FERM, RhoGEF and pleckstrin domain-containing protein 1 and related proteins Pleckstrin Homology (PH) domain, repeat 2; 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 FARP6 (also called Zinc finger FYVE domain-containing protein 24). They are members of the Dbl family guanine nucleotide exchange factors (GEFs) which are upstream positive regulators of Rho GTPases. Little is known about FARP1 and FARP6, though 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. FARP1 and FARP2 are composed of a N-terminal FERM domain, a proline-rich (PR) domain, Dbl-homology (DH), and two C-terminal PH domains. FARP6 is composed of Dbl-homology (DH), and two C-terminal PH domains separated by a FYVE domain. This hierarchy contains the second PH repeat. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464 1051 EHQLSGYLLRKFKNSSGWQKLWVVFTSFCLYFYKSYQDEFALASLPLLGYTVGPPGHQDAVQKEFVFKLSFKNHVYFFRA 1130
Cdd:cd13235     2 ENQMSGYLLRKFKNSNGWQKLWVVFTNFCLFFYKSHQDEFPLASLPLLGYSVGLPSEADNIDKDYVFKLQFKSHVYFFRA 81

                          90
                  ....*....|....*..
gi 442617464 1131 ESAHTYNRWLEVLRSTT 1147
Cdd:cd13235    82 ESEYTFERWMEVIRSAT 98

FERM, RhoGEF and pleckstrin domain-containing protein 1 and related proteins Pleckstrin Homology (PH) domain, repeat 1; 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 FARP6 (also called Zinc finger FYVE domain-containing protein 24). They are members of the Dbl family guanine nucleotide exchange factors (GEFs) which are upstream positive regulators of Rho GTPases. Little is known about FARP1 and FARP6, though 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. FARP1 and FARP2 are composed of a N-terminal FERM domain, a proline-rich (PR) domain, Dbl-homology (DH), and two C-terminal PH domains. FARP6 is composed of Dbl-homology (DH), and two C-terminal PH domains separated by a FYVE domain. This hierarchy contains the first PH repeat. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464  859 LVQPHRRLIRQGCLLKHSKRGLQQRMFFLFSDLLLYGSKSPLDQ-SFRILGHVPVRSLLTENAEH-----NTFSIFGGQC 932
Cdd:cd01220     1 LVQPGREFIREGCLQKLSKKGLQQRMFFLFSDVLLYTSRSPTPSlQFKVHGQLPLRGLMVEESEPewgvaHCFTIYGGNR 80

                          90       100
                  ....*....|....*....|....*....
gi 442617464  933 AITVSAGTTAEKTLWLAELSKAAADIKNR 961
Cdd:cd01220    81 ALTVAASSEEEKERWLEDLQRAIDAAKKS 109

FERM adjacent (FA); This region is found adjacent to Band 4.1 / FERM domains (pfam00373) in a subset of FERM containing protein. The region has been hypothesized to play a role in regulatory adaptation, based on similarity to other protein kinase substrates.

                           10        20        30        40
                   ....*....|....*....|....*....|....*....|.
gi 442617464   360 RVLSRGSSFRYSGKTQKQIIEFVRENYVKRQNFQRSQSFRQ 400
Cdd:pfam08736    1 KFFSLGSKFRYSGRTQKQTVEDSSEILRPQPEFERSPSKRY 41

FERM, RhoGEF and pleckstrin domain-containing protein 1 and related proteins Pleckstrin Homology (PH) domain, repeat 2; 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 FARP6 (also called Zinc finger FYVE domain-containing protein 24). They are members of the Dbl family guanine nucleotide exchange factors (GEFs) which are upstream positive regulators of Rho GTPases. Little is known about FARP1 and FARP6, though 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. FARP1 and FARP2 are composed of a N-terminal FERM domain, a proline-rich (PR) domain, Dbl-homology (DH), and two C-terminal PH domains. FARP6 is composed of Dbl-homology (DH), and two C-terminal PH domains separated by a FYVE domain. This hierarchy contains the second PH repeat. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464 1051 EHQLSGYLLRKFKNSSGWQKLWVVFTSFCLYFYKSYQDEFALASLPLLGYTVGPPGHQDAVQKEFVFKLSFKNHVYFFRA 1130
Cdd:cd13235     2 ENQMSGYLLRKFKNSNGWQKLWVVFTNFCLFFYKSHQDEFPLASLPLLGYSVGLPSEADNIDKDYVFKLQFKSHVYFFRA 81

