FERM domain-containing protein 4B isoform X10 [Gallus gallus]
Protein Classification
PH domain-containing protein; NGEF family PH domain-containing protein( domain architecture ID 11092786)
Pleckstrin homology (PH) domain-containing protein may be involved in targeting a protein to the appropriate cellular location or interacting with a binding partner| NGEF family PH (pleckstrin homology) domain-containing protein similar to PH region of ephexin-1 (NGEF) that acts as a guanine nucleotide exchange factor (GEF) which differentially activates the GTPases RHOA, RAC1 and CDC42
List of domain hits
| Name | Accession | Description | Interval | E-value | |||
| FERM_C_FRMD4A_FRMD4B | cd13191 | FERM domain C-lobe of FERM domain-containing protein 4A and 4B (FRMD4A and 4B); FRMD4A is part ... |
130-240 | 6.16e-63 | |||
FERM domain C-lobe of FERM domain-containing protein 4A and 4B (FRMD4A and 4B); FRMD4A is part of the Par-3/FRMD4A/cytohesin-1 complex that activates Arf6, a central player in actin cytoskeleton dynamics and membrane trafficking, during junctional remodeling and epithelial polarization. The Par-3/Par-6/aPKC/Cdc42 complex regulates the conversion of primordial adherens junctions (AJs) into belt-like AJs and the formation of linear actin cables. When primordial AJs are formed, Par-3 recruits scaffolding protein FRMD4A which connects Par-3 and the Arf6 guanine-nucleotide exchange factor (GEF), cytohesin-1. FRMD4B (also called GRP1-binding protein, GRSP1) is a novel member of GRP1 signaling complexes that are recruited to plasma membrane ruffles in response to insulin receptor signaling. The GRSP1/FRMD4B protein contains a FERM protein domain as well as two coiled coil domains and may function as a scaffolding protein. GRP1 and GRSP1 interact through the coiled coil domains in the two proteins. The FERM domain has a cloverleaf tripart structure composed of: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3). The C-lobe/F3 within the FERM domain is part of the PH domain family. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs) , the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites. : Pssm-ID: 270012 Cd Length: 113 Bit Score: 207.58 E-value: 6.16e-63
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| CUPID | pfam11819 | Cytohesin Ubiquitin Protein Inducing Domain; C1ORF106 also known as INAVA (Innate Immune ... |
269-403 | 7.15e-57 | |||
Cytohesin Ubiquitin Protein Inducing Domain; C1ORF106 also known as INAVA (Innate Immune Activator), is identified as a risk factor for the chronic inflammatory bowel diseases (IBD). Mice lacking the protein show defects in intestinal barrier integrity at steady state and greater susceptibility to mucosal infection. INAVA carries CUPID (Cytohesin Ubiquitin Protein Inducing Domain). Three other human proteins contain CUPID: FRMD4A, FRMD4B, and CCDC120- proteins implicated in neurite outgrowth, and in human cancer, Alzheimer's, celiac, and heart disease. All appear to bind the ARF-GEF (guanine nucleotide-exchange factors) cytohesin family members, such as proteins (ARF 1-4), which regulate cell membrane and F-actin dynamics. INAVA-CUPID binds cytohesin 2 (also known as ARNO), targets the molecule to lateral membranes of epithelial monolayers, and enables ARNO to affect F-actin assembly that underlies cell-cell junctions and barrier function. In the case of inflammatory signalling, ARNO can coordinate CUPID function by binding and inhibiting CUPID activity of acting as an enhancer of TRAF6 dependent polyubiquitination. In other words, ARNO acts as a negative-regulator of inflammatory responses. In summary, INAVA-CUPID exhibits dual functions, coordinated directly by ARNO, that bridge epithelial barrier function with extracellular signals and inflammation. : Pssm-ID: 463360 Cd Length: 136 Bit Score: 191.76 E-value: 7.15e-57
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| FERM_M super family | cl47539 | FERM central domain; This domain is the central structural domain of the FERM domain. |
68-134 | 5.50e-11 | |||
FERM central domain; This domain is the central structural domain of the FERM domain. The actual alignment was detected with superfamily member pfam00373: Pssm-ID: 459788 [Multi-domain] Cd Length: 117 Bit Score: 60.36 E-value: 5.50e-11
