes plastin and fimbrin. Plastin has three isoforms, plastin-1, -2, and -3. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Fimbrin has been found in plants and fungi. Arabidopsis thaliana fimbrin (AtFIM) includes fimbrin-1, -2, -3, -4, and -5, which cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, probably involved in cell cycle, cell division, cell elongation and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Fungal fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409068 Cd Length: 113 Bit Score: 172.47 E-value: 2.72e-51
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| CH_PLS_FIM_rpt4 | cd21220 | fourth calponin homology (CH) domain found in the plastin/fimbrin family; This family includes ... |
517-621 | 2.24e-43 | |||||||||
fourth calponin homology (CH) domain found in the plastin/fimbrin family; This family includes plastin and fimbrin. Plastin has three isoforms, plastin-1, -2, and -3. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Fimbrin has been found in plants and fungi. Arabidopsis thaliana fimbrin (AtFIM) includes fimbrin-1, -2, -3, -4, and -5, which cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, probably involved in cell cycle, cell division, cell elongation and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Fungal fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the fourth CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409069 Cd Length: 105 Bit Score: 150.88 E-value: 2.24e-43
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| CH_FIMB_rpt3 | cd21300 | third calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar ... |
391-508 | 6.60e-43 | |||||||||
third calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar proteins; Fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409149 Cd Length: 119 Bit Score: 150.27 E-value: 6.60e-43
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| CH_AtFIM_like_rpt1 | cd21293 | first calponin homology (CH) domain found in the Arabidopsis thaliana fimbrin family; The ... |
124-236 | 1.85e-42 | |||||||||
first calponin homology (CH) domain found in the Arabidopsis thaliana fimbrin family; The Arabidopsis thaliana fimbrin (AtFIM) family includes fimbrin-1, -2, -3, -4, and -5, which cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, and are probably involved in the cell cycle, cell division, cell elongation, and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Members of this family contain four copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409142 Cd Length: 116 Bit Score: 148.83 E-value: 1.85e-42
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| CH_FIMB_rpt1 | cd21294 | first calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar ... |
118-237 | 2.96e-42 | |||||||||
first calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar proteins; Fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409143 Cd Length: 125 Bit Score: 148.36 E-value: 2.96e-42
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| CH_PLS_FIM_rpt2 | cd21218 | second calponin homology (CH) domain found in the plastin/fimbrin family; This family includes ... |
267-373 | 3.03e-38 | |||||||||
second calponin homology (CH) domain found in the plastin/fimbrin family; This family includes plastin and fimbrin. Plastin has three isoforms, plastin-1, -2, and -3, which are all actin-bundling proteins. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, LC64P, or lymphocyte cytosolic protein 1 (LCP-1), plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Fimbrin has been found in plants and fungi. Arabidopsis thaliana fimbrin (AtFIM) includes fimbrin-1, -2, -3, -4, and -5; they cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, probably involved in cell cycle, cell division, cell elongation and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Fungal fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409067 Cd Length: 114 Bit Score: 137.04 E-value: 3.03e-38
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| CH_FIMB_rpt2 | cd21297 | second calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar ... |
268-373 | 2.41e-35 | |||||||||
second calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar proteins; Fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409146 Cd Length: 109 Bit Score: 128.83 E-value: 2.41e-35
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| CH_AtFIM_like_rpt3 | cd21299 | third calponin homology (CH) domain found in the Arabidopsis thaliana fimbrin family; The ... |
393-509 | 2.16e-33 | |||||||||
third calponin homology (CH) domain found in the Arabidopsis thaliana fimbrin family; The Arabidopsis thaliana fimbrin (AtFIM) family includes Fimbrin-1, -2, -3, -4, and -5, which cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, probably involved in cell cycle, cell division, cell elongation and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Members of this family contain four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409148 Cd Length: 114 Bit Score: 123.77 E-value: 2.16e-33
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| CH_AtFIM_like_rpt2 | cd21296 | second calponin homology (CH) domain found in the Arabidopsis thaliana fimbrin family; The ... |
268-372 | 6.81e-29 | |||||||||
second calponin homology (CH) domain found in the Arabidopsis thaliana fimbrin family; The Arabidopsis thaliana fimbrin (AtFIM) family includes fimbrin-1, -2, -3, -4, and -5, which cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, and are probably involved in the cell cycle, cell division, cell elongation, and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Members of this family contain four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409145 Cd Length: 109 Bit Score: 110.69 E-value: 6.81e-29
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| CH_FIMB_rpt4 | cd21303 | fourth calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar ... |
514-621 | 1.53e-28 | |||||||||
fourth calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar proteins; Fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the fourth CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409152 Cd Length: 108 Bit Score: 109.82 E-value: 1.53e-28
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| CH_AtFIM_like_rpt4 | cd21302 | fourth calponin homology (CH) domain found in the Arabidopsis thaliana fimbrin family; The ... |
517-621 | 1.09e-24 | |||||||||
fourth calponin homology (CH) domain found in the Arabidopsis thaliana fimbrin family; The Arabidopsis thaliana fimbrin (AtFIM) family includes fimbrin-1, -2, -3, -4, and -5, which cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, probably involved in cell cycle, cell division, cell elongation and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Members of this family contain four copies of the CH domain. This model corresponds to the fourth CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409151 Cd Length: 109 Bit Score: 98.78 E-value: 1.09e-24
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| CH | pfam00307 | Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal ... |
122-237 | 1.18e-23 | |||||||||
Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal transduction proteins. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin have only a single copy. Pssm-ID: 425596 [Multi-domain] Cd Length: 109 Bit Score: 95.82 E-value: 1.18e-23
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| CH | pfam00307 | Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal ... |
267-376 | 1.30e-21 | |||||||||
Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal transduction proteins. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin have only a single copy. Pssm-ID: 425596 [Multi-domain] Cd Length: 109 Bit Score: 90.04 E-value: 1.30e-21
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| CH | smart00033 | Calponin homology domain; Actin binding domains present in duplicate at the N-termini of ... |
127-234 | 3.17e-20 | |||||||||
Calponin homology domain; Actin binding domains present in duplicate at the N-termini of spectrin-like proteins (including dystrophin, alpha-actinin). These domains cross-link actin filaments into bundles and networks. A calponin homology domain is predicted in yeasst Cdc24p. Pssm-ID: 214479 [Multi-domain] Cd Length: 101 Bit Score: 85.83 E-value: 3.17e-20
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| CH | pfam00307 | Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal ... |
519-624 | 9.46e-18 | |||||||||
Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal transduction proteins. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin have only a single copy. Pssm-ID: 425596 [Multi-domain] Cd Length: 109 Bit Score: 79.25 E-value: 9.46e-18
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| CH | pfam00307 | Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal ... |
397-503 | 2.29e-17 | |||||||||
Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal transduction proteins. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin have only a single copy. Pssm-ID: 425596 [Multi-domain] Cd Length: 109 Bit Score: 78.10 E-value: 2.29e-17
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| CH_SF | cd00014 | calponin homology (CH) domain superfamily; CH domains are actin filament (F-actin) binding ... |
127-235 | 1.28e-16 | |||||||||
calponin homology (CH) domain superfamily; CH domains are actin filament (F-actin) binding motifs, which may be present as a single copy or in tandem repeats (which increase binding affinity). They either function as autonomous actin binding motifs or serve a regulatory function. CH domains are found in cytoskeletal and signal transduction proteins, including actin-binding proteins like spectrin, alpha-actinin, dystrophin, utrophin, and fimbrin, as well as proteins essential for regulation of cell shape (cortexillins), and signaling proteins (Vav). Pssm-ID: 409031 [Multi-domain] Cd Length: 103 Bit Score: 75.84 E-value: 1.28e-16
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| EFh | cd00051 | EF-hand, calcium binding motif; A diverse superfamily of calcium sensors and calcium signal ... |
15-81 | 6.35e-16 | |||||||||
EF-hand, calcium binding motif; A diverse superfamily of calcium sensors and calcium signal modulators; most examples in this alignment model have 2 active canonical EF hands. Ca2+ binding induces a conformational change in the EF-hand motif, leading to the activation or inactivation of target proteins. EF-hands tend to occur in pairs or higher copy numbers. Pssm-ID: 238008 [Multi-domain] Cd Length: 63 Bit Score: 72.20 E-value: 6.35e-16
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| CH | smart00033 | Calponin homology domain; Actin binding domains present in duplicate at the N-termini of ... |
399-502 | 4.65e-15 | |||||||||
Calponin homology domain; Actin binding domains present in duplicate at the N-termini of spectrin-like proteins (including dystrophin, alpha-actinin). These domains cross-link actin filaments into bundles and networks. A calponin homology domain is predicted in yeasst Cdc24p. Pssm-ID: 214479 [Multi-domain] Cd Length: 101 Bit Score: 71.19 E-value: 4.65e-15
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| CH | smart00033 | Calponin homology domain; Actin binding domains present in duplicate at the N-termini of ... |
270-372 | 5.33e-15 | |||||||||
Calponin homology domain; Actin binding domains present in duplicate at the N-termini of spectrin-like proteins (including dystrophin, alpha-actinin). These domains cross-link actin filaments into bundles and networks. A calponin homology domain is predicted in yeasst Cdc24p. Pssm-ID: 214479 [Multi-domain] Cd Length: 101 Bit Score: 70.81 E-value: 5.33e-15
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| CH_PLS_FIM_rpt3 | cd21219 | third calponin homology (CH) domain found in the plastin/fimbrin family; This family includes ... |
121-235 | 9.43e-14 | |||||||||
third calponin homology (CH) domain found in the plastin/fimbrin family; This family includes plastin and fimbrin. Plastin has three isoforms, plastin-1, -2, and -3. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Fimbrin has been found in plants and fungi. Arabidopsis thaliana fimbrin (AtFIM) includes fimbrin-1, -2, -3, -4, and -5, which cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, probably involved in cell cycle, cell division, cell elongation and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Fungal fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409068 Cd Length: 113 Bit Score: 67.69 E-value: 9.43e-14
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| FRQ1 | COG5126 | Ca2+-binding protein, EF-hand superfamily [Signal transduction mechanisms]; |
3-85 | 3.28e-13 | |||||||||
Ca2+-binding protein, EF-hand superfamily [Signal transduction mechanisms]; Pssm-ID: 444056 [Multi-domain] Cd Length: 137 Bit Score: 67.12 E-value: 3.28e-13
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| EF-hand_7 | pfam13499 | EF-hand domain pair; |
14-81 | 8.15e-13 | |||||||||
EF-hand domain pair; Pssm-ID: 463900 [Multi-domain] Cd Length: 67 Bit Score: 63.43 E-value: 8.15e-13
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| CH | smart00033 | Calponin homology domain; Actin binding domains present in duplicate at the N-termini of ... |
520-621 | 4.64e-11 | |||||||||
Calponin homology domain; Actin binding domains present in duplicate at the N-termini of spectrin-like proteins (including dystrophin, alpha-actinin). These domains cross-link actin filaments into bundles and networks. A calponin homology domain is predicted in yeasst Cdc24p. Pssm-ID: 214479 [Multi-domain] Cd Length: 101 Bit Score: 59.64 E-value: 4.64e-11
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| CH_SYNE1_rpt1 | cd21241 | first calponin homology (CH) domain found in synaptic nuclear envelope protein 1 and similar ... |
122-243 | 5.77e-11 | |||||||||
first calponin homology (CH) domain found in synaptic nuclear envelope protein 1 and similar proteins; Synaptic nuclear envelope protein 1 (SYNE-1), also called nesprin-1, enaptin, KASH domain-containing protein 1 (KASH1), myocyte nuclear envelope protein 1 (MYNE-1), or nuclear envelope spectrin repeat protein 1, is a multi-isomeric modular protein which forms a linking network between organelles and the actin cytoskeleton to maintain subcellular spatial organization. SYNE-1 also acts as a component of the LINC (LInker of Nucleoskeleton and Cytoskeleton) complex, which is involved in the connection between the nuclear lamina and the cytoskeleton. SYNE-1 contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409090 Cd Length: 113 Bit Score: 59.70 E-value: 5.77e-11
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| CH_jitterbug-like_rpt1 | cd21227 | first calponin homology (CH) domain found in Drosophila melanogaster protein jitterbug and ... |
128-234 | 1.07e-10 | |||||||||
first calponin homology (CH) domain found in Drosophila melanogaster protein jitterbug and similar proteins; Protein jitterbug (Jbug) is an actin-meshwork organizing protein. It is required to maintain the shape and cell orientation of the Drosophila notum epithelium during flight muscle attachment to tendon cells. Jbug contains three copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409076 Cd Length: 109 Bit Score: 58.84 E-value: 1.07e-10
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| CH_beta_spectrin_rpt1 | cd21193 | first calponin homology (CH) domain found in the beta spectrin family; The beta spectrin ... |
392-502 | 1.70e-10 | |||||||||
first calponin homology (CH) domain found in the beta spectrin family; The beta spectrin family includes beta-I, -II, -III, -IV and -V spectrins. Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. Beta-I spectrin, also called spectrin beta chain, erythrocytic (SPTB), may be involved in anaemia pathogenesis. Beta-II spectrin, also called spectrin beta chain, non-erythrocytic 1 (SPTBN1), or fodrin beta chain, is a component of fodrin, which is the general spectrin-like protein that seems to be involved in secretion. Fodrin interacts with calmodulin in a calcium-dependent manner and is thus a candidate for the calcium-dependent movement of the cytoskeleton at the membrane. Beta-IV spectrin is also called spectrin, non-erythroid beta chain 3 (SPTBN3) or spectrin beta chain, non-erythrocytic 4 (SPTBN4). Its mutation associates with congenital myopathy, neuropathy, and central deafness. Beta-III spectrin is also called spectrin beta chain, non-erythrocytic 2 (SPTBN2), or spinocerebellar ataxia 5 protein (SCA5). Beta-V spectrin, also called spectrin beta chain, non-erythrocytic 5 (SPTBN5), is a mammalian ortholog of Drosophila beta H spectrin. Beta-III and Beta-V spectrins may play crucial roles as longer actin-membrane cross-linkers or fulfill the need for greater extensible flexibility than can be provided by the other smaller conventional spectrins. Members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409042 Cd Length: 116 Bit Score: 58.46 E-value: 1.70e-10
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| CH_SYNE2_rpt1 | cd21242 | first calponin homology (CH) domain found in synaptic nuclear envelope protein 2; Synaptic ... |
124-234 | 3.49e-10 | |||||||||
first calponin homology (CH) domain found in synaptic nuclear envelope protein 2; Synaptic nuclear envelope protein 2 (SYNE-2), also called nesprin-2, KASH domain-containing protein 2 (KASH2), nuclear envelope spectrin repeat protein 2, nucleus and actin connecting element protein, or protein NUANCE, is a multi-isomeric modular protein which forms a linking network between organelles and the actin cytoskeleton to maintain subcellular spatial organization. SYNE-2 also acts as a component of the LINC (LInker of Nucleoskeleton and Cytoskeleton) complex, which is involved in the connection between the nuclear lamina and the cytoskeleton. SYNE-2 contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409091 Cd Length: 111 Bit Score: 57.53 E-value: 3.49e-10
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| CH_SpAIN1-like_rpt1 | cd21215 | first calponin homology (CH) domain found in Schizosaccharomyces pombe alpha-actinin-like ... |
397-503 | 6.28e-10 | |||||||||
first calponin homology (CH) domain found in Schizosaccharomyces pombe alpha-actinin-like protein 1 and similar proteins; Schizosaccharomyces pombe alpha-actinin-like protein 1 (SpAIN1) binds to actin and is involved in actin-ring formation and organization. It plays a role in cytokinesis and is involved in septation. Members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409064 Cd Length: 107 Bit Score: 56.64 E-value: 6.28e-10
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| CH_PLS_FIM_rpt2 | cd21218 | second calponin homology (CH) domain found in the plastin/fimbrin family; This family includes ... |
519-614 | 6.86e-10 | |||||||||