                          90
                  ....*....|....*..
gi 442617464 1131 ESAHTYNRWLEVLRSTT 1147
Cdd:cd13235    82 ESEYTFERWMEVIRSAT 98

FERM, RhoGEF and pleckstrin domain-containing protein 1 and related proteins Pleckstrin Homology (PH) domain, repeat 1; 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 FARP6 (also called Zinc finger FYVE domain-containing protein 24). They are members of the Dbl family guanine nucleotide exchange factors (GEFs) which are upstream positive regulators of Rho GTPases. Little is known about FARP1 and FARP6, though 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. FARP1 and FARP2 are composed of a N-terminal FERM domain, a proline-rich (PR) domain, Dbl-homology (DH), and two C-terminal PH domains. FARP6 is composed of Dbl-homology (DH), and two C-terminal PH domains separated by a FYVE domain. This hierarchy contains the first PH repeat. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464  859 LVQPHRRLIRQGCLLKHSKRGLQQRMFFLFSDLLLYGSKSPLDQ-SFRILGHVPVRSLLTENAEH-----NTFSIFGGQC 932
Cdd:cd01220     1 LVQPGREFIREGCLQKLSKKGLQQRMFFLFSDVLLYTSRSPTPSlQFKVHGQLPLRGLMVEESEPewgvaHCFTIYGGNR 80

                          90       100
                  ....*....|....*....|....*....
gi 442617464  933 AITVSAGTTAEKTLWLAELSKAAADIKNR 961
Cdd:cd01220    81 ALTVAASSEEEKERWLEDLQRAIDAAKKS 109

FERM C-terminal PH-like domain;

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464   268 DVEGVPLNLAVAHMGITVFQNITRI-NTFSWAKIRKISFKRKRFLVKLHPEGY-DTVEFFFEGRNECKNFWKKCVENHGF 345
Cdd:pfam09380    1 DKEGTDLWLGVSAKGILVYEDNNKIlNLFPWREIRKISFKRKKFLIKLRDKSSeETLGFYTESSRACKYLWKLCVEQHTF 80

                   ...
gi 442617464   346 FRC 348
Cdd:pfam09380   81 FRL 83

Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Also called Dbl-homologous (DH) domain. It appears that PH domains invariably occur C-terminal to RhoGEF/DH domains.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464  655 YFLAKELLMTERTYKKDLDVLNTTFRQVLSLGDV----EQLQPLFELLDSLAQHHNLFLRDIEHRMVQWEGRGgheaHRI 730
Cdd:cd00160     2 QEVIKELLQTERNYVRDLKLLVEVFLKPLDKELLplspEEVELLFGNIEEIYEFHRIFLKSLEERVEEWDKSG----PRI 77

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464  731 GDVMMKHMAALPIYDEYVQTHLDILHCMNDMYEGDERFRQVYKEFEQQkVCYLPIGELLLKPLNRLLHYQLILERLCDYY 810
Cdd:cd00160    78 GDVFLKLAPFFKIYSEYCSNHPDALELLKKLKKFNKFFQEFLEKAESE-CGRLKLESLLLKPVQRLTKYPLLLKELLKHT 156

                         170       180
                  ....*....|....*....|....
gi 442617464  811 GEEHIDYADAMAVHHLLVRSTKGI 834
Cdd:cd00160   157 PDGHEDREDLKKALEAIKEVASQV 180

Pleckstrin homology domain; Domain commonly found in eukaryotic signalling proteins. The domain family possesses multiple functions including the abilities to bind inositol phosphates, and various proteins. PH domains have been found to possess inserted domains (such as in PLC gamma, syntrophins) and to be inserted within other domains. Mutations in Brutons tyrosine kinase (Btk) within its PH domain cause X-linked agammaglobulinaemia (XLA) in patients. Point mutations cluster into the positively charged end of the molecule around the predicted binding site for phosphatidylinositol lipids.