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| Name | Accession | Description | Interval | E-value | |||
| FERM_C_FRMD4A_FRMD4B | cd13191 | FERM domain C-lobe of FERM domain-containing protein 4A and 4B (FRMD4A and 4B); FRMD4A is part ... |
130-240 | 6.16e-63 | |||
FERM domain C-lobe of FERM domain-containing protein 4A and 4B (FRMD4A and 4B); FRMD4A is part of the Par-3/FRMD4A/cytohesin-1 complex that activates Arf6, a central player in actin cytoskeleton dynamics and membrane trafficking, during junctional remodeling and epithelial polarization. The Par-3/Par-6/aPKC/Cdc42 complex regulates the conversion of primordial adherens junctions (AJs) into belt-like AJs and the formation of linear actin cables. When primordial AJs are formed, Par-3 recruits scaffolding protein FRMD4A which connects Par-3 and the Arf6 guanine-nucleotide exchange factor (GEF), cytohesin-1. FRMD4B (also called GRP1-binding protein, GRSP1) is a novel member of GRP1 signaling complexes that are recruited to plasma membrane ruffles in response to insulin receptor signaling. The GRSP1/FRMD4B protein contains a FERM protein domain as well as two coiled coil domains and may function as a scaffolding protein. GRP1 and GRSP1 interact through the coiled coil domains in the two proteins. The FERM domain has a cloverleaf tripart structure composed of: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3). The C-lobe/F3 within the FERM domain is part of the PH domain family. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs) , the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites. Pssm-ID: 270012 Cd Length: 113 Bit Score: 207.58 E-value: 6.16e-63
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| CUPID | pfam11819 | Cytohesin Ubiquitin Protein Inducing Domain; C1ORF106 also known as INAVA (Innate Immune ... |
269-403 | 7.15e-57 | |||
Cytohesin Ubiquitin Protein Inducing Domain; C1ORF106 also known as INAVA (Innate Immune Activator), is identified as a risk factor for the chronic inflammatory bowel diseases (IBD). Mice lacking the protein show defects in intestinal barrier integrity at steady state and greater susceptibility to mucosal infection. INAVA carries CUPID (Cytohesin Ubiquitin Protein Inducing Domain). Three other human proteins contain CUPID: FRMD4A, FRMD4B, and CCDC120- proteins implicated in neurite outgrowth, and in human cancer, Alzheimer's, celiac, and heart disease. All appear to bind the ARF-GEF (guanine nucleotide-exchange factors) cytohesin family members, such as proteins (ARF 1-4), which regulate cell membrane and F-actin dynamics. INAVA-CUPID binds cytohesin 2 (also known as ARNO), targets the molecule to lateral membranes of epithelial monolayers, and enables ARNO to affect F-actin assembly that underlies cell-cell junctions and barrier function. In the case of inflammatory signalling, ARNO can coordinate CUPID function by binding and inhibiting CUPID activity of acting as an enhancer of TRAF6 dependent polyubiquitination. In other words, ARNO acts as a negative-regulator of inflammatory responses. In summary, INAVA-CUPID exhibits dual functions, coordinated directly by ARNO, that bridge epithelial barrier function with extracellular signals and inflammation. Pssm-ID: 463360 Cd Length: 136 Bit Score: 191.76 E-value: 7.15e-57
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| FERM_C | pfam09380 | FERM C-terminal PH-like domain; |
138-235 | 5.61e-23 | |||
FERM C-terminal PH-like domain; Pssm-ID: 462779 [Multi-domain] Cd Length: 85 Bit Score: 93.47 E-value: 5.61e-23
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| FERM_M | pfam00373 | FERM central domain; This domain is the central structural domain of the FERM domain. |
68-134 | 5.50e-11 | |||
FERM central domain; This domain is the central structural domain of the FERM domain. Pssm-ID: 459788 [Multi-domain] Cd Length: 117 Bit Score: 60.36 E-value: 5.50e-11
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| B41 | smart00295 | Band 4.1 homologues; Also known as ezrin/radixin/moesin (ERM) protein domains. Present in ... |
85-134 | 2.40e-04 | |||