second calponin homology (CH) domain found in the plastin/fimbrin family; This family includes plastin and fimbrin. Plastin has three isoforms, plastin-1, -2, and -3, which are all actin-bundling proteins. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, LC64P, or lymphocyte cytosolic protein 1 (LCP-1), plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Fimbrin has been found in plants and fungi. Arabidopsis thaliana fimbrin (AtFIM) includes fimbrin-1, -2, -3, -4, and -5; they cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, probably involved in cell cycle, cell division, cell elongation and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Fungal fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409067 Cd Length: 114 Bit Score: 56.92 E-value: 6.86e-10
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| EFh_PEF_ALG-2_like | cd16185 | EF-hand, calcium binding motif, found in homologs of mammalian apoptosis-linked gene 2 protein ... |
15-81 | 2.45e-09 | |||||||||
EF-hand, calcium binding motif, found in homologs of mammalian apoptosis-linked gene 2 protein (ALG-2); The family includes some homologs of mammalian apoptosis-linked gene 2 protein (ALG-2) mainly found in lower eukaryotes, such as a parasitic protist Leishmarua major and a cellular slime mold Dictyostelium discoideum. These homologs contains five EF-hand motifs. Due to the presence of unfavorable residues at the Ca2+-coordinating positions, their non-canonical EF4 and EF5 hands may not bind Ca2+. Two Dictyostelium PEF proteins are the prototypes of this family. They may bind to cytoskeletal proteins and/or signal-transducing proteins localized to detergent-resistant membranes named lipid rafts, and occur as monomers or weak homo- or heterodimers like ALG-2. They can serve as a mediator for Ca2+ signaling-related Dictyostehum programmed cell death (PCD). Pssm-ID: 320060 [Multi-domain] Cd Length: 163 Bit Score: 56.45 E-value: 2.45e-09
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| CH_PLS_rpt3 | cd21298 | third calponin homology (CH) domain found in the plastin family; The plastin family includes ... |
121-235 | 2.67e-09 | |||||||||
third calponin homology (CH) domain found in the plastin family; The plastin family includes plastin-1, -2, and -3. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Members of this family contain four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409147 Cd Length: 117 Bit Score: 55.32 E-value: 2.67e-09
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| CH_SpAIN1-like_rpt1 | cd21215 | first calponin homology (CH) domain found in Schizosaccharomyces pombe alpha-actinin-like ... |
124-235 | 2.67e-09 | |||||||||
first calponin homology (CH) domain found in Schizosaccharomyces pombe alpha-actinin-like protein 1 and similar proteins; Schizosaccharomyces pombe alpha-actinin-like protein 1 (SpAIN1) binds to actin and is involved in actin-ring formation and organization. It plays a role in cytokinesis and is involved in septation. Members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409064 Cd Length: 107 Bit Score: 55.10 E-value: 2.67e-09
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| CH_FIMB_rpt3 | cd21300 | third calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar ... |
122-235 | 4.23e-09 | |||||||||
third calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar proteins; Fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409149 Cd Length: 119 Bit Score: 54.74 E-value: 4.23e-09
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| CH_beta_spectrin_rpt1 | cd21193 | first calponin homology (CH) domain found in the beta spectrin family; The beta spectrin ... |
124-234 | 7.13e-09 | |||||||||
first calponin homology (CH) domain found in the beta spectrin family; The beta spectrin family includes beta-I, -II, -III, -IV and -V spectrins. Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. Beta-I spectrin, also called spectrin beta chain, erythrocytic (SPTB), may be involved in anaemia pathogenesis. Beta-II spectrin, also called spectrin beta chain, non-erythrocytic 1 (SPTBN1), or fodrin beta chain, is a component of fodrin, which is the general spectrin-like protein that seems to be involved in secretion. Fodrin interacts with calmodulin in a calcium-dependent manner and is thus a candidate for the calcium-dependent movement of the cytoskeleton at the membrane. Beta-IV spectrin is also called spectrin, non-erythroid beta chain 3 (SPTBN3) or spectrin beta chain, non-erythrocytic 4 (SPTBN4). Its mutation associates with congenital myopathy, neuropathy, and central deafness. Beta-III spectrin is also called spectrin beta chain, non-erythrocytic 2 (SPTBN2), or spinocerebellar ataxia 5 protein (SCA5). Beta-V spectrin, also called spectrin beta chain, non-erythrocytic 5 (SPTBN5), is a mammalian ortholog of Drosophila beta H spectrin. Beta-III and Beta-V spectrins may play crucial roles as longer actin-membrane cross-linkers or fulfill the need for greater extensible flexibility than can be provided by the other smaller conventional spectrins. Members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409042 Cd Length: 116 Bit Score: 53.84 E-value: 7.13e-09
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| CH_SPTB-like_rpt1 | cd21246 | first calponin homology (CH) domain found in the beta-I spectrin-like subfamily; The beta-I ... |
392-502 | 7.30e-09 | |||||||||
first calponin homology (CH) domain found in the beta-I spectrin-like subfamily; The beta-I spectrin-like family includes beta-I, -II, -III and -IV spectrins. Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. Beta-I spectrin, also called spectrin beta chain, erythrocytic (SPTB), may be involved in anaemia pathogenesis. Beta-II spectrin, also called spectrin beta chain, non-erythrocytic 1 (SPTBN1), or fodrin beta chain, is a component of fodrin, which is the general spectrin-like protein that seems to be involved in secretion. Fodrin interacts with calmodulin in a calcium-dependent manner and is thus a candidate for the calcium-dependent movement of the cytoskeleton at the membrane. Beta-III spectrin, also called spectrin beta chain, non-erythrocytic 2 (SPTBN2), or spinocerebellar ataxia 5 protein (SCA5), may play a crucial role as a longer actin-membrane cross-linker or fulfill the need for greater extensible flexibility than can be provided by the other smaller conventional spectrins. Beta-IV spectrin is also called spectrin, non-erythroid beta chain 3 (SPTBN3) or spectrin beta chain, non-erythrocytic 4 (SPTBN4). Its mutation associates with congenital myopathy, neuropathy, and central deafness. Members of this subfamily contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409095 Cd Length: 117 Bit Score: 53.91 E-value: 7.30e-09
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| CH_SPTBN4_rpt1 | cd21318 | first calponin homology (CH) domain found in spectrin beta chain, non-erythrocytic 4 (SPTBN4) ... |
392-502 | 8.15e-09 | |||||||||
first calponin homology (CH) domain found in spectrin beta chain, non-erythrocytic 4 (SPTBN4) and similar proteins; Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. SPTBN4, also called beta-IV spectrin, or spectrin, non-erythroid beta chain 3 (SPTBN3), is a novel spectrin isolated as an interactor of the receptor tyrosine phosphatase-like protein ICA512. Its mutation associates with congenital myopathy, neuropathy, and central deafness. SPTBN4 contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409167 Cd Length: 139 Bit Score: 54.65 E-value: 8.15e-09
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| EH | cd00052 | Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and ... |
17-80 | 1.57e-08 | |||||||||
Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and signal transduction. The alignment contains a pair of EF-hand motifs, typically one of them is canonical and binds to Ca2+, while the other may not bind to Ca2+. A hydrophobic binding pocket is formed by residues from both EF-hand motifs. The EH domain binds to proteins containing NPF (class I), [WF]W or SWG (class II), or H[TS]F (class III) sequence motifs. Pssm-ID: 238009 [Multi-domain] Cd Length: 67 Bit Score: 51.45 E-value: 1.57e-08
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| EFh_PEF_CAPN13_14 | cd16195 | Penta-EF hand, calcium binding motifs, found in calpain-13 (CAPN13), calpain-14 (CAPN14), and ... |
3-103 | 1.91e-08 | |||||||||
Penta-EF hand, calcium binding motifs, found in calpain-13 (CAPN13), calpain-14 (CAPN14), and similar proteins; CAPN13, also termed calcium-activated neutral proteinase 13 (CANP 13), a 63.6 kDa calpain large subunit that exhibits a restricted tissue distribution with low levels of expression detected only in human testis and lung. In calpain family, CAPN13 is most closely related to calpain-14 (CAPN14). CAPN14, also termed calcium-activated neutral proteinase 14 (CANP 14), is a 76.7 kDa calpain large subunit that is most highly expressed in the oesophagus. Its expression and calpain activity can be induced by IL-13. Both CAPN13 and CAPN14 contain a calpain cysteine protease (CysPc) domain, a C2-domain-like (C2L) domain, and a C-terminal Ca2+-binding penta-EF-hand (PEF) domain. Pssm-ID: 320070 [Multi-domain] Cd Length: 168 Bit Score: 54.13 E-value: 1.91e-08
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| CH_SYNE-like_rpt1 | cd21190 | first calponin homology (CH) domain found in the synaptic nuclear envelope protein family; The ... |
124-234 | 4.14e-08 | |||||||||
first calponin homology (CH) domain found in the synaptic nuclear envelope protein family; The synaptic nuclear envelope (SYNE) family includes SYNE-1, -2 and calmin. SYNE-1 (also called nesprin-1, enaptin, KASH domain-containing protein 1, KASH1, myocyte nuclear envelope protein 1, MYNE-1, or nuclear envelope spectrin repeat protein 1) and SYNE-2 (also called nesprin-2, KASH domain-containing protein 2, KASH2, nuclear envelope spectrin repeat protein 2, nucleus and actin connecting element protein, or protein NUANCE) may act redundantly. They are multi-isomeric modular proteins which form a linking network between organelles and the actin cytoskeleton to maintain subcellular spatial organization. They also act as components of the LINC (LInker of Nucleoskeleton and Cytoskeleton) complex, which is involved in the connection between the nuclear lamina and the cytoskeleton. Calmin, also called calponin-like transmembrane domain protein, is a protein with calponin homology (CH) and transmembrane domains expressed in maturing spermatogenic cells. It may be involved in the development and/or maintenance of neuronal functions. Members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409039 Cd Length: 113 Bit Score: 51.80 E-value: 4.14e-08
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| EFh_PEF_Group_II_CAPN_like | cd16182 | Penta-EF hand, calcium binding motifs, found in PEF calpain family; The PEF calpain family ... |
3-102 | 5.03e-08 | |||||||||
Penta-EF hand, calcium binding motifs, found in PEF calpain family; The PEF calpain family belongs to the second group of penta-EF hand (PEF) proteins. It includes classical (also called conventional or typical) calpain (referring to a calcium-dependent papain-like enzymes, EC 3.4.22.17) large catalytic subunits (CAPN1, 2, 3, 8, 9, 11, 12, 13, 14) and two calpain small subunits (CAPNS1 and CAPNS2), which are largely confined to animals (metazoans). These PEF-containing are nonlysosomal intracellular calcium-activated intracellular cysteine proteases that play important roles in the degradation or functional modulation in a variety of substrates in response to calcium signalling. The classical mu- and m-calpains are heterodimers consisting of homologous but a distinct (large) L-subunit/chain (CAPN1 or CAPN2) and a common (small) S-subunit/chain (CAPNS1 or CAPNS2). These L-subunits (CAPN1 and CAPN2) and S-subunit CAPNS1 are ubiquitously found in all tissues. Other calpains likely consist of an isolated L-subunit/chain alone. Many of them, such as CAPNS2, CAPN3 (in skeletal muscle, or lens), CAPN8 (in stomach), CAPN9 (in digestive tracts), CAPN11 (in testis), CAPN12 (in follicles), are tissue-specific and have specific functions in distinct organs. The L-subunits of similar structure (called CALPA and B) also have been found in Drosophila melanogaster. The S-subunit seems to have a chaperone-like function for proper folding of the L-subunit. The catalytic L-subunits contain a short N-terminal anchor helix, followed by a calpain cysteine protease (CysPc) domain, a C2-domain-like (C2L) domain, and a C-terminal Ca2+-binding penta-EF-hand (PEF) domain. The S-subunits only have the PEF domain following an N-terminal Gly-rich hydrophobic domain. The calpains undergo a rearrangement of the protein backbone upon Ca2+-binding. Pssm-ID: 320057 [Multi-domain] Cd Length: 167 Bit Score: 53.00 E-value: 5.03e-08
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| CH_FLN-like_rpt2 | cd21184 | second calponin homology (CH) domain found in the filamin family; The filamin family includes ... |
267-361 | 6.73e-08 | |||||||||
second calponin homology (CH) domain found in the filamin family; The filamin family includes filamin-A (FLN-A), filamin-B (FLN-B) and filamin-C (FLN-C). Filamins function to anchor various transmembrane proteins to the actin cytoskeleton. FLN-A is also called actin-binding protein 280 (ABP-280), alpha-filamin, endothelial actin-binding protein, filamin-1, or non-muscle filamin. It promotes orthogonal branching of actin filaments and links actin filaments to membrane glycoproteins. It also serves as a scaffold for a wide range of cytoplasmic signaling proteins. FLN-B is also called ABP-278, ABP-280 homolog, actin-binding-like protein, beta-filamin, filamin homolog 1 (Fh1), filamin-3, thyroid autoantigen, truncated actin-binding protein, or truncated ABP. It connects cell membrane constituents to the actin cytoskeleton and may also promote orthogonal branching of actin filaments as well as link actin filaments to membrane glycoproteins. FLN-C, also called FLNc, ABP-280-like protein, ABP-L, actin-binding-like protein, filamin-2, or gamma-filamin, is a muscle-specific filamin that plays a central role in muscle cells, probably by functioning as a large actin-cross-linking protein. It may be involved in reorganizing the actin cytoskeleton in response to signaling events, and may also display structural functions at the Z lines in muscle cells. FLN-C is critical for normal myogenesis and for maintaining the structural integrity of the muscle fibers. This family also includes Drosophila melanogaster protein jitterbug (Jbug), which is an actin-meshwork organizing protein containing three copies of the CH domain. Other members of this family contain two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409033 Cd Length: 103 Bit Score: 50.70 E-value: 6.73e-08
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| EFh_HEF | cd15902 | EF-hand, calcium binding motif, found in the hexa-EF hand proteins family; The hexa-EF hand ... |
7-92 | 8.04e-08 | |||||||||
EF-hand, calcium binding motif, found in the hexa-EF hand proteins family; The hexa-EF hand proteins family, also named the calbindin sub-family, contains a group of six EF-hand Ca2+-binding proteins, including calretinin (CR, also termed 29 kDa calbindin), calbindin D28K (CB, also termed vitamin D-dependent calcium-binding protein, avian-type), and secretagogin (SCGN). CR is a cytosolic hexa-EF-hand calcium-binding protein predominantly expressed in a variety of normal and tumorigenic t-specific neurons of the central and peripheral nervous system. It is a multifunctional protein implicated in many biological processes, including cell proliferation, differentiation, and cell death. CB is highly expressed in brain tissue. It is a strong calcium-binding and buffering protein responsible for preventing a neuronal death as well as maintaining and controlling calcium homeostasis. SCGN is a six EF-hand calcium-binding protein expressed in neuroendocrine, pancreatic endocrine and retinal cells. It plays a crucial role in cell apoptosis, receptor signaling and differentiation. It is also involved in vesicle secretion through binding to various proteins, including interacts with SNAP25, SNAP23, DOC2alpha, ARFGAP2, rootletin, KIF5B, beta-tubulin, DDAH-2, ATP-synthase and myeloid leukemia factor 2. SCGN functions as a Ca2+ sensor/coincidence detector modulating vesicular exocytosis of neurotransmitters, neuropeptides or hormones. Although the family members share a significant amount of secondary sequence homology, they display altered structural and biochemical characteristics, and operate in distinct fashions. CB contains six EF-hand motifs in a single globular domain, where EF-hands 1, 3, 4, 5 bind four calcium ions. CR contains six EF-hand motifs within two independent domains, CR I-II and CR III-VI. They harbor two and four EF-hand motifs, respectively. The first 5 EF-hand motifs are capable of binding calcium ions, while the EF-hand 6 is inactive. SCGN consists of the three globular domains each of which contains a pair of EF-hand motifs. Human SCGN simultaneously binds four calcium ions through its EF-hands 3, 4, 5 and 6 in one high affinity and three low affinity calcium-binding sites. In contrast, SCGNs in other lower eukaryotes, such as D. rerio, X. laevis, M. domestica, G. gallus, O. anatinus, are fully competent in terms of six calcium-binding. Pssm-ID: 320075 [Multi-domain] Cd Length: 254 Bit Score: 53.90 E-value: 8.04e-08
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| CH_PLEC-like_rpt1 | cd21188 | first calponin homology (CH) domain found in the plectin/dystonin/MACF1 family; This family ... |
124-234 | 1.26e-07 | |||||||||
first calponin homology (CH) domain found in the plectin/dystonin/MACF1 family; This family includes plectin, dystonin and microtubule-actin cross-linking factor 1, isoforms 1/2/3/5 (MACF1). Plectin, also called PCN, PLTN, hemidesmosomal protein 1 (HD1), or plectin-1, is a structural component of muscle. It interlinks intermediate filaments with microtubules and microfilaments, and anchors intermediate filaments to desmosomes or hemidesmosomes. It could also bind muscle proteins such as actin to membrane complexes in muscle. Dystonin, also called 230 kDa bullous pemphigoid antigen, 230/240 kDa bullous pemphigoid antigen, bullous pemphigoid antigen 1 (BPA or BPAG1), dystonia musculorum protein, or hemidesmosomal plaque protein, is a cytoskeletal linker protein that acts as an integrator of intermediate filaments, actin, and microtubule cytoskeleton networks. It is required for anchoring either intermediate filaments to the actin cytoskeleton in neural and muscle cells, or keratin-containing intermediate filaments to hemidesmosomes in epithelial cells. MACF1, also called 620 kDa actin-binding protein (ABP620), actin cross-linking family protein 7 (ACF7), macrophin-1, or trabeculin-alpha, is a large protein containing numerous spectrin and leucine-rich repeat (LRR) domains. It facilitates actin-microtubule interactions at the cell periphery and couples the microtubule network to cellular junctions. Members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409037 Cd Length: 105 Bit Score: 50.09 E-value: 1.26e-07