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464   1054 LSGYLLRKFKN-SSGWQKLWVVFTSFCLYFYKSYQDEFALA---SLPLLGYTVGPPGHQDAVQKEFVFKLSFKN-HVYFF 1128
Cdd:smart00233    3 KEGWLYKKSGGgKKSWKKRYFVLFNSTLLYYKSKKDKKSYKpkgSIDLSGCTVREAPDPDSSKKPHCFEIKTSDrKTLLL 82

                            90       100
                    ....*....|....*....|
gi 442617464   1129 RAESAHTYNRWLEVLRSTTQ 1148
Cdd:smart00233   83 QAESEEEREKWVEALRKAIA 102

PH domain; PH stands for pleckstrin homology.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464  1055 SGYLLRKFK-NSSGWQKLWVVFTSFCLYFYK---SYQDEFALASLPLLGYTVGPPGHQDAVQKEFVFKLSFKN----HVY 1126
Cdd:pfam00169    4 EGWLLKKGGgKKKSWKKRYFVLFDGSLLYYKddkSGKSKEPKGSISLSGCEVVEVVASDSPKRKFCFELRTGErtgkRTY 83

                           90
                   ....*....|....*....
gi 442617464  1127 FFRAESAHTYNRWLEVLRS 1145
Cdd:pfam00169   84 LLQAESEEERKDWIKAIQS 102

Pleckstrin homology domain; Domain commonly found in eukaryotic signalling proteins. The domain family possesses multiple functions including the abilities to bind inositol phosphates, and various proteins. PH domains have been found to possess inserted domains (such as in PLC gamma, syntrophins) and to be inserted within other domains. Mutations in Brutons tyrosine kinase (Btk) within its PH domain cause X-linked agammaglobulinaemia (XLA) in patients. Point mutations cluster into the positively charged end of the molecule around the predicted binding site for phosphatidylinositol lipids.

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464    866 LIRQGCLLK---HSKRGLQQRMFFLFSDLLLYGSKSPLDQSFRILGHVPVRSL-------LTENAEHNTFSI-FGGQCAI 934
Cdd:smart00233    1 VIKEGWLYKksgGGKKSWKKRYFVLFNSTLLYYKSKKDKKSYKPKGSIDLSGCtvreapdPDSSKKPHCFEIkTSDRKTL 80

                            90       100
                    ....*....|....*....|..
gi 442617464    935 TVSAGTTAEKTLWLAELSKAAA 956
Cdd:smart00233   81 LLQAESEEEREKWVEALRKAIA 102

FERM, RhoGEF and pleckstrin domain-containing protein 1 and related proteins Pleckstrin Homology (PH) domain, repeat 2; 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 FARP6 (also called Zinc finger FYVE domain-containing protein 24). They are members of the Dbl family guanine nucleotide exchange factors (GEFs) which are upstream positive regulators of Rho GTPases. Little is known about FARP1 and FARP6, though 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. FARP1 and FARP2 are composed of a N-terminal FERM domain, a proline-rich (PR) domain, Dbl-homology (DH), and two C-terminal PH domains. FARP6 is composed of Dbl-homology (DH), and two C-terminal PH domains separated by a FYVE domain. This hierarchy contains the second PH repeat. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464 1051 EHQLSGYLLRKFKNSSGWQKLWVVFTSFCLYFYKSYQDEFALASLPLLGYTVGPPGHQDAVQKEFVFKLSFKNHVYFFRA 1130
Cdd:cd13235     2 ENQMSGYLLRKFKNSNGWQKLWVVFTNFCLFFYKSHQDEFPLASLPLLGYSVGLPSEADNIDKDYVFKLQFKSHVYFFRA 81