Band 4.1 homologues; Also known as ezrin/radixin/moesin (ERM) protein domains. Present in myosins, ezrin, radixin, moesin, protein tyrosine phosphatases. Plasma membrane-binding domain. These proteins play structural and regulatory roles in the assembly and stabilization of specialized plasmamembrane domains. Some PDZ domain containing proteins bind one or more of this family. Now includes JAKs. Pssm-ID: 214604 [Multi-domain] Cd Length: 201 Bit Score: 43.05 E-value: 2.40e-04
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| Name | Accession | Description | Interval | E-value | |||
| FERM_C_FRMD4A_FRMD4B | cd13191 | FERM domain C-lobe of FERM domain-containing protein 4A and 4B (FRMD4A and 4B); FRMD4A is part ... |
130-240 | 6.16e-63 | |||
FERM domain C-lobe of FERM domain-containing protein 4A and 4B (FRMD4A and 4B); FRMD4A is part of the Par-3/FRMD4A/cytohesin-1 complex that activates Arf6, a central player in actin cytoskeleton dynamics and membrane trafficking, during junctional remodeling and epithelial polarization. The Par-3/Par-6/aPKC/Cdc42 complex regulates the conversion of primordial adherens junctions (AJs) into belt-like AJs and the formation of linear actin cables. When primordial AJs are formed, Par-3 recruits scaffolding protein FRMD4A which connects Par-3 and the Arf6 guanine-nucleotide exchange factor (GEF), cytohesin-1. FRMD4B (also called GRP1-binding protein, GRSP1) is a novel member of GRP1 signaling complexes that are recruited to plasma membrane ruffles in response to insulin receptor signaling. The GRSP1/FRMD4B protein contains a FERM protein domain as well as two coiled coil domains and may function as a scaffolding protein. GRP1 and GRSP1 interact through the coiled coil domains in the two proteins. The FERM domain has a cloverleaf tripart structure composed of: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3). The C-lobe/F3 within the FERM domain is part of the PH domain family. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs) , the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites. Pssm-ID: 270012 Cd Length: 113 Bit Score: 207.58 E-value: 6.16e-63
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| CUPID | pfam11819 | Cytohesin Ubiquitin Protein Inducing Domain; C1ORF106 also known as INAVA (Innate Immune ... |
269-403 | 7.15e-57 | |||
Cytohesin Ubiquitin Protein Inducing Domain; C1ORF106 also known as INAVA (Innate Immune Activator), is identified as a risk factor for the chronic inflammatory bowel diseases (IBD). Mice lacking the protein show defects in intestinal barrier integrity at steady state and greater susceptibility to mucosal infection. INAVA carries CUPID (Cytohesin Ubiquitin Protein Inducing Domain). Three other human proteins contain CUPID: FRMD4A, FRMD4B, and CCDC120- proteins implicated in neurite outgrowth, and in human cancer, Alzheimer's, celiac, and heart disease. All appear to bind the ARF-GEF (guanine nucleotide-exchange factors) cytohesin family members, such as proteins (ARF 1-4), which regulate cell membrane and F-actin dynamics. INAVA-CUPID binds cytohesin 2 (also known as ARNO), targets the molecule to lateral membranes of epithelial monolayers, and enables ARNO to affect F-actin assembly that underlies cell-cell junctions and barrier function. In the case of inflammatory signalling, ARNO can coordinate CUPID function by binding and inhibiting CUPID activity of acting as an enhancer of TRAF6 dependent polyubiquitination. In other words, ARNO acts as a negative-regulator of inflammatory responses. In summary, INAVA-CUPID exhibits dual functions, coordinated directly by ARNO, that bridge epithelial barrier function with extracellular signals and inflammation. Pssm-ID: 463360 Cd Length: 136 Bit Score: 191.76 E-value: 7.15e-57
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| FERM_C | pfam09380 | FERM C-terminal PH-like domain; |
138-235 | 5.61e-23 | |||
FERM C-terminal PH-like domain; Pssm-ID: 462779 [Multi-domain] Cd Length: 85 Bit Score: 93.47 E-value: 5.61e-23
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| FERM_C-lobe | cd00836 | FERM domain C-lobe; The FERM domain has a cloverleaf tripart structure composed of: (1) FERM_N ... |
130-232 | 1.95e-16 | |||
FERM domain C-lobe; The FERM domain has a cloverleaf tripart structure composed of: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3). The C-lobe/F3 within the FERM domain is part of the PH domain family. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs), the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites. Pssm-ID: 275389 Cd Length: 93 Bit Score: 75.10 E-value: 1.95e-16