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| CH_DYST_rpt1 | cd21236 | first calponin homology (CH) domain found in dystonin and similar proteins; Dystonin, also ... |
392-506 | 1.58e-07 | |||||||||
first calponin homology (CH) domain found in dystonin and similar proteins; Dystonin, also called 230 kDa bullous pemphigoid antigen, 230/240 kDa bullous pemphigoid antigen, bullous pemphigoid antigen 1 (BPA or BPAG1), dystonia musculorum protein, or hemidesmosomal plaque protein, is a cytoskeletal linker protein that acts as an integrator of intermediate filaments, actin, and microtubule cytoskeleton networks. It is required for anchoring either intermediate filaments to the actin cytoskeleton in neural and muscle cells, or keratin-containing intermediate filaments to hemidesmosomes in epithelial cells. Dystonin contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409085 Cd Length: 128 Bit Score: 50.37 E-value: 1.58e-07
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| CH_SPTBN2_rpt1 | cd21317 | first calponin homology (CH) domain found in spectrin beta chain, non-erythrocytic 2 (SPTBN2) ... |
392-502 | 1.90e-07 | |||||||||
first calponin homology (CH) domain found in spectrin beta chain, non-erythrocytic 2 (SPTBN2) and similar proteins; Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. SPTBN2, also called beta-III spectrin, or spinocerebellar ataxia 5 protein (SCA5), probably plays an important role in the neuronal membrane skeleton. Mutations in SPTBN2 is associated with spinocerebellar ataxia type 5. SPTBN2 contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409166 Cd Length: 132 Bit Score: 50.44 E-value: 1.90e-07
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| CH_FLN-like_rpt1 | cd21183 | first calponin homology (CH) domain found in the filamin family; The filamin family includes ... |
397-503 | 2.76e-07 | |||||||||
first calponin homology (CH) domain found in the filamin family; The filamin family includes filamin-A (FLN-A), filamin-B (FLN-B) and filamin-C (FLN-C). Filamins function to anchor various transmembrane proteins to the actin cytoskeleton. FLN-A is also called actin-binding protein 280 (ABP-280), alpha-filamin, endothelial actin-binding protein, filamin-1, or non-muscle filamin. It promotes orthogonal branching of actin filaments and links actin filaments to membrane glycoproteins. It also serves as a scaffold for a wide range of cytoplasmic signaling proteins. FLN-B is also called ABP-278, ABP-280 homolog, actin-binding-like protein, beta-filamin, filamin homolog 1 (Fh1), filamin-3, thyroid autoantigen, truncated actin-binding protein, or truncated ABP. It connects cell membrane constituents to the actin cytoskeleton and may also promote orthogonal branching of actin filaments as well as link actin filaments to membrane glycoproteins. FLN-C, also called FLNc, ABP-280-like protein, ABP-L, actin-binding-like protein, filamin-2, or gamma-filamin, is a muscle-specific filamin that plays a central role in muscle cells, probably by functioning as a large actin-cross-linking protein. It may be involved in reorganizing the actin cytoskeleton in response to signaling events, and may also display structural functions at the Z lines in muscle cells. FLN-C is critical for normal myogenesis and for maintaining the structural integrity of the muscle fibers. This family also includes Drosophila melanogaster protein jitterbug (Jbug), which is an actin-meshwork organizing protein containing three copies of the CH domain. Other members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409032 Cd Length: 108 Bit Score: 49.40 E-value: 2.76e-07
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| CH_FLN-like_rpt1 | cd21183 | first calponin homology (CH) domain found in the filamin family; The filamin family includes ... |
128-234 | 3.55e-07 | |||||||||
first calponin homology (CH) domain found in the filamin family; The filamin family includes filamin-A (FLN-A), filamin-B (FLN-B) and filamin-C (FLN-C). Filamins function to anchor various transmembrane proteins to the actin cytoskeleton. FLN-A is also called actin-binding protein 280 (ABP-280), alpha-filamin, endothelial actin-binding protein, filamin-1, or non-muscle filamin. It promotes orthogonal branching of actin filaments and links actin filaments to membrane glycoproteins. It also serves as a scaffold for a wide range of cytoplasmic signaling proteins. FLN-B is also called ABP-278, ABP-280 homolog, actin-binding-like protein, beta-filamin, filamin homolog 1 (Fh1), filamin-3, thyroid autoantigen, truncated actin-binding protein, or truncated ABP. It connects cell membrane constituents to the actin cytoskeleton and may also promote orthogonal branching of actin filaments as well as link actin filaments to membrane glycoproteins. FLN-C, also called FLNc, ABP-280-like protein, ABP-L, actin-binding-like protein, filamin-2, or gamma-filamin, is a muscle-specific filamin that plays a central role in muscle cells, probably by functioning as a large actin-cross-linking protein. It may be involved in reorganizing the actin cytoskeleton in response to signaling events, and may also display structural functions at the Z lines in muscle cells. FLN-C is critical for normal myogenesis and for maintaining the structural integrity of the muscle fibers. This family also includes Drosophila melanogaster protein jitterbug (Jbug), which is an actin-meshwork organizing protein containing three copies of the CH domain. Other members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409032 Cd Length: 108 Bit Score: 49.02 E-value: 3.55e-07
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| CH_DYST_rpt1 | cd21236 | first calponin homology (CH) domain found in dystonin and similar proteins; Dystonin, also ... |
120-234 | 3.67e-07 | |||||||||
first calponin homology (CH) domain found in dystonin and similar proteins; Dystonin, also called 230 kDa bullous pemphigoid antigen, 230/240 kDa bullous pemphigoid antigen, bullous pemphigoid antigen 1 (BPA or BPAG1), dystonia musculorum protein, or hemidesmosomal plaque protein, is a cytoskeletal linker protein that acts as an integrator of intermediate filaments, actin, and microtubule cytoskeleton networks. It is required for anchoring either intermediate filaments to the actin cytoskeleton in neural and muscle cells, or keratin-containing intermediate filaments to hemidesmosomes in epithelial cells. Dystonin contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409085 Cd Length: 128 Bit Score: 49.60 E-value: 3.67e-07
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| CH_PLEC_rpt1 | cd21235 | first calponin homology (CH) domain found in plectin and similar proteins; Plectin, also ... |
124-245 | 7.14e-07 | |||||||||
first calponin homology (CH) domain found in plectin and similar proteins; Plectin, also called PCN, PLTN, hemidesmosomal protein 1 (HD1), or plectin-1, is a structural component of muscle. It interlinks intermediate filaments with microtubules and microfilaments, and anchors intermediate filaments to desmosomes or hemidesmosomes. It can also bind muscle proteins such as actin to membrane complexes in muscle. Plectin contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409084 Cd Length: 119 Bit Score: 48.48 E-value: 7.14e-07
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| EFh_PI-PLC | cd15898 | EF-hand motif found in eukaryotic phosphoinositide-specific phospholipase C (PI-PLC, EC 3.1.4. ... |
16-104 | 1.29e-06 | |||||||||
EF-hand motif found in eukaryotic phosphoinositide-specific phospholipase C (PI-PLC, EC 3.1.4.11) isozymes; PI-PLC isozymes are signaling enzymes that hydrolyze the membrane phospholipids phosphatidylinositol-4,5-bisphosphate (PIP2) to generate two important second messengers in eukaryotic signal transduction cascades, Inositol 1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG). InsP3 triggers inflow of calcium from intracellular stores, while DAG, together with calcium, activates protein kinase C, which goes on to phosphorylate other molecules, leading to altered cellular activity. Calcium is required for the catalysis. This family corresponds to the four EF-hand motifs containing PI-PLC isozymes, including PI-PLC-beta (1-4), -gamma (1-2), -delta (1,3,4), -epsilon (1), -zeta (1), eta (1-2). Lower eukaryotes such as yeast and slime molds contain only delta-type isozymes. In contrast, other types of isoforms present in higher eukaryotes. This family also includes 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase 1 (PLC1) from fungi. Some homologs from plants contain only two atypical EF-hand motifs and they are not included. All PI-PLC isozymes except sperm-specific PI-PLC-zeta share a core set of domains, including an N-terminal pleckstrin homology (PH) domain, four atypical EF-hand motifs, a PLC catalytic core, and a single C2 domain. PI-PLC-zeta lacks the PH domain. The PLC catalytic core domain is a TIM barrel with two highly conserved regions (X and Y) split by a highly degenerate linker sequence. Most of EF-hand motifs found in PI-PLCs consist of a helix-loop-helix structure, but lack residues critical to metal binding. Moreover, the EF-hand region of most of PI-PLCs may have an important regulatory function, but it has yet to be identified. However, PI-PLC-zeta is a key exception. It is responsible for Ca2+ oscillations in fertilized oocytes and exhibits a high sensitivity to Ca2+ mediated through its EF-hand domain. In addition, PI-PLC-eta2 shows a canonical EF-loop directing Ca2+-sensitivity and thus can amplify transient Ca2+ signals. Also it appears that PI-PLC-delta1 can regulate the binding of PH domain to PIP2 in a Ca2+-dependent manner through its functionally important EF-hand domains. PI-PLCs can be activated by a variety of extracellular ligands, such as growth factors, hormones, cytokines and lipids. Their activation has been implicated in tumorigenesis and/or metastasis linked to migration, proliferation, growth, inflammation, angiogenesis and actin cytoskeleton reorganization. PI-PLC-beta isozymes are activated by G-protein coupled receptor (GPCR) through different mechanisms. However, PI-PLC-gamma isozymes are activated by receptor tyrosine kinase (RTK), such as Rho and Ras GTPases. In contrast, PI-PLC-epsilon are activated by both GPCR and RTK. PI-PLC-delta1 and PLC-eta 1 are activated by GPCR-mediated calcium mobilization. The activation mechanism for PI-PLC-zeta remains unclear. Pssm-ID: 320029 [Multi-domain] Cd Length: 137 Bit Score: 48.05 E-value: 1.29e-06
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| CH_AtFIM_like_rpt3 | cd21299 | third calponin homology (CH) domain found in the Arabidopsis thaliana fimbrin family; The ... |
121-235 | 1.31e-06 | |||||||||
third calponin homology (CH) domain found in the Arabidopsis thaliana fimbrin family; The Arabidopsis thaliana fimbrin (AtFIM) family includes Fimbrin-1, -2, -3, -4, and -5, which cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, probably involved in cell cycle, cell division, cell elongation and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Members of this family contain four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409148 Cd Length: 114 Bit Score: 47.50 E-value: 1.31e-06
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| SAC6 | COG5069 | Ca2+-binding actin-bundling protein fimbrin/plastin (EF-Hand superfamily) [Cytoskeleton]; |
388-595 | 1.43e-06 | |||||||||
Ca2+-binding actin-bundling protein fimbrin/plastin (EF-Hand superfamily) [Cytoskeleton]; Pssm-ID: 227401 [Multi-domain] Cd Length: 612 Bit Score: 51.48 E-value: 1.43e-06
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| CH_ACTN_rpt1 | cd21214 | first calponin homology (CH) domain found in the alpha-actinin family; The alpha-actinin (ACTN) ... |
394-500 | 1.46e-06 | |||||||||
first calponin homology (CH) domain found in the alpha-actinin family; The alpha-actinin (ACTN) family includes alpha-actinin-1, -2, -3, and -4. They are F-actin cross-linking proteins which are thought to anchor actin to a variety of intracellular structures. ACTN1 mutations cause congenital macrothrombocytopenia. ACTN2 mutations are associated with cardiomyopathies, as well as skeletal muscle disorder. ACTN3 is critical in anchoring the myofibrillar actin filaments and plays a key role in muscle contraction. ACTN4 is associated with cell motility and cancer invasion. It is probably involved in vesicular trafficking via its association with the CART complex, which is necessary for efficient transferrin receptor recycling but not for epidermal growth factor receptor (EGFR) degradation. Members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409063 Cd Length: 105 Bit Score: 47.00 E-value: 1.46e-06
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| CH_PLEC_rpt1 | cd21235 | first calponin homology (CH) domain found in plectin and similar proteins; Plectin, also ... |
392-515 | 1.83e-06 | |||||||||
first calponin homology (CH) domain found in plectin and similar proteins; Plectin, also called PCN, PLTN, hemidesmosomal protein 1 (HD1), or plectin-1, is a structural component of muscle. It interlinks intermediate filaments with microtubules and microfilaments, and anchors intermediate filaments to desmosomes or hemidesmosomes. It can also bind muscle proteins such as actin to membrane complexes in muscle. Plectin contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409084 Cd Length: 119 Bit Score: 47.33 E-value: 1.83e-06
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| EFh_PEF_Group_I | cd16180 | Penta-EF hand, calcium binding motifs, found in Group I PEF proteins; The family corresponds ... |
2-101 | 1.86e-06 | |||||||||
Penta-EF hand, calcium binding motifs, found in Group I PEF proteins; The family corresponds to Group I PEF proteins that have been found not only in higher animals but also in lower animals, plants, fungi and protists. Group I PEF proteins include apoptosis-linked gene 2 protein (ALG-2), peflin and similar proteins. ALG-2, also termed programmed cell death protein 6 (PDCD6), is a widely expressed calcium-binding modulator protein associated with cell proliferation and death, as well as cell survival. It forms a homodimer in the cell or a heterodimer with its closest paralog peflin. Among the PEF proteins, ALG-2 can bind three Ca2+ ions through its EF1, EF3, and EF5 hands, where it is unique in that its EF5 hand binds Ca2+ ion in a canonical coordination. Peflin is a ubiquitously expressed 30-kD PEF protein containing five EF-hand motifs in its C-terminal domain and a longer N-terminal hydrophobic domain (NHB domain) than any other member of the PEF family. The NHB domain harbors nine repeats of a nonapeptide (A/PPGGPYGGP). Peflin may modulate the function of ALG-2 in Ca2+ signaling. It exists only as a heterodimer with ALG-2, and binds two Ca2+ ions through its EF1 and EF3 hands. Its additional EF5 hand is unpaired and does not bind Ca2+ ion but mediates the heterodimerization with ALG-2. The dissociation of heterodimer occurs in the presence of Ca2+. Pssm-ID: 320055 [Multi-domain] Cd Length: 164 Bit Score: 48.29 E-value: 1.86e-06
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| CH_SPTBN5_rpt1 | cd21247 | first calponin homology (CH) domain found in spectrin beta chain, non-erythrocytic 5 (SPTBN5) ... |
397-503 | 1.89e-06 | |||||||||
first calponin homology (CH) domain found in spectrin beta chain, non-erythrocytic 5 (SPTBN5) and similar proteins; Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. SPTBN5, also called beta-V spectrin, is a mammalian ortholog of Drosophila beta H spectrin that may play a crucial role as a longer actin-membrane cross-linker or to fulfill the need for greater extensible flexibility than can be provided by the other smaller conventional spectrins. SPTBN5 contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409096 Cd Length: 125 Bit Score: 47.45 E-value: 1.89e-06
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| CH_PLS1_rpt3 | cd21329 | third calponin homology (CH) domain found in plastin-1; Plastin-1, also called ... |
121-235 | 2.04e-06 | |||||||||
third calponin homology (CH) domain found in plastin-1; Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. It contains four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409178 Cd Length: 118 Bit Score: 46.90 E-value: 2.04e-06
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| S-100 | cd00213 | S-100: S-100 domain, which represents the largest family within the superfamily of proteins ... |
35-83 | 2.65e-06 | |||||||||
S-100: S-100 domain, which represents the largest family within the superfamily of proteins carrying the Ca-binding EF-hand motif. Note that this S-100 hierarchy contains only S-100 EF-hand domains, other EF-hands have been modeled separately. S100 proteins are expressed exclusively in vertebrates, and are implicated in intracellular and extracellular regulatory activities. Intracellularly, S100 proteins act as Ca-signaling or Ca-buffering proteins. The most unusual characteristic of certain S100 proteins is their occurrence in extracellular space, where they act in a cytokine-like manner through RAGE, the receptor for advanced glycation products. Structural data suggest that many S100 members exist within cells as homo- or heterodimers and even oligomers; oligomerization contributes to their functional diversification. Upon binding calcium, most S100 proteins change conformation to a more open structure exposing a hydrophobic cleft. This hydrophobic surface represents the interaction site of S100 proteins with their target proteins. There is experimental evidence showing that many S100 proteins have multiple binding partners with diverse mode of interaction with different targets. In addition to S100 proteins (such as S100A1,-3,-4,-6,-7,-10,-11,and -13), this group includes the ''fused'' gene family, a group of calcium binding S100-related proteins. The ''fused'' gene family includes multifunctional epidermal differentiation proteins - profilaggrin, trichohyalin, repetin, hornerin, and cornulin; functionally these proteins are associated with keratin intermediate filaments and partially crosslinked to the cell envelope. These ''fused'' gene proteins contain N-terminal sequence with two Ca-binding EF-hands motif, which may be associated with calcium signaling in epidermal cells and autoprocessing in a calcium-dependent manner. In contrast to S100 proteins, "fused" gene family proteins contain an extraordinary high number of almost perfect peptide repeats with regular array of polar and charged residues similar to many known cell envelope proteins. Pssm-ID: 238131 [Multi-domain] Cd Length: 88 Bit Score: 45.94 E-value: 2.65e-06