                          90
                  ....*....|....*..
gi 442617464 1131 ESAHTYNRWLEVLRSTT 1147
Cdd:cd13235    82 ESEYTFERWMEVIRSAT 98

FERM, RhoGEF and pleckstrin domain-containing protein 1 and related proteins Pleckstrin Homology (PH) domain, repeat 1; 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 FARP6 (also called Zinc finger FYVE domain-containing protein 24). They are members of the Dbl family guanine nucleotide exchange factors (GEFs) which are upstream positive regulators of Rho GTPases. Little is known about FARP1 and FARP6, though 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. FARP1 and FARP2 are composed of a N-terminal FERM domain, a proline-rich (PR) domain, Dbl-homology (DH), and two C-terminal PH domains. FARP6 is composed of Dbl-homology (DH), and two C-terminal PH domains separated by a FYVE domain. This hierarchy contains the first PH repeat. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464  859 LVQPHRRLIRQGCLLKHSKRGLQQRMFFLFSDLLLYGSKSPLDQ-SFRILGHVPVRSLLTENAEH-----NTFSIFGGQC 932
Cdd:cd01220     1 LVQPGREFIREGCLQKLSKKGLQQRMFFLFSDVLLYTSRSPTPSlQFKVHGQLPLRGLMVEESEPewgvaHCFTIYGGNR 80

                          90       100
                  ....*....|....*....|....*....
gi 442617464  933 AITVSAGTTAEKTLWLAELSKAAADIKNR 961
Cdd:cd01220    81 ALTVAASSEEEKERWLEDLQRAIDAAKKS 109

FERM domain C-lobe of Protein tyrosine phosphatase non-receptor proteins 3 and 4 (PTPN4 and PTPN3); PTPN4 (also called PTPMEG, protein tyrosine phosphatase, megakaryocyte) is a cytoplasmic protein-tyrosine phosphatase (PTP) thought to play a role in cerebellar function. PTPMEG-knockout mice have impaired memory formation and cerebellar long-term depression. PTPN3/PTPH1 is a membrane-associated PTP that is implicated in regulating tyrosine phosphorylation of growth factor receptors, p97 VCP (valosin-containing protein, or Cdc48 in Saccharomyces cerevisiae), and HBV (Hepatitis B Virus) gene expression; it is mutated in a subset of colon cancers. PTPMEG and PTPN3/PTPH1 contains a N-terminal FERM domain, a middle PDZ domain, and a C-terminal phosphatase domain. PTP1/Tyrosine-protein phosphatase 1 from nematodes and a FERM_C repeat 1 from Tetraodon nigroviridis are also included in this cd. 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 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.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464  258 LYGMKMHPAKDVEGVPLNLAVAHMGITVFQNITRINTFSWAKIRKISFKRKRFLVKLHPEGYDTVE----FFFEGRNECK 333
Cdd:cd13189     1 LYGVELHSARDSNNLELQIGVSSAGILVFQNGIRINTFPWSKIVKISFKRKQFFIQLRREPNESRDtilgFNMLSYRACK 80

                          90
                  ....*....|....
gi 442617464  334 NFWKKCVENHGFFR 347
Cdd:cd13189    81 NLWKSCVEHHTFFR 94

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.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464  259 YGMKMHPAKDVEGVPLNLAVAHMGITVFQNITRINTFSWAKIRKISFKRKRFLVKLHP---EGYDT-VEFFFEGRNECKN 334
Cdd:cd13184     1 YGVDLHPAKDSEGVDIMLGVCSSGLLVYRDRLRINRFAWPKVLKISYKRNNFYIKIRPgefEQYETtIGFKLPNHRAAKR 80

