FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in tyrosine-protein phosphatase non-receptor type 14 (PTPN14) and similar proteins; PTPN14, also termed protein-tyrosine phosphatase pez, or PTPD2, or PTP36, is a widely expressed non-transmembrane cytosolic protein tyrosine phosphatase (PTP). It belongs to the FERM family of PTPs characterized by a conserved N-terminal FERM domain and a C-terminal PTP catalytic domain with an intervening sequence containing an acidic region and a putative SH3 domain-binding sequence. 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). PTPN14 plays a role in the nucleus during cell proliferation. It forms a complex with Kibra and LATS1 proteins and negatively regulates the key Hippo pathway protein Yes-associated protein (YAP) oncogenic function by controlling its localization. It specifically regulates p130 Crk-associated substrate (p130Cas) phosphorylation at tyrosine residue 128 (Y128) in colorectal cancer (CRC) cells. Moreover, PTPN14 may be a critical enzyme in regulating endothelial cell function. It plays a crucial role in organogenesis by inducing transforming growth factor beta (TGFbeta) and epithelial-mesenchymal transition (EMT). It also acts as a modifier of angiogenesis and hereditary haemorrhagic telangiectasia. It regulates the lymphatic function and choanal development through the interaction with the vascular endothelial growth factor receptor 3 (VEGFR3), a receptor tyrosine kinase essential for lymphangiogenesis. Furthermore, PTPN14 functions as a regulator of cell motility through its action on cell-cell adhesion. Beta-Catenin, a central component of adherens junctions, has been identified as a PTPN14 substrate. PTPN14 works as a novel sperm-motility biomarker and a potential mitochondrial protein.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926  18 KNCFVTRIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLDKFANEPLLFF 97
Cdd:cd17191   1 KNCFVTRIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKQLDKFANEPLLFF 80

                ....*..
gi 33878926  98 GVMFYVP 104
Cdd:cd17191  81 GVMFYVP 87

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.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926 215 FGQEIFPVKDNHGNCVHLGIFFMGIFVRNRIGRQAVIYRWNDMGNITHNKSTILVELINKEETALFHTDDIENAKYISRL 294
Cdd:cd13188   1 YGEESFPAKDEQGNEVLIGASLEGIFVKHDNGRPPVFFRWEDIKNVINHKRTFSIECQNSEETVQFQFEDAETAKYVWKL 80

                        90
                ....*....|.
gi 33878926 295 FATRHKFYKQN 305
Cdd:cd13188  81 CVLQHKFYRQN 91

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in tyrosine-protein phosphatase non-receptor type 14 (PTPN14) and similar proteins; PTPN14, also termed protein-tyrosine phosphatase pez, or PTPD2, or PTP36, is a widely expressed non-transmembrane cytosolic protein tyrosine phosphatase (PTP). It belongs to the FERM family of PTPs characterized by a conserved N-terminal FERM domain and a C-terminal PTP catalytic domain with an intervening sequence containing an acidic region and a putative SH3 domain-binding sequence. 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). PTPN14 plays a role in the nucleus during cell proliferation. It forms a complex with Kibra and LATS1 proteins and negatively regulates the key Hippo pathway protein Yes-associated protein (YAP) oncogenic function by controlling its localization. It specifically regulates p130 Crk-associated substrate (p130Cas) phosphorylation at tyrosine residue 128 (Y128) in colorectal cancer (CRC) cells. Moreover, PTPN14 may be a critical enzyme in regulating endothelial cell function. It plays a crucial role in organogenesis by inducing transforming growth factor beta (TGFbeta) and epithelial-mesenchymal transition (EMT). It also acts as a modifier of angiogenesis and hereditary haemorrhagic telangiectasia. It regulates the lymphatic function and choanal development through the interaction with the vascular endothelial growth factor receptor 3 (VEGFR3), a receptor tyrosine kinase essential for lymphangiogenesis. Furthermore, PTPN14 functions as a regulator of cell motility through its action on cell-cell adhesion. Beta-Catenin, a central component of adherens junctions, has been identified as a PTPN14 substrate. PTPN14 works as a novel sperm-motility biomarker and a potential mitochondrial protein.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926  18 KNCFVTRIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLDKFANEPLLFF 97
Cdd:cd17191   1 KNCFVTRIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKQLDKFANEPLLFF 80

                ....*..
gi 33878926  98 GVMFYVP 104
Cdd:cd17191  81 GVMFYVP 87

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

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926   104 PNVSWLQQEATRYQYYLQVKKDVLEGRLRCTLDQVIRLAGLAVQADFGDYNQFDSQ-DFLREYVLFPMDLaLEEAVLEEL 182
Cdd:pfam00373   1 DLELLLQDEVTRHLLYLQAKDDILEGRLPCSEEEALLLAALQLQAEFGDYQPSSHTsEYLSLESFLPKQL-LRKMKSKEL 79

                          90       100       110
                  ....*....|....*....|....*....|....*...
gi 33878926   183 TQKVAQEHKAHSGILPAEAELMYINEVERLDGFGQEIF 220
Cdd:pfam00373  80 EKRVLEAHKNLRGLSAEEAKLKYLQIAQSLPTYGVEFF 117