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| CH_MACF1_rpt1 | cd21237 | first calponin homology (CH) domain found in microtubule-actin cross-linking factor 1, ... |
392-513 | 2.70e-06 | |||||||||
first calponin homology (CH) domain found in microtubule-actin cross-linking factor 1, isoforms 1/2/3/5 (MACF1) and similar proteins; MACF1, also called 620 kDa actin-binding protein (ABP620), actin cross-linking family protein 7 (ACF7), macrophin-1, or trabeculin-alpha, is a large protein containing numerous spectrin and leucine-rich repeat (LRR) domains. It facilitates actin-microtubule interactions at the cell periphery and couples the microtubule network to cellular junctions. MACF1 contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409086 Cd Length: 118 Bit Score: 46.56 E-value: 2.70e-06
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| CH_DMD-like_rpt1 | cd21186 | first calponin homology (CH) domain found in the dystrophin family; The dystrophin family ... |
397-497 | 3.00e-06 | |||||||||
first calponin homology (CH) domain found in the dystrophin family; The dystrophin family includes dystrophin and its paralog, utrophin. Dystrophin, encoded by the DMD gene, is a large, submembrane cytoskeletal protein that is the main component of the dystrophin-glycoprotein complex (DGC) in skeletal muscles. It links the transmembrane DGC to the actin cytoskeleton through binding strongly to the cytoplasmic tail of beta-dystroglycan, the transmembrane subunit of a highly O-glycosylated cell-surface protein. Dystrophin is also involved in maintaining the structural integrity of cells, as well as in the formation of the blood-brain barrier (BBB). Utrophin, also called dystrophin-related protein 1 (DRP-1), is an autosomal dystrophin homolog that increases dystrophic muscle function and reduces pathology. It is broadly expressed in both the mRNA and protein levels, and occurs in the cerebrovascular endothelium. Utrophin forms the utrophin-glycoprotein complex (UGC) by interacting with dystroglycans (DGs) and sarcoglycan-dystroglycans, as well as sarcoglycan and sarcospan (SG-SSPN) subcomplexes. It may act as a scaffolding protein that stabilizes lipid microdomains and clusters mechanosensitive channel subunits, and links the F-actin cytoskeleton to the cell membrane via the associated glycoprotein complex. Members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409035 Cd Length: 107 Bit Score: 46.22 E-value: 3.00e-06
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| EFh_HEF | cd15902 | EF-hand, calcium binding motif, found in the hexa-EF hand proteins family; The hexa-EF hand ... |
18-101 | 3.14e-06 | |||||||||
EF-hand, calcium binding motif, found in the hexa-EF hand proteins family; The hexa-EF hand proteins family, also named the calbindin sub-family, contains a group of six EF-hand Ca2+-binding proteins, including calretinin (CR, also termed 29 kDa calbindin), calbindin D28K (CB, also termed vitamin D-dependent calcium-binding protein, avian-type), and secretagogin (SCGN). CR is a cytosolic hexa-EF-hand calcium-binding protein predominantly expressed in a variety of normal and tumorigenic t-specific neurons of the central and peripheral nervous system. It is a multifunctional protein implicated in many biological processes, including cell proliferation, differentiation, and cell death. CB is highly expressed in brain tissue. It is a strong calcium-binding and buffering protein responsible for preventing a neuronal death as well as maintaining and controlling calcium homeostasis. SCGN is a six EF-hand calcium-binding protein expressed in neuroendocrine, pancreatic endocrine and retinal cells. It plays a crucial role in cell apoptosis, receptor signaling and differentiation. It is also involved in vesicle secretion through binding to various proteins, including interacts with SNAP25, SNAP23, DOC2alpha, ARFGAP2, rootletin, KIF5B, beta-tubulin, DDAH-2, ATP-synthase and myeloid leukemia factor 2. SCGN functions as a Ca2+ sensor/coincidence detector modulating vesicular exocytosis of neurotransmitters, neuropeptides or hormones. Although the family members share a significant amount of secondary sequence homology, they display altered structural and biochemical characteristics, and operate in distinct fashions. CB contains six EF-hand motifs in a single globular domain, where EF-hands 1, 3, 4, 5 bind four calcium ions. CR contains six EF-hand motifs within two independent domains, CR I-II and CR III-VI. They harbor two and four EF-hand motifs, respectively. The first 5 EF-hand motifs are capable of binding calcium ions, while the EF-hand 6 is inactive. SCGN consists of the three globular domains each of which contains a pair of EF-hand motifs. Human SCGN simultaneously binds four calcium ions through its EF-hands 3, 4, 5 and 6 in one high affinity and three low affinity calcium-binding sites. In contrast, SCGNs in other lower eukaryotes, such as D. rerio, X. laevis, M. domestica, G. gallus, O. anatinus, are fully competent in terms of six calcium-binding. Pssm-ID: 320075 [Multi-domain] Cd Length: 254 Bit Score: 48.89 E-value: 3.14e-06
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| EFh_PEF_CalpA_B | cd16196 | Penta-EF hand, calcium binding motifs, found in Drosophila melanogaster calpain-A (CalpA), ... |
19-85 | 3.42e-06 | |||||||||
Penta-EF hand, calcium binding motifs, found in Drosophila melanogaster calpain-A (CalpA), calpain-B (CalpB), and similar proteins; The family contains two calpains that have been found in Drosophila, CalpA and CalpB. CalpA, also termed calcium-activated neutral proteinase A (CANP A), or calpain-A catalytic subunit, is a Drosophila calpain homolog specifically expressed in a few neurons in the central nervous system, in scattered endocrine cells in the midgut, and in blood cells. CalpB, also termed calcium-activated neutral proteinase B (CANP B), contains calpain-B catalytic subunit 1 and calpain-B catalytic subunit 2. Both CalpA and CalpB are closely related to that of vertebrate calpains, and they share similar domain architecture, which consists of four domains: the N-terminal domain I, the catalytic domain II carrying the three active site residues, Cys, His and Asn, the Ca2+-regulated phospholipid-binding domain III, and penta-EF-hand Ca2+-binding domain IV. Besides, CalpA and CalpB display some distinguishing structural features that are not found in mammalian typical calpains. CalpA harbors a 76 amino acid long hydrophobic stretch inserted in domain IV, which may be involved in membrane attachment of this enzyme. CalpB has an unusually long N-terminal tail of 224 amino acids, which belongs to the class of intrinsically unstructured proteins (IUP) and may become ordered upon binding to target protein(s). Moreover, they do not need small regulatory subunits for their catalytic activity, and their proteolytic function is not regulated by an intrinsic inhibitor as the Drosophila genome contains neither regulatory subunit nor calpastatin orthologs. As a result, they may exist as a monomer or perhaps as a homo- or heterodimer together with a second large subunit. Furthermore, both CalpA and CalpB are dispensable for viability and fertility and do not share vital functions during Drosophila development. Phosphatidylinositol 4,5-diphosphate, phosphatidylinositol 4-monophosphate, phosphatidylinositol, and phosphatidic acid can stimulate the activity and the rate of activation of CalpA, but not CalpB. Calpain A modulates Toll responses by limited Cactus/IkappaB proteolysis. CalpB directly interacts with talin, an important component of the focal adhesion complex, and functions as an important modulator in border cell migration within egg chambers, which may act via the digestion of talin. CalpB can be phosphorylated by cAMP-dependent protein kinase (protein kinase A, PKA; EC 2.7.11.11) at Ser240 and Ser845, as well as by mitogen-activated protein kinase (ERK1 and ERK2; EC 2.7.11.24) at Thr747. The activation of the ERK pathway by extracellular signals results in the phosphorylation and activation of calpain B. In Schneider cells (S2), calpain B was mainly in the cytoplasm and upon a rise in Ca2+ the enzyme adhered to intracellular membranes. Pssm-ID: 320071 [Multi-domain] Cd Length: 167 Bit Score: 47.58 E-value: 3.42e-06
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| PTZ00184 | PTZ00184 | calmodulin; Provisional |
14-80 | 3.96e-06 | |||||||||
calmodulin; Provisional Pssm-ID: 185504 [Multi-domain] Cd Length: 149 Bit Score: 47.06 E-value: 3.96e-06
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| EH | smart00027 | Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe ... |
8-80 | 4.47e-06 | |||||||||
Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe (NPF) sequences. Pssm-ID: 197477 [Multi-domain] Cd Length: 96 Bit Score: 45.35 E-value: 4.47e-06
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| CH_PLEC-like_rpt1 | cd21188 | first calponin homology (CH) domain found in the plectin/dystonin/MACF1 family; This family ... |
397-497 | 4.65e-06 | |||||||||
first calponin homology (CH) domain found in the plectin/dystonin/MACF1 family; This family includes plectin, dystonin and microtubule-actin cross-linking factor 1, isoforms 1/2/3/5 (MACF1). Plectin, also called PCN, PLTN, hemidesmosomal protein 1 (HD1), or plectin-1, is a structural component of muscle. It interlinks intermediate filaments with microtubules and microfilaments, and anchors intermediate filaments to desmosomes or hemidesmosomes. It could also bind muscle proteins such as actin to membrane complexes in muscle. Dystonin, also called 230 kDa bullous pemphigoid antigen, 230/240 kDa bullous pemphigoid antigen, bullous pemphigoid antigen 1 (BPA or BPAG1), dystonia musculorum protein, or hemidesmosomal plaque protein, is a cytoskeletal linker protein that acts as an integrator of intermediate filaments, actin, and microtubule cytoskeleton networks. It is required for anchoring either intermediate filaments to the actin cytoskeleton in neural and muscle cells, or keratin-containing intermediate filaments to hemidesmosomes in epithelial cells. MACF1, also called 620 kDa actin-binding protein (ABP620), actin cross-linking family protein 7 (ACF7), macrophin-1, or trabeculin-alpha, is a large protein containing numerous spectrin and leucine-rich repeat (LRR) domains. It facilitates actin-microtubule interactions at the cell periphery and couples the microtubule network to cellular junctions. Members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409037 Cd Length: 105 Bit Score: 45.47 E-value: 4.65e-06
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| CH_PLS1_rpt2 | cd21326 | second calponin homology (CH) domain found in plastin-1; Plastin-1, also called ... |
513-620 | 5.17e-06 | |||||||||
second calponin homology (CH) domain found in plastin-1; Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. It contains four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409175 Cd Length: 121 Bit Score: 46.03 E-value: 5.17e-06
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| FRQ1 | COG5126 | Ca2+-binding protein, EF-hand superfamily [Signal transduction mechanisms]; |
11-98 | 5.34e-06 | |||||||||
Ca2+-binding protein, EF-hand superfamily [Signal transduction mechanisms]; Pssm-ID: 444056 [Multi-domain] Cd Length: 137 Bit Score: 46.32 E-value: 5.34e-06
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| EFh_parvalbumins | cd16253 | EF-hand, calcium binding motif, found in parvalbumins; Parvalbumins are small, acidic, ... |
4-82 | 5.71e-06 | |||||||||
EF-hand, calcium binding motif, found in parvalbumins; Parvalbumins are small, acidic, cytosolic EF-hand-containing Ca2+-buffer and Ca2+ transporter/shuttle proteins belonging to EF-hand superfamily. They are expressed by vertebrates in fast-twitch muscle cells, specific neurons of the central and peripheral nervous system, sensory cells of the mammalian auditory organ (Corti's cell), and some other cells, and characterized by the presence of three consecutive EF-hand motifs (helix-loop-helix) called AB, CD, and EF, but only CD and EF can chelate metal ions, such as Ca2+ and Mg2+. Thus, they may play an additional role in Mg2+ handling. Moreover, parvalbumins represent one of the major animal allergens. In metal-bound states, parvalbumins possess a rigid and stable tertiary structure and display strong allergenicity. In contrast, the metal-free parvalbumins are intrinsically disordered, and the loss of metal ions results in a conformational change that decreases their IgE binding capacity. Furthermore, parvalbumins have been widely used as a neuronal marker for a variety of functional brain systems. They also function as a Ca2+ shuttle transporting Ca2+ from troponin-C (TnC) to the sarcoplasmic reticulum (SR) Ca2+ pump during muscle relaxation. Thus they may facilitate myocardial relaxation and play important roles in cardiac diastolic dysfunction. Parvalbumins consists of alpha- and beta- sublineages, which can be distinguished on the basis of isoelectric point (pI > 5 for alpha; pI Pssm-ID: 319996 [Multi-domain] Cd Length: 101 Bit Score: 45.24 E-value: 5.71e-06
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| EFh_parvalbumin_beta | cd16255 | EF-hand, calcium binding motif, found in beta-parvalbumin; Beta-parvalbumin, also termed ... |
4-79 | 6.40e-06 | |||||||||
EF-hand, calcium binding motif, found in beta-parvalbumin; Beta-parvalbumin, also termed Oncomodulin-1 (OM), is a small calcium-binding protein that is expressed in hepatomas, as well as in the blastocyst and the cytotrophoblasts of the placenta. It is also found to be expressed in the cochlear outer hair cells of the organ of Corti and frequently expressed in neoplasms. Mammalian beta-parvalbumin is secreted by activated macrophages and neutrophils. It may function as a tissue-specific Ca2+-dependent regulatory protein, and may also serve as a specialized cytosolic Ca2+ buffer. Beta-parvalbumin acts as a potent growth-promoting signal between the innate immune system and neurons in vivo. It has high and specific affinity for its receptor on retinal ganglion cells (RGC) and functions as the principal mediator of optic nerve regeneration. It exerts its effects in a cyclic adenosine monophosphate (cAMP)-dependent manner and can further elevate intracellular cAMP levels. Moreover, beta-parvalbumin is associated with efferent function and outer hair cell electromotility, and can identify different hair cell types in the mammalian inner ear. Beta-parvalbumin is characterized by the presence of three consecutive EF-hand motifs (helix-loop-helix) called AB, CD, and EF, but only CD and EF can chelate metal ions, such as Ca2+ and Mg2+. The EF site displays a high-affinity for Ca2+/Mg2+, and the CD site is a low-affinity Ca2+-specific site. In addition, beta-parvalbumin is distinguished from other parvalbumins by its unusually low isoelectric point (pI = 3.1) and sequence eccentricities (e.g., Y57-L58-D59 instead of F57-I58-E59). Pssm-ID: 319998 [Multi-domain] Cd Length: 101 Bit Score: 45.11 E-value: 6.40e-06
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| EFh_parvalbumin_like | cd16251 | EF-hand, calcium binding motif, found in parvalbumin-like EF-hand family; The family includes ... |
14-82 | 7.00e-06 | |||||||||
EF-hand, calcium binding motif, found in parvalbumin-like EF-hand family; The family includes alpha- and beta-parvalbumins, and a group of uncharacterized calglandulin-like proteins. Parvalbumins are small, acidic, cytosolic EF-hand-containing Ca2+-buffer and Ca2+ transporter/shuttle proteins belonging to EF-hand superfamily. They are expressed by vertebrates in fast-twitch muscle cells, specific neurons of the central and peripheral nervous system, sensory cells of the mammalian auditory organ (Corti's cell), and some other cells, and characterized by the presence of three consecutive EF-hand motifs (helix-loop-helix) called AB, CD, and EF, but only CD and EF can chelate metal ions, such as Ca2+ and Mg2+. Thus, they may play an additional role in Mg2+ handling. Moreover, parvalbumins represent one of the major animal allergens. In metal-bound states, parvalbumins possess a rigid and stable tertiary structure and display strong allergenicity. In contrast, the metal-free parvalbumins are intrinsically disordered, and the loss of metal ions results in a conformational change that decreases their IgE binding capacity. Furthermore, parvalbumins have been widely used as a neuronal marker for a variety of functional brain systems. They also function as a Ca2+ shuttle transporting Ca2+ from troponin-C (TnC) to the sarcoplasmic reticulum (SR) Ca2+ pump during muscle relaxation. Thus they may facilitate myocardial relaxation and play important roles in cardiac diastolic dysfunction. Parvalbumins consists of alpha- and beta- sublineages, which can be distinguished on the basis of isoelectric point (pI > 5 for alpha; pI Pssm-ID: 319994 [Multi-domain] Cd Length: 101 Bit Score: 45.22 E-value: 7.00e-06
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| PTZ00183 | PTZ00183 | centrin; Provisional |
3-93 | 7.99e-06 | |||||||||
centrin; Provisional Pssm-ID: 185503 [Multi-domain] Cd Length: 158 Bit Score: 46.22 E-value: 7.99e-06
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| CH_PLS_FIM_rpt1 | cd21217 | first calponin homology (CH) domain found in the plastin/fimbrin family; This family includes ... |
456-501 | 9.82e-06 | |||||||||
first calponin homology (CH) domain found in the plastin/fimbrin family; This family includes plastin and fimbrin. Plastin has three isoforms, plastin-1, -2, and -3, which are all actin-bundling proteins. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, LC64P, or lymphocyte cytosolic protein 1 (LCP-1), plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Fimbrin has been found in plants and fungi. Arabidopsis thaliana fimbrin (AtFIM) includes fimbrin-1, -2, -3, -4, and -5; they cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, probably involved in cell cycle, cell division, cell elongation and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Fungal fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409066 [Multi-domain] Cd Length: 114 Bit Score: 44.87 E-value: 9.82e-06
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| CH_CTX_rpt1 | cd21225 | first calponin homology (CH) domain found in cortexillin; Cortexillins are actin-bundling ... |
394-503 | 1.18e-05 | |||||||||
first calponin homology (CH) domain found in cortexillin; Cortexillins are actin-bundling proteins that play a critical role in regulating cell morphology and actin cytoskeleton reorganization. They play a major role in cytokinesis and contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409074 Cd Length: 111 Bit Score: 44.83 E-value: 1.18e-05