                          90
                  ....*....|...
gi 442617464  335 FWKKCVENHGFFR 347
Cdd:cd13184    81 LWKVCVEHHTFFR 93

FERM central domain; This domain is the central structural domain of the FERM domain.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464   153 PDPAQLEEEYTRYLFCLQIKRDLATGSLQCNDNTAALMASYIVQASCGDFVPEDYPdHTYLSSYRFVPNQDAT------M 226
Cdd:pfam00373    1 DLELLLQDEVTRHLLYLQAKDDILEGRLPCSEEEALLLAALQLQAEFGDYQPSSHT-SEYLSLESFLPKQLLRkmkskeL 79

                           90       100       110
                   ....*....|....*....|....*....|....*...
gi 442617464   227 QRKIMENHKKHVGQSPAEADLNLLETARRCELYGMKMH 264
Cdd:pfam00373   80 EKRVLEAHKNLRGLSAEEAKLKYLQIAQSLPTYGVEFF 117

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in FERM, ARH/RhoGEF and pleckstrin domain-containing protein 1 (FARP1); FARP1, also termed chondrocyte-derived ezrin-like protein (CDEP), or pleckstrin homology (PH) domain-containing family C member 2 (PLEKHC2), is a neuronal activator of the RhoA GTPase. It promotes outgrowth of developing motor neuron dendrites. It also regulates excitatory synapse formation and morphology, as well as activates the GTPase Rac1 to promote F-actin assembly. As a novel downstream signaling partner of Rif, FARP1 is involved in the regulation of semaphorin signaling in neurons. FARP1 contains a FERM domain, a Dbl-homology (DH) domain and two pleckstrin homology (PH) domains. The FERM domain is made up of three sub-domains, F1, F2, and F3. This family corresponds to the F1 sub-domain, which is also called the N-terminal ubiquitin-like structural domain of the FERM domain (FERM_N).

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464   71 VRIQMLDDSITMFQVQAKALGRVLFEQVCRQLNLLEADYFGLEYQEvstHTKY--WLDLEKPMNRQVGLSLiDPVLRFCI 148
Cdd:cd17189     3 IKVQMLDDTQEVFEVPQRAPGKVLLDAVCSHLNLVEGDYFGLEFQD---HRKVmvWLDLLKPIVKQIRRPK-HVVLRFVV 78

                  ....*.
gi 442617464  149 KFYTPD 154
Cdd:cd17189    79 KFFPPD 84

FYVE, RhoGEF and PH domain containing/faciogenital dysplasia proteins 5 and 6, N-terminal Pleckstrin Homology (PH) domain; FGD5 regulates promotes angiogenesis of vascular endothelial growth factor (VEGF) in vascular endothelial cells, including network formation, permeability, directional movement, and proliferation. The specific function of FGD6 is unknown. In general, FGDs have a RhoGEF (DH) domain, followed by a PH domain, a FYVE domain and a C-terminal PH domain. All FGDs are guanine nucleotide exchange factors that activate the Rho GTPase Cdc42, an important regulator of membrane trafficking. The RhoGEF domain is responsible for GEF catalytic activity, while the PH domain is involved in intracellular targeting of the DH domain. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464  859 LVQPHRRLIRQGCLLKHSKRGLQQRMFFLFSDLLLYGSKSPLDQSFRI-----LGHVPVrSLLTENAEHNTFSIFGGQCA 933
Cdd:cd13389     7 IVKPGRKLIKEGELMKVSRKEMQPRYFFLFNDCLLYTTPVQSSGMLKLnnelpLSGMKV-KLPEDEEYSNEFQIISTKRS 85

                          90       100
                  ....*....|....*....|....*...
gi 442617464  934 ITVSAGTTAEKTLWLAELSKAAADIKNR 961
Cdd:cd13389    86 FTLIASSEEERDEWVKALSRAIEEHTKK 113