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| FERM_C_ERM | cd13194 | FERM domain C-lobe/F3 of the ERM family; The ERM family includes ezrin, radixin, moesin and ... |
129-236 | 1.45e-15 | |||
FERM domain C-lobe/F3 of the ERM family; The ERM family includes ezrin, radixin, moesin and merlin. They are composed of a N-terminal FERM (ERM) domain (also called N-ERMAD (N-terminal ERM association domain)), a coiled coil region (CRR), and a C-terminal domain CERMAD (C-terminal ERM association domain) which has an F-actin-binding site (ABD). Two actin-binding sites have been identified in the middle and N-terminal domains. Merlin is structurally similar to the ERM proteins, but instead of an actin-binding domain (ABD), it contains a C-terminal domain (CTD), just like the proteins from the 4.1 family. Activated ezrin, radixin and moesin are thought to be involved in the linking of actin filaments to CD43, CD44, ICAM1-3 cell adhesion molecules, various membrane channels and receptors, such as the Na+/H+ exchanger-3 (NHE3), cystic fibrosis transmembrane conductance regulator (CFTR), and the beta2-adrenergic receptor. The ERM proteins exist in two states, a dormant state in which the FERM domain binds to its own C-terminal tail and thereby precludes binding of some partner proteins, and an activated state, in which the FERM domain binds to one of many membrane binding proteins and the C-terminal tail binds to F-actin. The FERM domain has a cloverleaf tripart structure composed of: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3). The C-lobe/F3 within the FERM domain of ERM is part of the PH domain family. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs), the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites. Pssm-ID: 270015 Cd Length: 97 Bit Score: 73.08 E-value: 1.45e-15
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| FERM_M | pfam00373 | FERM central domain; This domain is the central structural domain of the FERM domain. |
68-134 | 5.50e-11 | |||
FERM central domain; This domain is the central structural domain of the FERM domain. Pssm-ID: 459788 [Multi-domain] Cd Length: 117 Bit Score: 60.36 E-value: 5.50e-11
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| FERM_C_PTPH13 | cd13187 | FERM domain C-lobe of Protein tyrosine phosphatase non-receptor 13 (PTPH13); There are many ... |
130-236 | 2.79e-05 | |||
FERM domain C-lobe of Protein tyrosine phosphatase non-receptor 13 (PTPH13); There are many functions of PTPN13 (also called PTPL1, PTP-BAS, hPTP1E, FAP1, or PTPL1). Mice lacking PTPN13 activity have abnormal regulation of signal transducer and activator of transcription signaling in their T cells, mild impairment of motor nerve repair, and a significant reduction in the growth of retinal glia cultures. It also plays a role in adipocyte differentiation. PTPN13 contains a kinase non-catalytic C-lobe domain (KIND), a FERM domain with two potential phosphatidylinositol 4,5-biphosphate [PtdIns(4,5)P2]-binding motifs, 5 PDZ domains, and a carboxy-terminal catalytic domain. There is an nteraction between the FERM domain of PTPL1 and PtdIns(4,5)P2 which is thought to regulate the membrane localization of PTPN13. PDZ are protein/protein interaction domains so there is the potential for numerous partners that can actively participate in the regulation of its phosphatase activity or can permit direct or indirect recruitment of tyrosine phosphorylated PTPL1 substrates. The FERM domain has a cloverleaf tripart structure composed of: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3). The C-lobe/F3 within the FERM domain is part of the PH domain family. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs), the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites. Pssm-ID: 270008 Cd Length: 103 Bit Score: 43.85 E-value: 2.79e-05
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| FERM_C_FRMD3_FRMD5 | cd13192 | FERM domain C-lobe of FERM domain-containing protein 3 and 5 (FRMD3 and 5); FRMD3 (also called ... |
119-231 | 2.87e-05 | |||