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| CH_jitterbug-like_rpt1 | cd21227 | first calponin homology (CH) domain found in Drosophila melanogaster protein jitterbug and ... |
397-503 | 1.25e-05 | |||||||||
first calponin homology (CH) domain found in Drosophila melanogaster protein jitterbug and similar proteins; Protein jitterbug (Jbug) is an actin-meshwork organizing protein. It is required to maintain the shape and cell orientation of the Drosophila notum epithelium during flight muscle attachment to tendon cells. Jbug contains three copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409076 Cd Length: 109 Bit Score: 44.59 E-value: 1.25e-05
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| EFh_PI-PLCdelta | cd16202 | EF-hand motif found in phosphoinositide phospholipase C delta (PI-PLC-delta); PI-PLC-delta ... |
16-95 | 1.46e-05 | |||||||||
EF-hand motif found in phosphoinositide phospholipase C delta (PI-PLC-delta); PI-PLC-delta isozymes represent a class of metazoan PI-PLCs that are some of the most sensitive to calcium among all PLCs. Their activation is modulated by intracellular calcium ion concentration, phospholipids, polyamines, and other proteins, such as RhoAGAP. Like other PI-PLC isozymes, PI-PLC-delta isozymes contain a core set of domains, including an N-terminal pleckstrin homology (PH) domain, four atypical EF-hand motifs, a PLC catalytic core, and a single C-terminal C2 domain. The PLC catalytic core domain is a TIM barrel with two highly conserved regions (X and Y) split by a highly degenerate linker sequence. There are three PI-PLC-delta isozymes (1, 3 and 4). PI-PLC-delta1 is relatively well characterized. It is activated by high calcium levels generated by other PI-PLC family members, and therefore functions as a calcium amplifier within the cell. Different PI-PLC-delta isozymes have different tissue distribution and different subcellular locations. PI-PLC-delta1 is mostly a cytoplasmic protein, PI-PLC-delta3 is located in the membrane, and PI-PLC-delta4 is predominantly detected in the cell nucleus. PI-PLC-delta isozymes is evolutionarily conserved even in non-mammalian species, such as yeast, slime molds and plants. Pssm-ID: 320032 [Multi-domain] Cd Length: 140 Bit Score: 45.30 E-value: 1.46e-05
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| EFh_calglandulin_like | cd16252 | EF-hand, calcium binding motif, found in uncharacterized calglandulin-like proteins; The ... |
1-82 | 1.68e-05 | |||||||||
EF-hand, calcium binding motif, found in uncharacterized calglandulin-like proteins; The family corresponds to a group of uncharacterized calglandulin-like proteins. Although their biological function remain unclear, they show high sequence similarity with human calglandulin-like protein GAGLP, which is an ortholog of calglandulin from the venom glands of Bothrops insularis snake. Both GAGLP and calglandulin are putative Ca2+-binding proteins with four EF-hand motifs. However, members in this family contain only three EF-hand motifs. In this point, they may belong to the parvalbumin-like EF-hand family, which is characterized by the presence of three consecutive EF-hand motifs (helix-loop-helix). Pssm-ID: 319995 [Multi-domain] Cd Length: 106 Bit Score: 44.06 E-value: 1.68e-05
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| EFh_CREC_Calumenin_like | cd16226 | EF-hand, calcium binding motif, found in calumenin, reticulocalbin-1 (RCN-1), reticulocalbin-3 ... |
9-100 | 1.74e-05 | |||||||||
EF-hand, calcium binding motif, found in calumenin, reticulocalbin-1 (RCN-1), reticulocalbin-3 (RCN-3), and similar proteins; The family corresponds to a group of six EF-hand Ca2+-binding proteins, including calumenin (also known as crocalbin or CBP-50), reticulocalbin-1 (RCN-1), reticulocalbin-3 (RCN-3), and similar proteins. Calumenin is an endo/sarcoplasmic reticulum (ER/SR) resident low-affinity Ca2+-binding protein that contains six EF-hand domains and a C-terminal SR retention signal His-Asp-Glu-Phe (HDEF) tetrapeptide. It functions as a novel regulator of SERCA2, and its expressional changes are tightly coupled with Ca2+-cycling of cardiomyocytes. It is also broadly involved in haemostasis and in the pathophysiology of thrombosis. Moreover, the extracellular calumenin acts as a suppressor of cell migration and tumor metastasis. RCN-1 is an endoplasmic reticulum resident Ca2+-binding protein with a carboxyl-terminal His-Asp-Glu-Leu (HDEL) tetrapeptide signal. It acts as a potential negative regulator of B-RAF activation and can negatively modulate cardiomyocyte hypertrophy by inhibition of the mitogen-activated protein kinase signalling cascade. It also plays a key role in the development of doxorubicin-associated resistance. RCN-3 is a putative six EF-hand Ca2+-binding protein that contains five RXXR (X is any amino acid) motifs and a C-terminal ER retrieval signal HDEL tetrapeptide. The RXXR motif represents the target sequence of subtilisin-like proprotein convertases (SPCs). RCN-3 is specifically bound to the paired basic amino-acid-cleaving enzyme-4 (PACE4) precursor protein and plays an important role in the biosynthesis of PACE4. Pssm-ID: 320024 [Multi-domain] Cd Length: 264 Bit Score: 46.81 E-value: 1.74e-05
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| PTZ00183 | PTZ00183 | centrin; Provisional |
10-80 | 1.76e-05 | |||||||||
centrin; Provisional Pssm-ID: 185503 [Multi-domain] Cd Length: 158 Bit Score: 45.45 E-value: 1.76e-05
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| CH_dFLNA-like_rpt1 | cd21311 | first calponin homology (CH) domain found in Drosophila melanogaster filamin-A (dFLNA) and ... |
397-505 | 1.86e-05 | |||||||||
first calponin homology (CH) domain found in Drosophila melanogaster filamin-A (dFLNA) and similar proteins; Drosophila melanogaster filamin-A (dFLNA or dFLN-A), also called actin-binding protein 280 (ABP-280) or filamin-1, is involved in germline ring canal formation. It may tether actin microfilaments within the ovarian ring canal to the cell membrane and contributes to actin microfilament organization. dFLNA contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409160 Cd Length: 124 Bit Score: 44.36 E-value: 1.86e-05
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| CH_FLN_rpt1 | cd21228 | first calponin homology (CH) domain found in filamins; The filamin family includes filamin-A ... |
397-503 | 1.88e-05 | |||||||||
first calponin homology (CH) domain found in filamins; The filamin family includes filamin-A (FLN-A), filamin-B (FLN-B) and filamin-C (FLN-C). Filamins function to anchor various transmembrane proteins to the actin cytoskeleton. FLN-A is also called actin-binding protein 280 (ABP-280), alpha-filamin, endothelial actin-binding protein, filamin-1, or non-muscle filamin. It promotes orthogonal branching of actin filaments and links actin filaments to membrane glycoproteins. It also serves as a scaffold for a wide range of cytoplasmic signaling proteins. FLN-B is also called ABP-278, ABP-280 homolog, actin-binding-like protein, beta-filamin, filamin homolog 1 (Fh1), filamin-3, thyroid autoantigen, truncated actin-binding protein, or truncated ABP. It connects cell membrane constituents to the actin cytoskeleton and may also promote orthogonal branching of actin filaments as well as link actin filaments to membrane glycoproteins. FLN-C, also called FLNc, ABP-280-like protein, ABP-L, actin-binding-like protein, filamin-2, or gamma-filamin, is a muscle-specific filamin that plays a central role in muscle cells, probably by functioning as a large actin-cross-linking protein. It may be involved in reorganizing the actin cytoskeleton in response to signaling events, and may also display structural functions at the Z lines in muscle cells. FLN-C is critical for normal myogenesis and for maintaining the structural integrity of the muscle fibers. Members of this family contain two copies of the CH domain. The model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409077 Cd Length: 108 Bit Score: 44.02 E-value: 1.88e-05
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| EFh_HEF_CR | cd16177 | EF-hand, calcium binding motif, found in calretinin (CR); CR, also termed 29 kDa calbindin, is ... |
15-80 | 2.19e-05 | |||||||||
EF-hand, calcium binding motif, found in calretinin (CR); CR, also termed 29 kDa calbindin, is a cytosolic hexa-EF-hand calcium-binding protein predominantly expressed in a variety of normal and tumorigenic t specific neurons of the central and peripheral nervous system. It possibly functions as a calcium buffer, calcium sensor, and apoptosis regulator, which may be implicated in many biological processes, including cell proliferation, differentiation, and cell death. CR contains six EF-hand motifs within two independent domains, CR I-II and CR III-VI. CR I-II consists of EF-hand motifs 1 and 2, and CR III-VI consists of EF-hand motifs 3-6. The first 5 EF-hand motifs are capable of binding calcium ions, while the EF-hand 6 is inactive. Thus, CR has two pairs of cooperative binding sites (I-II and III-IV), which display high affinity calcium-binding sites, and one independent calcium ion-binding site (V), which displays lower affinity binding. Pssm-ID: 320077 [Multi-domain] Cd Length: 248 Bit Score: 46.41 E-value: 2.19e-05
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| CH_PLS3_rpt2 | cd21328 | second calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is ... |
511-620 | 2.79e-05 | |||||||||
second calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Plastin-3 contains four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409177 [Multi-domain] Cd Length: 122 Bit Score: 43.80 E-value: 2.79e-05
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| EFh | smart00054 | EF-hand, calcium binding motif; EF-hands are calcium-binding motifs that occur at least in ... |
56-83 | 2.94e-05 | |||||||||
EF-hand, calcium binding motif; EF-hands are calcium-binding motifs that occur at least in pairs. Links between disease states and genes encoding EF-hands, particularly the S100 subclass, are emerging. Each motif consists of a 12 residue loop flanked on either side by a 12 residue alpha-helix. EF-hands undergo a conformational change unpon binding calcium ions. Pssm-ID: 197492 [Multi-domain] Cd Length: 29 Bit Score: 41.21 E-value: 2.94e-05
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| CH_SYNE2_rpt1 | cd21242 | first calponin homology (CH) domain found in synaptic nuclear envelope protein 2; Synaptic ... |
392-500 | 3.38e-05 | |||||||||
first calponin homology (CH) domain found in synaptic nuclear envelope protein 2; Synaptic nuclear envelope protein 2 (SYNE-2), also called nesprin-2, KASH domain-containing protein 2 (KASH2), nuclear envelope spectrin repeat protein 2, nucleus and actin connecting element protein, or protein NUANCE, is a multi-isomeric modular protein which forms a linking network between organelles and the actin cytoskeleton to maintain subcellular spatial organization. SYNE-2 also acts as a component of the LINC (LInker of Nucleoskeleton and Cytoskeleton) complex, which is involved in the connection between the nuclear lamina and the cytoskeleton. SYNE-2 contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409091 Cd Length: 111 Bit Score: 43.28 E-value: 3.38e-05
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| CH_SPTBN1_rpt1 | cd21316 | first calponin homology (CH) domain found in spectrin beta chain, non-erythrocytic 1 (SPTBN1) ... |
392-502 | 3.74e-05 | |||||||||
first calponin homology (CH) domain found in spectrin beta chain, non-erythrocytic 1 (SPTBN1) and similar proteins; Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. SPTBN1, also called beta-II spectrin, fodrin beta chain, or spectrin, non-erythroid beta chain 1, is also a component of fodrin, which is the general spectrin-like protein that seems to be involved in secretion. Fodrin interacts with calmodulin in a calcium-dependent manner and is thus a candidate for the calcium-dependent movement of the cytoskeleton at the membrane. SPTBN1 contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409165 Cd Length: 154 Bit Score: 44.26 E-value: 3.74e-05
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| EFh_HEF_CB | cd16176 | EF-hand, calcium binding motif, found in calbindin (CB); CB, also termed calbindin D28, or ... |
10-80 | 3.87e-05 | |||||||||
EF-hand, calcium binding motif, found in calbindin (CB); CB, also termed calbindin D28, or D-28K, or avian-type vitamin D-dependent calcium-binding protein, is a unique intracellular calcium binding protein that functions as both a calcium sensor and buffer in eukaryotic cells, which undergoes a conformational change upon calcium binding and protects cells against insults of high intracellular calcium concentration. CB is highly expressed in brain and sensory neurons. It plays essential roles in neural functioning, altering synaptic interactions in the hippocampus, modulating calcium channel activity, calcium transients, and intrinsic neuronal firing activity. It prevents a neuronal death, as well as maintains and controls calcium homeostasis. CB also modulates the activity of proteins participating in the development of neurodegenerative disorders such as Alzheimer's disease, Huntington's disease, and bipolar disorder. Moreover, CB interacts with Ran-binding protein M, a protein known to involve in microtubule function. It also interacts with alkaline phosphatase and myo-inositol monophosphatase, as well as caspase 3, an enzyme that plays an important role in the regulation of apoptosis. CB contains six EF-hand motifs in a single globular domain, where EF-hands 1, 3, 4, 5 bind four calcium ions with high affinity. Pssm-ID: 320076 [Multi-domain] Cd Length: 243 Bit Score: 45.60 E-value: 3.87e-05
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| CH_PLS_FIM_rpt4 | cd21220 | fourth calponin homology (CH) domain found in the plastin/fimbrin family; This family includes ... |
269-372 | 4.04e-05 | |||||||||
fourth calponin homology (CH) domain found in the plastin/fimbrin family; This family includes plastin and fimbrin. Plastin has three isoforms, plastin-1, -2, and -3. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Fimbrin has been found in plants and fungi. Arabidopsis thaliana fimbrin (AtFIM) includes fimbrin-1, -2, -3, -4, and -5, which cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, probably involved in cell cycle, cell division, cell elongation and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Fungal fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the fourth CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409069 Cd Length: 105 Bit Score: 43.03 E-value: 4.04e-05
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| CH_LMO7-like | cd21208 | calponin homology (CH) domain found in LIM domain only protein 7 and similar proteins; This ... |
151-207 | 5.05e-05 | |||||||||
calponin homology (CH) domain found in LIM domain only protein 7 and similar proteins; This family includes LIM domain only protein 7 (LMO-7) and LIM and calponin homology domains-containing protein 1 (LIMCH1), and similar proteins. LMO-7, also called F-box only protein 20, or LOMP, is a transcription regulator for expression of many Emery-Dreifuss muscular dystrophy (EDMD)-relevant genes. It binds to alpha-actinin and AF6/afadin at adherens junctions for epithelial cell-cell adhesion. LIMCH1 acts as an actin stress fiber-associated protein that activates the non-muscle myosin IIa complex by promoting the phosphorylation of its regulatory subunit MRLC/MYL9. It positively regulates actin stress fiber assembly and stabilizes focal adhesions, and therefore negatively regulates cell spreading and cell migration. Members of this family contain a single copy of the CH domain at the N-terminus. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409057 [Multi-domain] Cd Length: 119 Bit Score: 43.10 E-value: 5.05e-05
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| CH_MACF1_rpt1 | cd21237 | first calponin homology (CH) domain found in microtubule-actin cross-linking factor 1, ... |
124-245 | 5.53e-05 | |||||||||
first calponin homology (CH) domain found in microtubule-actin cross-linking factor 1, isoforms 1/2/3/5 (MACF1) and similar proteins; MACF1, also called 620 kDa actin-binding protein (ABP620), actin cross-linking family protein 7 (ACF7), macrophin-1, or trabeculin-alpha, is a large protein containing numerous spectrin and leucine-rich repeat (LRR) domains. It facilitates actin-microtubule interactions at the cell periphery and couples the microtubule network to cellular junctions. MACF1 contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409086 Cd Length: 118 Bit Score: 43.10 E-value: 5.53e-05
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| EF-hand_1 | pfam00036 | EF hand; The EF-hands can be divided into two classes: signalling proteins and buffering ... |
55-83 | 5.58e-05 | |||||||||
EF hand; The EF-hands can be divided into two classes: signalling proteins and buffering/transport proteins. The first group is the largest and includes the most well-known members of the family such as calmodulin, troponin C and S100B. These proteins typically undergo a calcium-dependent conformational change which opens a target binding site. The latter group is represented by calbindin D9k and do not undergo calcium dependent conformational changes. Pssm-ID: 425435 [Multi-domain] Cd Length: 29 Bit Score: 40.46 E-value: 5.58e-05
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| CH_FLNB_rpt1 | cd21309 | first calponin homology (CH) domain found in filamin-B (FLN-B) and similar proteins; Filamin-B ... |
397-507 | 7.83e-05 | |||||||||
first calponin homology (CH) domain found in filamin-B (FLN-B) and similar proteins; Filamin-B (FLN-B) is also called ABP-278, ABP-280 homolog, actin-binding-like protein, beta-filamin, filamin homolog 1 (Fh1), filamin-3, thyroid autoantigen, truncated actin-binding protein, or truncated ABP. It connects cell membrane constituents to the actin cytoskeleton. It may promote orthogonal branching of actin filaments and links actin filaments to membrane glycoproteins. It anchors various transmembrane proteins to the actin cytoskeleton. FLN-B contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409158 Cd Length: 131 Bit Score: 42.76 E-value: 7.83e-05
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| CH_PLS_rpt4 | cd21301 | fourth calponin homology (CH) domain found in the plastin family; The plastin family includes ... |
272-371 | 8.69e-05 | |||||||||
fourth calponin homology (CH) domain found in the plastin family; The plastin family includes plastin-1, -2, and -3. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Members of this family contain four copies of the CH domain. This model corresponds to the fourth CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409150 Cd Length: 107 Bit Score: 41.88 E-value: 8.69e-05