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in FERM, ARH/RhoGEF and pleckstrin domain-containing protein 2 (FARP2) and similar proteins; FARP2, also termed FERM domain including RhoGEF (FIR), or Pleckstrin homology (PH) domain-containing family C member 3, is a Dbl-family guanine nucleotide exchange factor (GEF) that activates Rac1 or Cdc42 in response to upstream signals, suggesting roles in regulating processes such as neuronal axon guidance and bone homeostasis. It is also a key molecule involved in the response of neuronal growth cones to class-3 semaphorins. FARP2 contains a FERM domain, a Dbl-homology (DH) domain and two pleckstrin homology (PH) domains. The FERM domain is made up of three sub-domains, F1, F2, and F3. This family corresponds to the F1 sub-domain, which is also called the N-terminal ubiquitin-like structural domain of the FERM domain (FERM_N).

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464   69 LTVRIQMLDDSITMFQVQAKALGRVLFEQVCRQLNLLEADYFGLEYQEVSTHtKYWLDLEKPMNRQVGLSLiDPVLRFCI 148
Cdd:cd17190     1 LQLRVKLLDNTTEPLEIEPKADGQALLSQVFKRLNLVESDYFGLEFQNSQSN-WIWLEPMKLIVKQVRRPK-NTKLRLAV 78

                  ....*..
gi 442617464  149 KFYTPDP 155
Cdd:cd17190    79 KFFPPDP 85

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.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464  245 ADLNLLETARRCELYGMKMHPAKDVEGVPLNLAVAHMGITVFQNITRINTFSWAKIRKISFKRKRFLVKLH--PEGYDTV 322
Cdd:cd13192     1 AEDNFLRKAATLETYGVDPHPVKDHRGNQLYLGFTHTGIVTFQGGKRVHHFRWNDITKFNYEGKMFILHVMqkEEKKHTL 80

                          90       100
                  ....*....|....*....|....*
gi 442617464  323 EFFFEGRNECKNFWKKCVENHGFFR 347
Cdd:cd13192    81 GFKCPTPAACKHLWKCAVEQQAFYT 105

FYVE, RhoGEF and PH domain containing/faciogenital dysplasia proteins 5 and 6 pleckstrin homology (PH) domain, C-terminus; FGD5 regulates promotes angiogenesis of vascular endothelial growth factor (VEGF) in vascular endothelial cells, including network formation, permeability, directional movement, and proliferation. The specific function of FGD6 is unknown. In general, FGDs have a RhoGEF (DH) domain, followed by a PH domain, a FYVE domain and a C-terminal PH domain. All FGDs are guanine nucleotide exchange factors that activate the Rho GTPase Cdc42, an important regulator of membrane trafficking. The RhoGEF domain is responsible for GEF catalytic activity, while the PH domain is involved in intracellular targeting of the DH domain. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464 1054 LSGYLLRKFKNSSGWQKLWVVFTSFCLYFYKSYQDEFALASLPLLGYTVGPPGHQDAVQKEFVFKLSFKNHVYF-FRAES 1132
Cdd:cd13237     1 MSGYLQRRKKSKKSWKRLWFVLKDKVLYTYKASEDVVALESVPLLGFTVVTIDESFEEDESLVFQLLHKGQLPIiFRADD 80

                          90
                  ....*....|.
gi 442617464 1133 AHTYNRWLEVL 1143
Cdd:cd13237    81 AETAQRWIEAL 91

Phafin2 (also called EAPF, FLJ13187, ZFYVE18 or PLEKHF2) Pleckstrin Homology (PH) domain; Phafin2 is differentially expressed in the liver cancer cell and regulates the structure and function of the endosomes through Rab5-dependent processes. Phafin2 modulates the cell's response to extracellular stimulation by modulating the receptor density on the cell surface. Phafin2 contains a PH domain and a FYVE domain. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464  857 EQLVQPHRRLIRQGCLLKHSKRGLQQRMFFLFSDLLLYGS-----KSPLDQSFRILGHVPVRSLLTENAEHNTFSIFGGQ 931
Cdd:cd01218    21 QPLVKPGRVLVGEGVLTKVCRKKPKPRQFFLFNDILVYGSivinkKKYNKQRIIPLEDVKIEDLEDTGELKNGWQIISPK 100