FERM domain C-lobe of FERM domain-containing protein 3 and 5 (FRMD3 and 5); FRMD3 (also called Band 4.1-like protein 4O/4.1O though it is not a true member of that family) is a novel putative tumor suppressor gene that is implicated in the origin and progression of lung cancer. In humans there are 5 isoforms that are produced by alternative splicing. Less is known about FRMD5, though there are 2 isoforms of the human protein are produced by alternative splicing. Both FRMD3 and FRMD5 contain a N-terminal FERM domain, followed by a FERM adjacent (FA) domain, and 4.1 protein C-terminal domain (CTD). The FERM domain has a cloverleaf tripart structure composed of: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3). The C-lobe/F3 within the FERM domain is part of the PH domain family. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs), the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites. Pssm-ID: 270013 Cd Length: 105 Bit Score: 43.92 E-value: 2.87e-05
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| FERM_C_PTPN14_PTPN21 | cd13188 | FERM domain C-lobe of Protein tyrosine phosphatase non-receptor proteins 14 and 21 (PTPN14 and ... |
129-231 | 3.37e-05 | |||
FERM domain C-lobe of Protein tyrosine phosphatase non-receptor proteins 14 and 21 (PTPN14 and 21); This CD contains PTP members: pez/PTPN14 and PTPN21. A number of mutations in Pez have been shown to be associated with breast and colorectal cancer. The PTPN protein family belong to larger family of PTPs. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. The members are composed of a N-terminal FERM domain and a C-terminal PTP catalytic domain. The FERM domain has a cloverleaf tripart structure composed of: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3). The C-lobe/F3 within the FERM domain is part of the PH domain family. Like most other ERM members they have a phosphoinositide-binding site in their FERM domain. The FERM C domain is the third structural domain within the FERM domain. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs) , the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites. Pssm-ID: 270009 Cd Length: 91 Bit Score: 43.43 E-value: 3.37e-05
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| FERM_C_NBL4_NBL5 | cd13186 | FERM domain C-lobe of Novel band 4.1-like protein 4 and 5 (NBL4 and 5); NBL4 (also called ... |
130-231 | 2.01e-04 | |||
FERM domain C-lobe of Novel band 4.1-like protein 4 and 5 (NBL4 and 5); NBL4 (also called Erythrocyte protein band 4.1-like 4; Epb4 1l4) plays a role the beta-catenin/Tcf signaling pathway and is thought to be involved in establishing the cell polarity or proliferation. NBL4 may be also involved in adhesion, in cell motility and/or in cell-to-cell communication. No role for NBL5 has been proposed to date. Both NBL4 and NBL5 contain a N-terminal FERM domain which has a cloverleaf tripart structure composed of: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3). The C-lobe is a member of the PH superfamily. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs) , the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites. Pssm-ID: 270007 Cd Length: 92 Bit Score: 41.11 E-value: 2.01e-04
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| B41 | smart00295 | Band 4.1 homologues; Also known as ezrin/radixin/moesin (ERM) protein domains. Present in ... |
85-134 | 2.40e-04 | |||
Band 4.1 homologues; Also known as ezrin/radixin/moesin (ERM) protein domains. Present in myosins, ezrin, radixin, moesin, protein tyrosine phosphatases. Plasma membrane-binding domain. These proteins play structural and regulatory roles in the assembly and stabilization of specialized plasmamembrane domains. Some PDZ domain containing proteins bind one or more of this family. Now includes JAKs. Pssm-ID: 214604 [Multi-domain] Cd Length: 201 Bit Score: 43.05 E-value: 2.40e-04
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| FERM_C_4_1_family | cd13184 | FERM domain C-lobe of Protein 4.1 family; The protein 4.1 family includes four well-defined ... |
129-231 | 7.71e-04 | |||