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| S-100A10_like | cd05031 | S-100A10_like: S-100A10 domain found in proteins similar to S100A10. S100A10 is a member of ... |
27-80 | 9.19e-05 | |||||||||
S-100A10_like: S-100A10 domain found in proteins similar to S100A10. S100A10 is a member of the S100 family of EF-hand superfamily of calcium-binding proteins. Note that the S-100 hierarchy, to which this S-100A1_like group belongs, contains only S-100 EF-hand domains, other EF-hands have been modeled separately. S100 proteins are expressed exclusively in vertebrates, and are implicated in intracellular and extracellular regulatory activities. A unique feature of S100A10 is that it contains mutation in both of the calcium binding sites, making it calcium insensitive. S100A10 has been detected in brain, heart, gastrointestinal tract, kidney, liver, lung, spleen, testes, epidermis, aorta, and thymus. Structural data supports the homo- and hetero-dimeric as well as hetero-tetrameric nature of the protein. S100A10 has multiple binding partners in its calcium free state and is therefore involved in many diverse biological functions. Pssm-ID: 240157 [Multi-domain] Cd Length: 94 Bit Score: 41.64 E-value: 9.19e-05
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| CH_PLS2_rpt4 | cd21333 | fourth calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or ... |
269-371 | 9.47e-05 | |||||||||
fourth calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-2 contains four copies of the CH domain. This model corresponds to the fourth CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409182 Cd Length: 115 Bit Score: 42.28 E-value: 9.47e-05
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| CH_FLNA_rpt1 | cd21308 | first calponin homology (CH) domain found in filamin-A (FLN-A) and similar proteins; Filamin-A ... |
397-507 | 1.03e-04 | |||||||||
first calponin homology (CH) domain found in filamin-A (FLN-A) and similar proteins; Filamin-A (FLN-A) is also called actin-binding protein 280 (ABP-280), alpha-filamin, endothelial actin-binding protein, filamin-1, or non-muscle filamin. It promotes orthogonal branching of actin filaments and links actin filaments to membrane glycoproteins. It also anchors various transmembrane proteins to the actin cytoskeleton and serves as a scaffold for a wide range of cytoplasmic signaling proteins. FLN-A contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409157 Cd Length: 129 Bit Score: 42.38 E-value: 1.03e-04
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| CH_DMD_rpt1 | cd21231 | first calponin homology (CH) domain found in dystrophin and similar proteins; Dystrophin, ... |
124-234 | 1.08e-04 | |||||||||
first calponin homology (CH) domain found in dystrophin and similar proteins; Dystrophin, encoded by the DMD gene, is a large, submembrane cytoskeletal protein that is the main component of the dystrophin-glycoprotein complex (DGC) in skeletal muscles. It links the transmembrane DGC to the actin cytoskeleton through binding strongly to the cytoplasmic tail of beta-dystroglycan, the transmembrane subunit of a highly O-glycosylated cell-surface protein. It is involved in maintaining the structural integrity of cells, as well as in the formation of the blood-brain barrier (BBB). Mutations in dystrophin lead to Duchenne muscular dystrophy (DMD). Moreover, dystrophin deficiency is associated with abnormal cerebral diffusion and perfusion, as well as in acute Trypanosoma cruzi infection. The dystrophin subfamily has been characterized by a compact cluster of domains comprising four EF-hand-like motifs and a ZZ-domain, followed by a looser region with two coiled-coils. These domains are believed to be involved in protein-protein interactions. In addition, dystrophin contains two syntrophin binding sites (SBSs) and a long N-terminal extension that comprises two actin-binding calponin homology (CH) domains, approximately 24 spectrin repeats (SRs) and a WW domain. This model corresponds to the first CH domain. Pssm-ID: 409080 Cd Length: 111 Bit Score: 41.83 E-value: 1.08e-04
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| CH_SPTB-like_rpt1 | cd21246 | first calponin homology (CH) domain found in the beta-I spectrin-like subfamily; The beta-I ... |
121-234 | 1.19e-04 | |||||||||
first calponin homology (CH) domain found in the beta-I spectrin-like subfamily; The beta-I spectrin-like family includes beta-I, -II, -III and -IV spectrins. Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. Beta-I spectrin, also called spectrin beta chain, erythrocytic (SPTB), may be involved in anaemia pathogenesis. Beta-II spectrin, also called spectrin beta chain, non-erythrocytic 1 (SPTBN1), or fodrin beta chain, is a component of fodrin, which is the general spectrin-like protein that seems to be involved in secretion. Fodrin interacts with calmodulin in a calcium-dependent manner and is thus a candidate for the calcium-dependent movement of the cytoskeleton at the membrane. Beta-III spectrin, also called spectrin beta chain, non-erythrocytic 2 (SPTBN2), or spinocerebellar ataxia 5 protein (SCA5), may play a crucial role as a longer actin-membrane cross-linker or fulfill the need for greater extensible flexibility than can be provided by the other smaller conventional spectrins. Beta-IV spectrin is also called spectrin, non-erythroid beta chain 3 (SPTBN3) or spectrin beta chain, non-erythrocytic 4 (SPTBN4). Its mutation associates with congenital myopathy, neuropathy, and central deafness. Members of this subfamily contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409095 Cd Length: 117 Bit Score: 41.97 E-value: 1.19e-04
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| CH_FLNC_rpt1 | cd21310 | first calponin homology (CH) domain found in filamin-C (FLN-C) and similar proteins; Filamin-C ... |
397-507 | 1.23e-04 | |||||||||
first calponin homology (CH) domain found in filamin-C (FLN-C) and similar proteins; Filamin-C (FLN-C), also called FLNc, ABP-280-like protein, ABP-L, actin-binding-like protein, filamin-2, or gamma-filamin, is a muscle-specific filamin that plays a central role in muscle cells, probably by functioning as a large actin-cross-linking protein. It may be involved in reorganizing the actin cytoskeleton in response to signaling events, and may also display structural functions at the Z lines in muscle cells. FLN-C is critical for normal myogenesis and for maintaining the structural integrity of the muscle fibers. FLN-C contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409159 Cd Length: 125 Bit Score: 42.33 E-value: 1.23e-04
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| CH_CLMN_rpt1 | cd21191 | first calponin homology (CH) domain found in calmin and similar proteins; Calmin, also called ... |
124-234 | 1.44e-04 | |||||||||
first calponin homology (CH) domain found in calmin and similar proteins; Calmin, also called calponin-like transmembrane domain protein, is a protein with calponin homology (CH) and transmembrane domains expressed in maturing spermatogenic cells. It may be involved in the development and/or maintenance of neuronal functions. Calmin contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409040 Cd Length: 114 Bit Score: 41.80 E-value: 1.44e-04
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| CH_PLS1_rpt1 | cd21323 | first calponin homology (CH) domain found in plastin-1; Plastin-1, also called ... |
395-501 | 1.52e-04 | |||||||||
first calponin homology (CH) domain found in plastin-1; Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. It contains four copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409172 Cd Length: 145 Bit Score: 42.34 E-value: 1.52e-04
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| CH_AtKIN14-like | cd21203 | calponin homology (CH) domain found in Arabidopsis thaliana Kinesin-like KIN-14 protein family; ... |
127-179 | 1.61e-04 | |||||||||
calponin homology (CH) domain found in Arabidopsis thaliana Kinesin-like KIN-14 protein family; Kinesins are microtubule-dependent molecular motors that play important roles in intracellular transport and in cell division. This family includes a group of kinesin-like proteins belonging to KIN-14 protein family. They all contain a single copy of the CH domain at the N-terminus. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409052 [Multi-domain] Cd Length: 112 Bit Score: 41.63 E-value: 1.61e-04
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| CH_ACTN_rpt1 | cd21214 | first calponin homology (CH) domain found in the alpha-actinin family; The alpha-actinin (ACTN) ... |
123-234 | 1.63e-04 | |||||||||
first calponin homology (CH) domain found in the alpha-actinin family; The alpha-actinin (ACTN) family includes alpha-actinin-1, -2, -3, and -4. They are F-actin cross-linking proteins which are thought to anchor actin to a variety of intracellular structures. ACTN1 mutations cause congenital macrothrombocytopenia. ACTN2 mutations are associated with cardiomyopathies, as well as skeletal muscle disorder. ACTN3 is critical in anchoring the myofibrillar actin filaments and plays a key role in muscle contraction. ACTN4 is associated with cell motility and cancer invasion. It is probably involved in vesicular trafficking via its association with the CART complex, which is necessary for efficient transferrin receptor recycling but not for epidermal growth factor receptor (EGFR) degradation. Members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409063 Cd Length: 105 Bit Score: 41.22 E-value: 1.63e-04
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| CH_PLS3_rpt3 | cd21331 | third calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is ... |
124-235 | 2.00e-04 | |||||||||
third calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Plastin-3 contains four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409180 Cd Length: 134 Bit Score: 41.91 E-value: 2.00e-04
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| CH_SPTBN4_rpt1 | cd21318 | first calponin homology (CH) domain found in spectrin beta chain, non-erythrocytic 4 (SPTBN4) ... |
124-234 | 2.14e-04 | |||||||||
first calponin homology (CH) domain found in spectrin beta chain, non-erythrocytic 4 (SPTBN4) and similar proteins; Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. SPTBN4, also called beta-IV spectrin, or spectrin, non-erythroid beta chain 3 (SPTBN3), is a novel spectrin isolated as an interactor of the receptor tyrosine phosphatase-like protein ICA512. Its mutation associates with congenital myopathy, neuropathy, and central deafness. SPTBN4 contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409167 Cd Length: 139 Bit Score: 41.93 E-value: 2.14e-04
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| CH_dFLNA-like_rpt2 | cd21315 | second calponin homology (CH) domain found in Drosophila melanogaster filamin-A (dFLNA) and ... |
267-364 | 2.31e-04 | |||||||||
second calponin homology (CH) domain found in Drosophila melanogaster filamin-A (dFLNA) and similar proteins; Drosophila melanogaster filamin-A (dFLNA or dFLN-A), also called actin-binding protein 280 (ABP-280) or filamin-1, is involved in germline ring canal formation. It may tether actin microfilaments within the ovarian ring canal to the cell membrane and contributes to actin microfilament organization. dFLNA contains two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409164 Cd Length: 118 Bit Score: 41.31 E-value: 2.31e-04
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| CH_FLNA_rpt2 | cd21312 | second calponin homology (CH) domain found in filamin-A (FLN-A) and similar proteins; ... |
267-376 | 2.58e-04 | |||||||||
second calponin homology (CH) domain found in filamin-A (FLN-A) and similar proteins; Filamin-A (FLN-A) is also called actin-binding protein 280 (ABP-280), alpha-filamin, endothelial actin-binding protein, filamin-1, or non-muscle filamin. It promotes orthogonal branching of actin filaments and links actin filaments to membrane glycoproteins. It also anchors various transmembrane proteins to the actin cytoskeleton and serves as a scaffold for a wide range of cytoplasmic signaling proteins. FLN-A contains two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409161 Cd Length: 114 Bit Score: 40.94 E-value: 2.58e-04
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| EFh_HEF | cd15902 | EF-hand, calcium binding motif, found in the hexa-EF hand proteins family; The hexa-EF hand ... |
14-80 | 2.61e-04 | |||||||||
EF-hand, calcium binding motif, found in the hexa-EF hand proteins family; The hexa-EF hand proteins family, also named the calbindin sub-family, contains a group of six EF-hand Ca2+-binding proteins, including calretinin (CR, also termed 29 kDa calbindin), calbindin D28K (CB, also termed vitamin D-dependent calcium-binding protein, avian-type), and secretagogin (SCGN). CR is a cytosolic hexa-EF-hand calcium-binding protein predominantly expressed in a variety of normal and tumorigenic t-specific neurons of the central and peripheral nervous system. It is a multifunctional protein implicated in many biological processes, including cell proliferation, differentiation, and cell death. CB is highly expressed in brain tissue. It is a strong calcium-binding and buffering protein responsible for preventing a neuronal death as well as maintaining and controlling calcium homeostasis. SCGN is a six EF-hand calcium-binding protein expressed in neuroendocrine, pancreatic endocrine and retinal cells. It plays a crucial role in cell apoptosis, receptor signaling and differentiation. It is also involved in vesicle secretion through binding to various proteins, including interacts with SNAP25, SNAP23, DOC2alpha, ARFGAP2, rootletin, KIF5B, beta-tubulin, DDAH-2, ATP-synthase and myeloid leukemia factor 2. SCGN functions as a Ca2+ sensor/coincidence detector modulating vesicular exocytosis of neurotransmitters, neuropeptides or hormones. Although the family members share a significant amount of secondary sequence homology, they display altered structural and biochemical characteristics, and operate in distinct fashions. CB contains six EF-hand motifs in a single globular domain, where EF-hands 1, 3, 4, 5 bind four calcium ions. CR contains six EF-hand motifs within two independent domains, CR I-II and CR III-VI. They harbor two and four EF-hand motifs, respectively. The first 5 EF-hand motifs are capable of binding calcium ions, while the EF-hand 6 is inactive. SCGN consists of the three globular domains each of which contains a pair of EF-hand motifs. Human SCGN simultaneously binds four calcium ions through its EF-hands 3, 4, 5 and 6 in one high affinity and three low affinity calcium-binding sites. In contrast, SCGNs in other lower eukaryotes, such as D. rerio, X. laevis, M. domestica, G. gallus, O. anatinus, are fully competent in terms of six calcium-binding. Pssm-ID: 320075 [Multi-domain] Cd Length: 254 Bit Score: 43.11 E-value: 2.61e-04
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| CH_FIMB_rpt2 | cd21297 | second calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar ... |
519-620 | 2.64e-04 | |||||||||
second calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar proteins; Fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409146 Cd Length: 109 Bit Score: 40.62 E-value: 2.64e-04
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| EFh_CREC_cab45 | cd16225 | EF-hand, calcium binding motif, found in 45 kDa calcium-binding protein (Cab45); Cab45, also ... |
11-111 | 2.91e-04 | |||||||||
EF-hand, calcium binding motif, found in 45 kDa calcium-binding protein (Cab45); Cab45, also termed stromal cell-derived factor 4 (SDF-4), is a soluble, lumenal Golgi resident low-affinity Ca2+-binding protein that contains six copies of the EF-hand Ca2+-binding motif. It is required for secretory pathway calcium ATPase1 (SPCA1)-dependent Ca2+ import into the trans-Golgi network (TGN) and plays an essential role in Ca2+-dependent secretory cargo sorting at the TGN. Pssm-ID: 320023 [Multi-domain] Cd Length: 278 Bit Score: 43.06 E-value: 2.91e-04
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| CH_FLN_rpt2 | cd21230 | second calponin homology (CH) domain found in filamins; The filamin family includes filamin-A ... |
267-362 | 3.41e-04 | |||||||||
second calponin homology (CH) domain found in filamins; The filamin family includes filamin-A (FLN-A), filamin-B (FLN-B) and filamin-C (FLN-C). Filamins function to anchor various transmembrane proteins to the actin cytoskeleton. FLN-A is also called actin-binding protein 280 (ABP-280), alpha-filamin, endothelial actin-binding protein, filamin-1, or non-muscle filamin. It promotes orthogonal branching of actin filaments and links actin filaments to membrane glycoproteins. It also serves as a scaffold for a wide range of cytoplasmic signaling proteins. FLN-B is also called ABP-278, ABP-280 homolog, actin-binding-like protein, beta-filamin, filamin homolog 1 (Fh1), filamin-3, thyroid autoantigen, truncated actin-binding protein, or truncated ABP. It connects cell membrane constituents to the actin cytoskeleton and may also promote orthogonal branching of actin filaments as well as link actin filaments to membrane glycoproteins. FLN-C, also called FLNc, ABP-280-like protein, ABP-L, actin-binding-like protein, filamin-2, or gamma-filamin, is a muscle-specific filamin that plays a central role in muscle cells, probably by functioning as a large actin-cross-linking protein. It may be involved in reorganizing the actin cytoskeleton in response to signaling events, and may also display structural functions at the Z lines in muscle cells. FLN-C is critical for normal myogenesis and for maintaining the structural integrity of the muscle fibers. Members of this family contain two copies of the CH domain. The model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409079 Cd Length: 103 Bit Score: 40.44 E-value: 3.41e-04
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| EFh_parvalbumin_alpha | cd16254 | EF-hand, calcium binding motif, found in alpha-parvalbumin; Alpha-parvalbumin is cytosolic Ca2 ... |
13-82 | 3.80e-04 | |||||||||
EF-hand, calcium binding motif, found in alpha-parvalbumin; Alpha-parvalbumin is cytosolic Ca2+/Mg2+-binding protein expressed mainly in fast-twitch skeletal myofibrils, where it may act as a soluble relaxing factor facilitating the Ca2+-mediated relaxation phase. It is also expressed in rapidly firing neurons, particularly GABA-ergic neurons, and thus may confer protection against Ca2+ toxicity. The major role of alpha-parvalbumin is metal buffering and transport of Ca2+. It binds different metal cations, and exhibits very high affinity for Ca2+ and physiologically significant affinity for Mg2+. Alpha-parvalbumin is characterized by the presence of three consecutive EF-hand motifs (helix-loop-helix) called AB, CD, and EF, but only CD and EF can chelate metal ions, such as Ca2+ and Mg2+. Both metal ion-binding sites in alpha-parvalbumin are high-affinity sites. Additionally, in contrast to beta-parvalbumin, alpha-parvalbumin is less acidic and has an additional residue in the C-terminal helix. Pssm-ID: 319997 [Multi-domain] Cd Length: 101 Bit Score: 40.19 E-value: 3.80e-04