                          90       100
                  ....*....|....*....|...
gi 442617464  932 CAITVSAGTTAEKTLWLAELSKA 954
Cdd:cd01218   101 KSFVVYAATATEKSEWMDHINKC 123

Phosphoinositol 3-phosphate binding proteins 1, 2, and 3 pleckstrin homology (PH) domain; PEPP1 (also called PLEKHA4/PH domain-containing family A member 4 and RHOXF1/Rhox homeobox family member 1), and related homologs PEPP2 (also called PLEKHA5/PH domain-containing family A member 5) and PEPP3 (also called PLEKHA6/PH domain-containing family A member 6), have PH domains that interact specifically with PtdIns(3,4)P3. Other proteins that bind PtdIns(3,4)P3 specifically are: TAPP1 (tandem PH-domain-containing protein-1) and TAPP2], PtdIns3P AtPH1, and Ptd- Ins(3,5)P2 (centaurin-beta2). All of these proteins contain at least 5 of the 6 conserved amino acids that make up the putative phosphatidylinositol 3,4,5- trisphosphate-binding motif (PPBM) located at their N-terminus. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464 1054 LSGYLlrkFK-NSSG---WQKLWVVFTSFCLYFYKSYQDEFALASLPLLGYTVGPPGHQDAVQKEFVFKLSFKN-HVYFF 1128
Cdd:cd13248     9 MSGWL---HKqGGSGlknWRKRWFVLKDNCLYYYKDPEEEKALGSILLPSYTISPAPPSDEISRKFAFKAEHANmRTYYF 85

                          90
                  ....*....|....*.
gi 442617464 1129 RAESAHTYNRWLEVLR 1144
Cdd:cd13248    86 AADTAEEMEQWMNAMS 101

Pleckstrin homology domain; Domain commonly found in eukaryotic signalling proteins. The domain family possesses multiple functions including the abilities to bind inositol phosphates, and various proteins. PH domains have been found to possess inserted domains (such as in PLC gamma, syntrophins) and to be inserted within other domains. Mutations in Brutons tyrosine kinase (Btk) within its PH domain cause X-linked agammaglobulinaemia (XLA) in patients. Point mutations cluster into the positively charged end of the molecule around the predicted binding site for phosphatidylinositol lipids.

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464   1054 LSGYLLRKFKN-SSGWQKLWVVFTSFCLYFYKSYQDEFALA---SLPLLGYTVGPPGHQDAVQKEFVFKLSFKN-HVYFF 1128
Cdd:smart00233    3 KEGWLYKKSGGgKKSWKKRYFVLFNSTLLYYKSKKDKKSYKpkgSIDLSGCTVREAPDPDSSKKPHCFEIKTSDrKTLLL 82

                            90       100
                    ....*....|....*....|
gi 442617464   1129 RAESAHTYNRWLEVLRSTTQ 1148
Cdd:smart00233   83 QAESEEEREKWVEALRKAIA 102

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in erythrocyte membrane protein band 4.1-like protein 3 (EPB41L3) and similar proteins; EPB41L3, also termed 4.1B, or differentially expressed in adenocarcinoma of the lung protein 1 (DAL-1), belongs to the skeletal protein 4.1 family that is involved in cellular processes such as cell adhesion, migration and signaling. EPB41L3 is a tumor suppressor that has been implicated in a variety of meningiomas and carcinomas. EPB41L3 contains a FERM domain, a spectrin and actin binding (SAB) domain, and a C-terminal domain. The FERM domain is made up of three sub-domains, F1, F2, and F3. This family corresponds to the F1 sub-domain, which is also called the N-terminal ubiquitin-like structural domain of the FERM domain (FERM_N).