FERM domain C-lobe of Protein 4.1 family; The protein 4.1 family includes four well-defined members: erythroid protein 4.1 (4.1R), the best known and characterized member, 4.1G (general), 4.1N (neuronal), and 4.1 B (brain). The less well understood 4.1O/FRMD3 is not a true member of this family and is not included in this hierarchy. Besides three highly conserved domains, FERM, SAB (spectrin and actin binding domain) and CTD (C-terminal domain), the proteins from this family contain several unique domains: U1, U2 and U3. FERM domains like other members of the FERM domain superfamily have a cloverleaf architecture with three distinct lobes: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3). The C-lobe/F3 within the FERM domain is part of the PH domain family. The brain is a particularly rich source of protein 4.1 isoforms. The various 4.1R, 4.1G, 4.1N, and 4.1B mRNAs are all expressed in distinct patterns within the brain. It is likely that 4.1 proteins play important functional roles in the brain including motor coordination and spatial learning, postmitotic differentiation, and synaptic architecture and function. In addition they are found in nonerythroid, nonneuronal cells where they may play a general structural role in nuclear architecture and/or may interact with splicing factors. The FERM C domain is the third structural domain within the FERM domain. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs) , the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites. Pssm-ID: 270005 Cd Length: 94 Bit Score: 39.61 E-value: 7.71e-04
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| FERM_C_FARP1-like | cd13193 | FERM domain C-lobe of FERM, RhoGEF and pleckstrin domain-containing protein 1 and related ... |
129-247 | 1.74e-03 | |||
FERM domain C-lobe of FERM, RhoGEF and pleckstrin domain-containing protein 1 and related proteins; Members here include FARP1 (also called Chondrocyte-derived ezrin-like protein; PH domain-containing family C member 2), FARP2 (also called FIR/FERM domain including RhoGEF; FGD1-related Cdc42-GEF/FRG), and FRMD7(FERM domain containing 7). FARP1 and FARP2 are members of the Dbl family guanine nucleotide exchange factors (GEFs) which are upstream positive regulators of Rho GTPases. FARP1 has increased expression in differentiated chondrocytes. FARP2 is thought to regulate neurite remodeling by mediating the signaling pathways from membrane proteins to Rac. It is found in brain, lung, and testis, as well as embryonic hippocampal and cortical neurons. These members are composed of a N-terminal FERM domain, a proline-rich (PR) domain, Dbl-homology (DH), and two C-terminal PH domains. Other members in this family do not contain the DH domains such as the Human FERM domain containing protein 7 and Caenorhabditis elegans CFRM3, both of which have unknown functions. They contain an N-terminal FERM domain, a PH domain, followed by a FA (FERM adjacent) domain. The FERM domain has a cloverleaf tripart structure composed of: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3). The C-lobe/F3 within the FERM domain is part of the PH domain family. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs), the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites. Pssm-ID: 270014 Cd Length: 122 Bit Score: 39.25 E-value: 1.74e-03
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| FERM_C_FRMD1_FRMD6 | cd13185 | FERM domain C-lobe of FERM domain containing 1 and 6 proteins; FRMD6 (also called willin and ... |
128-183 | 6.92e-03 | |||
FERM domain C-lobe of FERM domain containing 1 and 6 proteins; FRMD6 (also called willin and hEx/human expanded) is localized throughout the cytoplasm or along the plasma membrane. The Drosophilla protein Ex is a regulator of the Hippo/SWH (Sav/Wts/Hpo) signaling pathway, a signaling pathway that plays a pivotal role in organ size control and is tumor suppression by restricting proliferation and promoting apoptosis. Surprisingly, hEx is thought to function independently of the Hippo pathway. Instead it is hypothesized that hEx inhibits progression through the S phase of the cell cycle by upregulating p21(Cip1) and downregulating Cyclin A. It is also implicated in the progression of Alzheimer disease. Not much is known about FRMD1 to date. Both FRMD1 and FRMD6 contains a single FERM domain which has a cloverleaf tripart structure composed of: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3). The C-lobe is a member of the PH superfamily. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs) , the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites. Pssm-ID: 270006 Cd Length: 107 Bit Score: 37.29 E-value: 6.92e-03
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