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| EFh_PEF_Group_I | cd16180 | Penta-EF hand, calcium binding motifs, found in Group I PEF proteins; The family corresponds ... |
15-85 | 3.98e-04 | |||||||||
Penta-EF hand, calcium binding motifs, found in Group I PEF proteins; The family corresponds to Group I PEF proteins that have been found not only in higher animals but also in lower animals, plants, fungi and protists. Group I PEF proteins include apoptosis-linked gene 2 protein (ALG-2), peflin and similar proteins. ALG-2, also termed programmed cell death protein 6 (PDCD6), is a widely expressed calcium-binding modulator protein associated with cell proliferation and death, as well as cell survival. It forms a homodimer in the cell or a heterodimer with its closest paralog peflin. Among the PEF proteins, ALG-2 can bind three Ca2+ ions through its EF1, EF3, and EF5 hands, where it is unique in that its EF5 hand binds Ca2+ ion in a canonical coordination. Peflin is a ubiquitously expressed 30-kD PEF protein containing five EF-hand motifs in its C-terminal domain and a longer N-terminal hydrophobic domain (NHB domain) than any other member of the PEF family. The NHB domain harbors nine repeats of a nonapeptide (A/PPGGPYGGP). Peflin may modulate the function of ALG-2 in Ca2+ signaling. It exists only as a heterodimer with ALG-2, and binds two Ca2+ ions through its EF1 and EF3 hands. Its additional EF5 hand is unpaired and does not bind Ca2+ ion but mediates the heterodimerization with ALG-2. The dissociation of heterodimer occurs in the presence of Ca2+. Pssm-ID: 320055 [Multi-domain] Cd Length: 164 Bit Score: 41.36 E-value: 3.98e-04
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| CH_DMD_rpt1 | cd21231 | first calponin homology (CH) domain found in dystrophin and similar proteins; Dystrophin, ... |
392-500 | 4.22e-04 | |||||||||
first calponin homology (CH) domain found in dystrophin and similar proteins; Dystrophin, encoded by the DMD gene, is a large, submembrane cytoskeletal protein that is the main component of the dystrophin-glycoprotein complex (DGC) in skeletal muscles. It links the transmembrane DGC to the actin cytoskeleton through binding strongly to the cytoplasmic tail of beta-dystroglycan, the transmembrane subunit of a highly O-glycosylated cell-surface protein. It is involved in maintaining the structural integrity of cells, as well as in the formation of the blood-brain barrier (BBB). Mutations in dystrophin lead to Duchenne muscular dystrophy (DMD). Moreover, dystrophin deficiency is associated with abnormal cerebral diffusion and perfusion, as well as in acute Trypanosoma cruzi infection. The dystrophin subfamily has been characterized by a compact cluster of domains comprising four EF-hand-like motifs and a ZZ-domain, followed by a looser region with two coiled-coils. These domains are believed to be involved in protein-protein interactions. In addition, dystrophin contains two syntrophin binding sites (SBSs) and a long N-terminal extension that comprises two actin-binding calponin homology (CH) domains, approximately 24 spectrin repeats (SRs) and a WW domain. This model corresponds to the first CH domain. Pssm-ID: 409080 Cd Length: 111 Bit Score: 40.29 E-value: 4.22e-04
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| CH_FLN_rpt1 | cd21228 | first calponin homology (CH) domain found in filamins; The filamin family includes filamin-A ... |
128-234 | 6.26e-04 | |||||||||
first calponin homology (CH) domain found in filamins; The filamin family includes filamin-A (FLN-A), filamin-B (FLN-B) and filamin-C (FLN-C). Filamins function to anchor various transmembrane proteins to the actin cytoskeleton. FLN-A is also called actin-binding protein 280 (ABP-280), alpha-filamin, endothelial actin-binding protein, filamin-1, or non-muscle filamin. It promotes orthogonal branching of actin filaments and links actin filaments to membrane glycoproteins. It also serves as a scaffold for a wide range of cytoplasmic signaling proteins. FLN-B is also called ABP-278, ABP-280 homolog, actin-binding-like protein, beta-filamin, filamin homolog 1 (Fh1), filamin-3, thyroid autoantigen, truncated actin-binding protein, or truncated ABP. It connects cell membrane constituents to the actin cytoskeleton and may also promote orthogonal branching of actin filaments as well as link actin filaments to membrane glycoproteins. FLN-C, also called FLNc, ABP-280-like protein, ABP-L, actin-binding-like protein, filamin-2, or gamma-filamin, is a muscle-specific filamin that plays a central role in muscle cells, probably by functioning as a large actin-cross-linking protein. It may be involved in reorganizing the actin cytoskeleton in response to signaling events, and may also display structural functions at the Z lines in muscle cells. FLN-C is critical for normal myogenesis and for maintaining the structural integrity of the muscle fibers. Members of this family contain two copies of the CH domain. The model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409077 Cd Length: 108 Bit Score: 39.78 E-value: 6.26e-04
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| CH_FLNB_rpt2 | cd21313 | second calponin homology (CH) domain found in filamin-B (FLN-B) and similar proteins; ... |
267-376 | 6.45e-04 | |||||||||
second calponin homology (CH) domain found in filamin-B (FLN-B) and similar proteins; Filamin-B (FLN-B) is also called ABP-278, ABP-280 homolog, actin-binding-like protein, beta-filamin, filamin homolog 1 (Fh1), filamin-3, thyroid autoantigen, truncated actin-binding protein, or truncated ABP. It connects cell membrane constituents to the actin cytoskeleton. It may promote orthogonal branching of actin filaments and links actin filaments to membrane glycoproteins. It anchors various transmembrane proteins to the actin cytoskeleton. FLN-B contains two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409162 Cd Length: 110 Bit Score: 39.69 E-value: 6.45e-04
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| CH_PLS2_rpt2 | cd21327 | second calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or ... |
511-623 | 6.69e-04 | |||||||||
second calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-2 contaisn four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409176 Cd Length: 125 Bit Score: 39.94 E-value: 6.69e-04
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| CH_FLNC_rpt2 | cd21314 | second calponin homology (CH) domain found in filamin-C (FLN-C) and similar proteins; ... |
267-376 | 7.53e-04 | |||||||||
second calponin homology (CH) domain found in filamin-C (FLN-C) and similar proteins; Filamin-C (FLN-C), also called FLNc, ABP-280-like protein, ABP-L, actin-binding-like protein, filamin-2, or gamma-filamin, is a muscle-specific filamin that plays a central role in muscle cells, probably by functioning as a large actin-cross-linking protein. It may be involved in reorganizing the actin cytoskeleton in response to signaling events, and may also display structural functions at the Z lines in muscle cells. FLN-C is critical for normal myogenesis and for maintaining the structural integrity of the muscle fibers. FLN-C contains two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409163 Cd Length: 115 Bit Score: 39.67 E-value: 7.53e-04
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| S-100A1 | cd05025 | S-100A1: S-100A1 domain found in proteins similar to S100A1. S100A1 is a calcium-binding ... |
31-83 | 7.96e-04 | |||||||||
S-100A1: S-100A1 domain found in proteins similar to S100A1. S100A1 is a calcium-binding protein belonging to a large S100 vertebrate-specific protein family within the EF-hand superfamily of calcium-binding proteins. Note that the S-100 hierarchy, to which this S-100A1 group belongs, contains only S-100 EF-hand domains, other EF-hands have been modeled separately. As is the case with many other members of S100 protein family, S100A1 is implicated in intracellular and extracellular regulatory activities, including interaction with myosin-associated twitchin kinase, actin-capping protein CapZ, sinapsin I, and tubulin. Structural data suggests that S100A1 proteins exist within cells as antiparallel homodimers, while heterodimers with S100A4 and S100B also has been reported. Upon binding calcium S100A1 changes conformation to expose a hydrophobic cleft which is the interaction site of S100A1 with its more that 20 known target proteins. Pssm-ID: 240152 [Multi-domain] Cd Length: 92 Bit Score: 39.10 E-value: 7.96e-04
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| CH_CLMN_rpt1 | cd21191 | first calponin homology (CH) domain found in calmin and similar proteins; Calmin, also called ... |
392-500 | 7.99e-04 | |||||||||
first calponin homology (CH) domain found in calmin and similar proteins; Calmin, also called calponin-like transmembrane domain protein, is a protein with calponin homology (CH) and transmembrane domains expressed in maturing spermatogenic cells. It may be involved in the development and/or maintenance of neuronal functions. Calmin contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409040 Cd Length: 114 Bit Score: 39.48 E-value: 7.99e-04
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| CH_PLS1_rpt4 | cd21332 | fourth calponin homology (CH) domain found in plastin-1; Plastin-1, also called ... |
269-371 | 8.36e-04 | |||||||||
fourth calponin homology (CH) domain found in plastin-1; Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. It contains four copies of the CH domain. This model corresponds to the fourth CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409181 Cd Length: 115 Bit Score: 39.55 E-value: 8.36e-04
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| CH_SYNE1_rpt1 | cd21241 | first calponin homology (CH) domain found in synaptic nuclear envelope protein 1 and similar ... |
392-503 | 8.52e-04 | |||||||||
first calponin homology (CH) domain found in synaptic nuclear envelope protein 1 and similar proteins; Synaptic nuclear envelope protein 1 (SYNE-1), also called nesprin-1, enaptin, KASH domain-containing protein 1 (KASH1), myocyte nuclear envelope protein 1 (MYNE-1), or nuclear envelope spectrin repeat protein 1, is a multi-isomeric modular protein which forms a linking network between organelles and the actin cytoskeleton to maintain subcellular spatial organization. SYNE-1 also acts as a component of the LINC (LInker of Nucleoskeleton and Cytoskeleton) complex, which is involved in the connection between the nuclear lamina and the cytoskeleton. SYNE-1 contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409090 Cd Length: 113 Bit Score: 39.28 E-value: 8.52e-04
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| CH_UTRN_rpt1 | cd21232 | first calponin homology (CH) domain found in utrophin and similar proteins; Utrophin, also ... |
397-500 | 8.60e-04 | |||||||||
first calponin homology (CH) domain found in utrophin and similar proteins; Utrophin, also called dystrophin-related protein 1 (DRP-1), is an autosomal dystrophin homolog that increases dystrophic muscle function and reduces pathology. It is broadly expressed in both the mRNA and protein levels, and occurs in the cerebrovascular endothelium. Utrophin forms the utrophin-glycoprotein complex (UGC) by interacting with dystroglycans (DGs) and sarcoglycan-dystroglycans, as well as sarcoglycan and sarcospan (SG-SSPN) subcomplexes. It may act as a scaffolding protein that stabilizes lipid microdomains and clusters mechanosensitive channel subunits, and link the F-actin cytoskeleton to the cell membrane via the associated glycoprotein complex. Like dystrophin, utrophin has a compact cluster of domains comprising four EF-hand-like motifs and a ZZ-domain, followed by a looser region with two coiled-coils. These domains are believed to be involved in protein-protein interactions. In addition, it contains two syntrophin binding sites (SBSs) and a long N-terminal extension that comprises two actin-binding calponin homology (CH) domains, up to 24 spectrin repeats (SRs), and a WW domain. However, utrophin lacks the intrinsic microtubule binding activity of dystrophin SRs. This model corresponds to the first CH domain. Pssm-ID: 409081 Cd Length: 107 Bit Score: 39.22 E-value: 8.60e-04
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| EFh | smart00054 | EF-hand, calcium binding motif; EF-hands are calcium-binding motifs that occur at least in ... |
15-42 | 8.86e-04 | |||||||||
EF-hand, calcium binding motif; EF-hands are calcium-binding motifs that occur at least in pairs. Links between disease states and genes encoding EF-hands, particularly the S100 subclass, are emerging. Each motif consists of a 12 residue loop flanked on either side by a 12 residue alpha-helix. EF-hands undergo a conformational change unpon binding calcium ions. Pssm-ID: 197492 [Multi-domain] Cd Length: 29 Bit Score: 36.97 E-value: 8.86e-04
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| EF-hand_8 | pfam13833 | EF-hand domain pair; |
8-83 | 9.31e-04 | |||||||||
EF-hand domain pair; Pssm-ID: 404678 [Multi-domain] Cd Length: 54 Bit Score: 37.68 E-value: 9.31e-04
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| EFh_CREC_RCN2_like | cd16227 | EF-hand, calcium binding motif, found in reticulocalbin-2 (RCN2) mainly from protostomes; This ... |
1-87 | 9.35e-04 | |||||||||
EF-hand, calcium binding motif, found in reticulocalbin-2 (RCN2) mainly from protostomes; This family corresponds to a group of uncharacterized RCN2-like proteins, which are mainly found in protostomes. Although their biological function remains unclear, they show high sequence similarity with RCN2 (also known as E6BP or TCBP-49), which is an endoplasmic reticulum resident low-affinity Ca2+-binding protein that has been implicated in immunity, redox homeostasis, cell cycle regulation and coagulation. Members in this family contain six copies of the EF-hand Ca2+-binding motif, but may lack a C-terminal His-Asp-Glu-Leu (HDEL) tetrapeptide that is required for retention of RCN2 in the endoplasmic reticulum (ER). Pssm-ID: 320025 [Multi-domain] Cd Length: 263 Bit Score: 41.53 E-value: 9.35e-04
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| EFh_PEF | cd15897 | The penta-EF hand (PEF) family; The penta-EF hand (PEF) family contains a group of five ... |
15-92 | 1.16e-03 | |||||||||
The penta-EF hand (PEF) family; The penta-EF hand (PEF) family contains a group of five EF-hand calcium-binding proteins, including several classical calpain large catalytic subunits (CAPN1, 2, 3, 8, 9, 11, 12, 13, 14), two calpain small subunits (CAPNS1 and CAPNS2), as well as non-calpain PEF proteins, ALG-2 (apoptosis-linked gene 2, also termed programmed cell death protein 6, PDCD6), peflin, sorcin, and grancalcin. Based on the sequence similarity of EF1 hand, ALG-2 and peflin have been classified into group I PEF proteins. Calcium-dependent protease calpain subfamily members, sorcin and grancalcin, are group II PEF proteins. Calpains (EC 3.4.22.17) are calcium-activated intracellular cysteine proteases that play important roles in the degradation or functional modulation in a variety of substrates. They have been implicated in a number of physiological processes such as cell cycle progression, remodeling of cytoskeletal-cell membrane attachments, signal transduction, gene expression and apoptosis. ALG-2 is a pro-apoptotic factor that forms a homodimer in the cell or a heterodimer with its closest paralog peflin through their EF5s. Peflin is a 30-kD PEF protein with a longer N-terminal hydrophobic domain than any other member of the PEF family, and it contains nine nonapeptide (A/PPGGPYGGP) repeats. It exists only as a heterodimer with ALG-2. The dissociation of heterodimer occurs in the presence of Ca2+. ALG-2 interacts with various proteins in a Ca2+-dependent manner. Sorcin (for soluble resistance-related calcium binding protein) is a soluble resistance-related calcium-binding protein that participates in the regulation of calcium homeostasis in cells. Grancalcin is a cytosolic Ca2+-binding protein specifically expressed in neutrophils and monocytes/macrophages. It plays a key role in leukocyte-specific functions that are responsible for host defense. Grancalcin can form a heterodimer together with sorcin. Members in this family contain five EF-hand motifs attached to an N-terminal region of variable length containing one or more short Gly/Pro-rich sequences. These proteins form homodimers or heterodimers through pairing between the 5th EF-hands from the two molecules. Unlike calmodulin, the PEF domains do not undergo major conformational changes upon binding Ca2+. Pssm-ID: 320054 [Multi-domain] Cd Length: 165 Bit Score: 40.11 E-value: 1.16e-03
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| CH_SF | cd00014 | calponin homology (CH) domain superfamily; CH domains are actin filament (F-actin) binding ... |
269-373 | 1.27e-03 | |||||||||
calponin homology (CH) domain superfamily; CH domains are actin filament (F-actin) binding motifs, which may be present as a single copy or in tandem repeats (which increase binding affinity). They either function as autonomous actin binding motifs or serve a regulatory function. CH domains are found in cytoskeletal and signal transduction proteins, including actin-binding proteins like spectrin, alpha-actinin, dystrophin, utrophin, and fimbrin, as well as proteins essential for regulation of cell shape (cortexillins), and signaling proteins (Vav). Pssm-ID: 409031 [Multi-domain] Cd Length: 103 Bit Score: 38.47 E-value: 1.27e-03
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| CH_PLS_rpt2 | cd21295 | second calponin homology (CH) domain found in the family of plastin; The plastin family ... |
513-620 | 1.29e-03 | |||||||||
second calponin homology (CH) domain found in the family of plastin; The plastin family includes plastin-1, -2, and -3. Plastin-1, also called intestine-specific plastin, or I-plastin, is an actin-bundling protein in the absence of calcium. Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Members of this family contain four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409144 Cd Length: 113 Bit Score: 38.79 E-value: 1.29e-03
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| CH_dMP20-like | cd21207 | calponin homology (CH) domain found in Drosophila melanogaster muscle-specific protein 20 ... |
150-222 | 1.44e-03 | |||||||||