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464   72 RIQMLDDSITMFQVQAKALGRVLFEQVCRQLNLLEADYFGLEYQEvSTHTKYWLDLEKPMNRQVGLSLIDpvLRFCIKFY 151
Cdd:cd17203     5 KVTLLDGSEYTCEVEKRSKGQVLFDKVCEHLNLLEKDYFGLTYRD-SENQKNWLDPAKEIKKQIRSGAWQ--FSFNVKFY 81

                  ...
gi 442617464  152 TPD 154
Cdd:cd17203    82 PPD 84

FYVE, RhoGEF and PH domain containing/faciogenital dysplasia proteins pleckstrin homology (PH) domain, C-terminus; In general, FGDs have a RhoGEF (DH) domain, followed by an N-terminal PH domain, a FYVE domain and a C-terminal PH domain. All FGDs are guanine nucleotide exchange factors that activates the Rho GTPase Cdc42, an important regulator of membrane trafficking. The RhoGEF domain is responsible for GEF catalytic activity, while the N-terminal PH domain is involved in intracellular targeting of the DH domain. Not much is known about FGD2. FGD1 is the best characterized member of the group with mutations here leading to the X-linked disorder known as faciogenital dysplasia (FGDY). Both FGD1 and FGD3 are targeted by the ubiquitin ligase SCF(FWD1/beta-TrCP) upon phosphorylation of two serine residues in its DSGIDS motif and subsequently degraded by the proteasome. However, FGD1 and FGD3 induced significantly different morphological changes in HeLa Tet-Off cells and while FGD1 induced long finger-like protrusions, FGD3 induced broad sheet-like protrusions when the level of GTP-bound Cdc42 was significantly increased by the inducible expression of FGD3. They also reciprocally regulated cell motility in inducibly expressed in HeLa Tet-Off cells, FGD1 stimulated cell migration while FGD3 inhibited it. FGD1 and FGD3 therefore play different roles to regulate cellular functions, even though their intracellular levels are tightly controlled by the same destruction pathway through SCF(FWD1/beta-TrCP). FGD4 is one of the genes associated with Charcot-Marie-Tooth neuropathy type 4 (CMT4), a group of progressive motor and sensory axonal and demyelinating neuropathies that are distinguished from other forms of CMT by autosomal recessive inheritance. Those affected have distal muscle weakness and atrophy associated with sensory loss and, frequently, pes cavus foot deformity. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464 1064 NSSGWQKLWVVFTS---FCLYFYKSYQDEFALASLPLLGYTVGPPGHQDAVQKEFVFKLSFKNHVYFFRAESAHTYNRWL 1140
Cdd:cd13236    19 KGKTWQKVWCVIPRtepLVLYLYGAPQDVRAQRTIPLPGCEVTVPPPEERLDGRHVFKLSQSKQSHYFSAESEELQQRWL 98

                  ....
gi 442617464 1141 EVLR 1144
Cdd:cd13236    99 EALS 102

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in erythrocyte band 4.1-like protein 4A (EPB41L4A) and similar proteins; EPB41L4A, also termed protein NBL4, is a member of the band 4.1/Nbl4 (novel band 4.1-like protein 4) group of the FERM protein superfamily. It contains a FERM domain that is made up of three sub-domains, F1, F2, and F3. This family corresponds to the F1 sub-domain, which is also called the N-terminal ubiquitin-like structural domain of the FERM domain (FERM_N). EPB41L4A is an important component of the beta-catenin/Tcf pathway. It may be related to determination of cell polarity or proliferation.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442617464   67 KKLTVRIQMLDDSITMFQVQAKAL----GRVLFEQVCRQLNLLEADYFGLEYQEvSTHTKYWLDLEKPMNRQvgLSLIDP 142
Cdd:cd17107     1 EEFYCEIVLLDESELILTIQQDGIksskGSVVLDVVFQHLNLLETDYFGLRYID-RQHQTHWLDPAKTLSEQ--LKLIGP 77