calponin homology (CH) domain found in Drosophila melanogaster muscle-specific protein 20 (dMP20) and similar domains; This subfamily contains Drosophila melanogaster muscle-specific protein 20 (dMP20), Echinococcus granulosus myophilin, Dictyostelium discoideum Rac guanine nucleotide exchange factor B (also called Trix), and similar proteins. dMP20 is present only in the synchronous muscles of D. melanogaster. It may be involved in the system linking the nerve impulse with the contraction or the relaxation process. Trix is involved in the regulation of the late steps of the endocytic pathway. dMP20 contains a single copy of the CH domain, while Trix (triple CH-domain array exchange factor) contains three, two type 3 CH domains which are included in this model, and one type 1 CH domain that is not included in this subfamily, but is part of the superfamily. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409056 [Multi-domain] Cd Length: 107 Bit Score: 38.45 E-value: 1.44e-03
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| CH_dFLNA-like_rpt1 | cd21311 | first calponin homology (CH) domain found in Drosophila melanogaster filamin-A (dFLNA) and ... |
124-234 | 1.50e-03 | |||||||||
first calponin homology (CH) domain found in Drosophila melanogaster filamin-A (dFLNA) and similar proteins; Drosophila melanogaster filamin-A (dFLNA or dFLN-A), also called actin-binding protein 280 (ABP-280) or filamin-1, is involved in germline ring canal formation. It may tether actin microfilaments within the ovarian ring canal to the cell membrane and contributes to actin microfilament organization. dFLNA contains two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409160 Cd Length: 124 Bit Score: 38.97 E-value: 1.50e-03
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| EFh_PRIP | cd16206 | EF-hand motif found in phospholipase C-related but catalytically inactive proteins (PRIP); ... |
16-83 | 1.68e-03 | |||||||||
EF-hand motif found in phospholipase C-related but catalytically inactive proteins (PRIP); This family represents a class of metazoan phospholipase C related, but catalytically inactive proteins (PRIP), which belong to a group of novel inositol 1,4,5-trisphosphate (InsP3) binding protein. PRIP has a primary structure and domain architecture, incorporating a pleckstrin homology (PH) domain, four atypical EF-hand motifs, a PLC catalytic core domain with highly conserved X- and Y-regions split by a linker sequence, and a C-terminal C2 domain, similar to phosphoinositide-specific phospholipases C (PI-PLC, EC 3.1.4.11)-delta isoforms. Due to replacement of critical catalytic residues, PRIP do not have PLC enzymatic activity. PRIP consists of two subfamilies, PRIP-1(also known as p130 or PLC-L1), which is predominantly expressed in the brain, and PRIP-2 (also known as PLC-L2), which exhibits a relatively ubiquitous expression. Experiments show both, PRIP-1 and PRIP-2, are involved in InsP3-mediated calcium signaling pathway and GABA(A)receptor-mediated signaling pathway. In addition, PRIP-2 acts as a negative regulator of B-cell receptor signaling and immune responses. Pssm-ID: 320036 [Multi-domain] Cd Length: 143 Bit Score: 39.12 E-value: 1.68e-03
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| EF-hand_6 | pfam13405 | EF-hand domain; |
15-41 | 1.72e-03 | |||||||||
EF-hand domain; Pssm-ID: 463869 [Multi-domain] Cd Length: 30 Bit Score: 36.00 E-value: 1.72e-03
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| CH_PLS3_rpt4 | cd21334 | fourth calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is ... |
269-371 | 2.00e-03 | |||||||||
fourth calponin homology (CH) domain found in plastin-3; Plastin-3, also called T-plastin, is an actin-bundling protein found in intestinal microvilli, hair cell stereocilia, and fibroblast filopodia. It may play a role in the regulation of bone development. Plastin-3 contains four copies of the CH domain. This model corresponds to the fourth CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409183 Cd Length: 112 Bit Score: 38.33 E-value: 2.00e-03
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| PTZ00184 | PTZ00184 | calmodulin; Provisional |
8-87 | 2.26e-03 | |||||||||
calmodulin; Provisional Pssm-ID: 185504 [Multi-domain] Cd Length: 149 Bit Score: 38.97 E-value: 2.26e-03
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| CH_NAV2-like | cd21212 | calponin homology (CH) domain found in neuron navigator (NAV) 2, NAV3, and similar proteins; ... |
124-233 | 2.29e-03 | |||||||||
calponin homology (CH) domain found in neuron navigator (NAV) 2, NAV3, and similar proteins; This family includes neuron navigator 2 (NAV2) and NAV3, both of which contain a single copy of the CH domain at the N-terminus. CH domains are actin filament (F-actin) binding motifs. NAV2, also called helicase APC down-regulated 1 (HELAD1), pore membrane and/or filament-interacting-like protein 2 (POMFIL2), retinoic acid inducible in neuroblastoma 1 (RAINB1), Steerin-2 (STEERIN2), or Unc-53 homolog 2 (unc53H2), possesses 3' to 5' helicase activity and exonuclease activity. It is involved in neuronal development, specifically in the development of different sensory organs. NAV3, also called pore membrane and/or filament-interacting-like protein 1 (POMFIL1), Steerin-3 (STEERIN3), or Unc-53 homolog 3 (unc53H3), may regulate IL2 production by T-cells. It may be involved in neuron regeneration. Pssm-ID: 409061 Cd Length: 105 Bit Score: 37.95 E-value: 2.29e-03
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| CH_DMD-like_rpt1 | cd21186 | first calponin homology (CH) domain found in the dystrophin family; The dystrophin family ... |
124-234 | 2.29e-03 | |||||||||
first calponin homology (CH) domain found in the dystrophin family; The dystrophin family includes dystrophin and its paralog, utrophin. Dystrophin, encoded by the DMD gene, is a large, submembrane cytoskeletal protein that is the main component of the dystrophin-glycoprotein complex (DGC) in skeletal muscles. It links the transmembrane DGC to the actin cytoskeleton through binding strongly to the cytoplasmic tail of beta-dystroglycan, the transmembrane subunit of a highly O-glycosylated cell-surface protein. Dystrophin is also involved in maintaining the structural integrity of cells, as well as in the formation of the blood-brain barrier (BBB). Utrophin, also called dystrophin-related protein 1 (DRP-1), is an autosomal dystrophin homolog that increases dystrophic muscle function and reduces pathology. It is broadly expressed in both the mRNA and protein levels, and occurs in the cerebrovascular endothelium. Utrophin forms the utrophin-glycoprotein complex (UGC) by interacting with dystroglycans (DGs) and sarcoglycan-dystroglycans, as well as sarcoglycan and sarcospan (SG-SSPN) subcomplexes. It may act as a scaffolding protein that stabilizes lipid microdomains and clusters mechanosensitive channel subunits, and links the F-actin cytoskeleton to the cell membrane via the associated glycoprotein complex. Members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409035 Cd Length: 107 Bit Score: 38.13 E-value: 2.29e-03
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| EF-hand_1 | pfam00036 | EF hand; The EF-hands can be divided into two classes: signalling proteins and buffering ... |
15-42 | 2.62e-03 | |||||||||
EF hand; The EF-hands can be divided into two classes: signalling proteins and buffering/transport proteins. The first group is the largest and includes the most well-known members of the family such as calmodulin, troponin C and S100B. These proteins typically undergo a calcium-dependent conformational change which opens a target binding site. The latter group is represented by calbindin D9k and do not undergo calcium dependent conformational changes. Pssm-ID: 425435 [Multi-domain] Cd Length: 29 Bit Score: 35.45 E-value: 2.62e-03
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| CH_PLS2_rpt3 | cd21330 | third calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or ... |
124-235 | 3.63e-03 | |||||||||
third calponin homology (CH) domain found in plastin-2; Plastin-2, also called L-plastin, or LC64P, or lymphocyte cytosolic protein 1 (LCP-1), is an actin-binding protein that plays a role in the activation of T-cells in response to costimulation through TCR/CD3 and CD2 or CD28. It modulates the cell surface expression of IL2RA/CD25 and CD69. Plastin-2 contains four copies of the CH domain. This model corresponds to the third CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409179 Cd Length: 125 Bit Score: 38.05 E-value: 3.63e-03
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| CH_NAV3 | cd21286 | calponin homology (CH) domain found in neuron navigator 3; Neuron navigator 3 (NAV3), also ... |
128-233 | 3.73e-03 | |||||||||
calponin homology (CH) domain found in neuron navigator 3; Neuron navigator 3 (NAV3), also called pore membrane and/or filament-interacting-like protein 1 (POMFIL1), Steerin-3 (STEERIN3), or Unc-53 homolog 3 (unc53H3), may regulate IL2 production by T-cells. It may be involved in neuron regeneration. NAV3 contains a single copy of the CH domain at the N-terminus. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409135 Cd Length: 105 Bit Score: 37.32 E-value: 3.73e-03
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| EFh_PEF_CAPN1_like | cd16189 | Penta-EF hand, calcium binding motifs, found in mu-type calpain (CAPN1), m-type calpain (CAPN2) ... |
13-78 | 3.83e-03 | |||||||||
Penta-EF hand, calcium binding motifs, found in mu-type calpain (CAPN1), m-type calpain (CAPN2), and similar proteins; The family includes mu-type calpain (CAPN1) and m-type calpain (CAPN2), both of which are ubiquitously expressed 80-kDa Ca2+-dependent intracellular cysteine proteases that contain a short N-terminal anchor helix, followed by a calpain cysteine protease (CysPc) domain, a C2-domain-like (C2L) domain, and a C-terminal Ca2+-binding penta-EF-hand (PEF) domain. The catalytic subunit CAPN1 or CAPN2 in complex with a regulatory subunit encoded by CAPNS1 forms a mu- or m-calpain heterodimer, respectively. Pssm-ID: 320064 [Multi-domain] Cd Length: 168 Bit Score: 38.49 E-value: 3.83e-03
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| CH_SYNE-like_rpt1 | cd21190 | first calponin homology (CH) domain found in the synaptic nuclear envelope protein family; The ... |
392-500 | 3.93e-03 | |||||||||
first calponin homology (CH) domain found in the synaptic nuclear envelope protein family; The synaptic nuclear envelope (SYNE) family includes SYNE-1, -2 and calmin. SYNE-1 (also called nesprin-1, enaptin, KASH domain-containing protein 1, KASH1, myocyte nuclear envelope protein 1, MYNE-1, or nuclear envelope spectrin repeat protein 1) and SYNE-2 (also called nesprin-2, KASH domain-containing protein 2, KASH2, nuclear envelope spectrin repeat protein 2, nucleus and actin connecting element protein, or protein NUANCE) may act redundantly. They are multi-isomeric modular proteins which form a linking network between organelles and the actin cytoskeleton to maintain subcellular spatial organization. They also act as components of the LINC (LInker of Nucleoskeleton and Cytoskeleton) complex, which is involved in the connection between the nuclear lamina and the cytoskeleton. Calmin, also called calponin-like transmembrane domain protein, is a protein with calponin homology (CH) and transmembrane domains expressed in maturing spermatogenic cells. It may be involved in the development and/or maintenance of neuronal functions. Members of this family contain two copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409039 Cd Length: 113 Bit Score: 37.55 E-value: 3.93e-03
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| CH_AtFIM_like_rpt2 | cd21296 | second calponin homology (CH) domain found in the Arabidopsis thaliana fimbrin family; The ... |
519-607 | 4.23e-03 | |||||||||
second calponin homology (CH) domain found in the Arabidopsis thaliana fimbrin family; The Arabidopsis thaliana fimbrin (AtFIM) family includes fimbrin-1, -2, -3, -4, and -5, which cross-link actin filaments (F-actin) in a calcium independent manner. They stabilize and prevent F-actin depolymerization mediated by profilin. They act as key regulators of actin cytoarchitecture, and are probably involved in the cell cycle, cell division, cell elongation, and cytoplasmic tractus. AtFIM5 is an actin bundling factor that is required for pollen germination and pollen tube growth. Members of this family contain four copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409145 Cd Length: 109 Bit Score: 37.50 E-value: 4.23e-03
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| EFh_ScPlc1p_like | cd16207 | EF-hand motif found in Saccharomyces cerevisiae phospholipase C-1 (ScPlc1p) and similar ... |
8-115 | 4.42e-03 | |||||||||
EF-hand motif found in Saccharomyces cerevisiae phospholipase C-1 (ScPlc1p) and similar proteins; This family represents a group of putative phosphoinositide-specific phospholipase C (PI-PLC, EC 3.1.4.11) encoded by PLC1 genes from yeasts, which are homologs of the delta isoforms of mammalian PI-PLC in terms of overall sequence similarity and domain organization. Mammalian PI-PLC is a signaling enzyme that hydrolyzes the membrane phospholipids phosphatidylinositol-4,5-bisphosphate (PIP2) to generate two important second messengers in eukaryotic signal transduction cascades, inositol 1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG). InsP3 triggers inflow of calcium from intracellular stores, while DAG, together with calcium, activates protein kinase C, which then phosphorylates other molecules, leading to altered cellular activity. Calcium is required for the catalysis. The prototype of this family is protein Plc1p (also termed 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase 1) encoded by PLC1 genes from Saccharomyces cerevisiae. ScPlc1p contains both highly conserved X- and Y- regions of PLC catalytic core domain, as well as a presumptive EF-hand like calcium binding motif. Experiments show that ScPlc1p displays calcium dependent catalytic properties with high similarity to those of the mammalian PLCs, and plays multiple roles in modulating the membrane/protein interactions in filamentation control. CaPlc1p encoded by CAPLC1 from the closely related yeast Candida albicans, an orthologue of S. cerevisiae Plc1p, is also included in this group. Like SCPlc1p, CaPlc1p has conserved presumptive catalytic domain, shows PLC activity when expressed in E. coli, and is involved in multiple cellular processes. There are two other gene copies of CAPLC1 in C. albicans, CAPLC2 (also named as PIPLC) and CAPLC3. Experiments show CaPlc1p is the only enzyme in C. albicans which functions as PLC. The biological functions of CAPLC2 and CAPLC3 gene products must be clearly different from CaPlc1p, but their exact roles remain unclear. Moreover, CAPLC2 and CAPLC3 gene products are more similar to extracellular bacterial PI-PLC than to the eukaryotic PI-PLC, and they are not included in this subfamily. Pssm-ID: 320037 [Multi-domain] Cd Length: 142 Bit Score: 38.00 E-value: 4.42e-03
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| EFh_PEF_CAPN2 | cd16199 | Penta-EF hand, calcium binding motifs, found in m-type calpain (CAPN2); CAPN2, also termed ... |
12-102 | 5.85e-03 | |||||||||
Penta-EF hand, calcium binding motifs, found in m-type calpain (CAPN2); CAPN2, also termed millimolar-calpain (m-calpain), or calpain-2 catalytic subunit, or calcium-activated neutral proteinase 2 (CANP 2), or calpain large polypeptide L2, or calpain-2 large subunit, is a ubiquitously expressed 80-kDa Ca2+-dependent intracellular cysteine protease that contains a short N-terminal anchor helix, followed by a calpain cysteine protease (CysPc) domain, a C2-domain-like (C2L) domain, and a C-terminal Ca2+-binding penta-EF-hand (PEF) domain. The catalytic subunit CAPN2 in complex with a regulatory subunit encoded by CAPNS1 forms an m-calpain heterodimer. CAPN2 acts as the key protease responsible for N-methyl-d-aspartic acid (NMDA)-induced cytoplasmic polyadenylation element-binding protein 3 (CPEB3) degradation in neurons. It cleaves several components of the focal adhesion complex, such as FAK and talin, triggering disassembly of the complex at the rear of the cell. The stimulation of CAPN2 activity is required for Golgi antiapoptotic proteins (GAAPs) to promote cleavage of FA kinase (FAK), cell spreading, and enhanced migration. calpain 2 is also involved in the onset of glial differentiation. It regulates proliferation, survival, migration, and tumorigenesis of breast cancer cells through a PP2A-Akt-FoxO-p27(Kip1) signaling cascade. Its expression is associated with response to platinum based chemotherapy, progression-free and overall survival in ovarian cancer. Moreover, CAPN2 may play a role in fundamental mitotic functions, such as the maintenance of sister chromatid cohesion. The activation of CAPN2 plays an essential role in hippocampal synaptic plasticity and in learning and memory. In the eye, CAPN2, together with a lens-specific variant of CAPN3, is responsible for proteolytic cleavages of alpha and beta-crystallin. Overactivated alpha and beta-crystallin can lead to cataract formation. Sometimes, CAPN2 compensates for loss of CAPN1, and both calpain isoforms are involved in AngII-induced aortic aneurysm formation. The main phosphorylation sites in m-calpain are Ser50 and Ser369/Thr370. Pssm-ID: 320074 [Multi-domain] Cd Length: 168 Bit Score: 37.96 E-value: 5.85e-03
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| EFh_CREC_RCN1 | cd16229 | EF-hand, calcium binding motif, found in reticulocalbin-1 (RCN-1); RCN-1 is an endoplasmic ... |
11-76 | 6.60e-03 | |||||||||
EF-hand, calcium binding motif, found in reticulocalbin-1 (RCN-1); RCN-1 is an endoplasmic reticulum resident low-affinity Ca2+-binding protein with six EF-hand motifs and a carboxyl-terminal His-Asp-Glu-Leu (HDEL) tetrapeptide signal. It is expressed at the cell surface. RCN-1 acts as a potential negative regulator of B-RAF activation and can negatively modulate cardiomyocyte hypertrophy by inhibition of the mitogen-activated protein kinase signaling cascade. It also plays a key role in the development of doxorubicin-associated resistance. Pssm-ID: 320027 [Multi-domain] Cd Length: 267 Bit Score: 38.71 E-value: 6.60e-03
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| EF-hand_5 | pfam13202 | EF hand; |
56-80 | 6.66e-03 | |||||||||
EF hand; Pssm-ID: 433035 [Multi-domain] Cd Length: 25 Bit Score: 34.22 E-value: 6.66e-03
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| CH_FIMB_rpt1 | cd21294 | first calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar ... |
454-502 | 8.45e-03 | |||||||||
first calponin homology (CH) domain found in Saccharomyces cerevisiae fimbrin and similar proteins; Fimbrin binds to actin, and functionally associates with actin structures involved in the development and maintenance of cell polarity. Members of this family contain four copies of the CH domain. This model corresponds to the first CH domain. CH domains are actin filament (F-actin) binding motifs. Pssm-ID: 409143 Cd Length: 125 Bit Score: 36.66 E-value: 8.45e-03
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