FERM domain B-lobe; The FERM domain has a cloverleaf tripart structure (FERM_N, FERM_M, FERM_C/N, alpha-, and C-lobe/A-lobe, B-lobe, C-lobe/F1, F2, F3). 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, the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the pleckstrin homology (PH) and phosphotyrosine binding (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 33878926 114 TRYQYYLQVKKDVLEGRLRCTLDQVIRLAGLAVQADFGDYNQ-FDSQDFLREYVLFPMDLaLEEAVLEELTQKVAQEHKA 192
Cdd:cd14473   1 TRYLLYLQVKRDILEGRLPCSEETAALLAALALQAEYGDYDPsEHKPKYLSLKRFLPKQL-LKQRKPEEWEKRIVELHKK 79

                        90       100
                ....*....|....*....|
gi 33878926 193 HSGILPAEAELMYINEVERL 212
Cdd:cd14473  80 LRGLSPAEAKLKYLKIARKL 99

FERM C-terminal PH-like domain;

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926   224 DNHGNCVHLGIFFMGIFVRNRIGRQAVIYRWNDMGNITHNKSTILVELINK--EETALFHTDDIENAKYISRLFATRHKF 301
Cdd:pfam09380   1 DKEGTDLWLGVSAKGILVYEDNNKILNLFPWREIRKISFKRKKFLIKLRDKssEETLGFYTESSRACKYLWKLCVEQHTF 80

                  ....*
gi 33878926   302 YKQNK 306
Cdd:pfam09380  81 FRLRR 85

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in tyrosine-protein phosphatase non-receptor type 14 (PTPN14) and similar proteins; PTPN14, also termed protein-tyrosine phosphatase pez, or PTPD2, or PTP36, is a widely expressed non-transmembrane cytosolic protein tyrosine phosphatase (PTP). It belongs to the FERM family of PTPs characterized by a conserved N-terminal FERM domain and a C-terminal PTP catalytic domain with an intervening sequence containing an acidic region and a putative SH3 domain-binding sequence. 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). PTPN14 plays a role in the nucleus during cell proliferation. It forms a complex with Kibra and LATS1 proteins and negatively regulates the key Hippo pathway protein Yes-associated protein (YAP) oncogenic function by controlling its localization. It specifically regulates p130 Crk-associated substrate (p130Cas) phosphorylation at tyrosine residue 128 (Y128) in colorectal cancer (CRC) cells. Moreover, PTPN14 may be a critical enzyme in regulating endothelial cell function. It plays a crucial role in organogenesis by inducing transforming growth factor beta (TGFbeta) and epithelial-mesenchymal transition (EMT). It also acts as a modifier of angiogenesis and hereditary haemorrhagic telangiectasia. It regulates the lymphatic function and choanal development through the interaction with the vascular endothelial growth factor receptor 3 (VEGFR3), a receptor tyrosine kinase essential for lymphangiogenesis. Furthermore, PTPN14 functions as a regulator of cell motility through its action on cell-cell adhesion. Beta-Catenin, a central component of adherens junctions, has been identified as a PTPN14 substrate. PTPN14 works as a novel sperm-motility biomarker and a potential mitochondrial protein.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926  18 KNCFVTRIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLDKFANEPLLFF 97
Cdd:cd17191   1 KNCFVTRIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKQLDKFANEPLLFF 80

                ....*..
gi 33878926  98 GVMFYVP 104
Cdd:cd17191  81 GVMFYVP 87

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in tyrosine-protein phosphatase non-receptors PTPN14, PTPN21, and similar proteins; This family includes tyrosine-protein phosphatase non-receptors PTPN14 and PTPN21, both of which are protein-tyrosine phosphatase (PTP). They belong to the FERM family of PTPs characterized by a conserved N-terminal FERM domain and a C-terminal PTP catalytic domain with an intervening sequence containing an acidic region and a putative SH3 domain-binding sequence. 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). PTPN14 plays a role in the nucleus during cell proliferation. PTPN21 interacts with a Tec tyrosine kinase family member, the epithelial and endothelial tyrosine kinase (Etk, also known as Bmx), modulates Stat3 activation, and plays a role in the regulation of cell growth and differentiation.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926  18 KNCFVTRIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLDKFANEPLLFF 97
Cdd:cd17099   1 KNSFVVRIQLLDNTVLECTLSPESTGQDCLEYVAQRLELREIEYFGLRYVNKKGQLRWVDLEKPLKKQLDKHAHEPLLYF 80

                ....*
gi 33878926  98 GVMFY 102
Cdd:cd17099  81 GVMFY 85

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

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926   104 PNVSWLQQEATRYQYYLQVKKDVLEGRLRCTLDQVIRLAGLAVQADFGDYNQFDSQ-DFLREYVLFPMDLaLEEAVLEEL 182
Cdd:pfam00373   1 DLELLLQDEVTRHLLYLQAKDDILEGRLPCSEEEALLLAALQLQAEFGDYQPSSHTsEYLSLESFLPKQL-LRKMKSKEL 79

                          90       100       110
                  ....*....|....*....|....*....|....*...
gi 33878926   183 TQKVAQEHKAHSGILPAEAELMYINEVERLDGFGQEIF 220
Cdd:pfam00373  80 EKRVLEAHKNLRGLSAEEAKLKYLQIAQSLPTYGVEFF 117

FERM domain B-lobe; The FERM domain has a cloverleaf tripart structure (FERM_N, FERM_M, FERM_C/N, alpha-, and C-lobe/A-lobe, B-lobe, C-lobe/F1, F2, F3). 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, the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the pleckstrin homology (PH) and phosphotyrosine binding (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 33878926 114 TRYQYYLQVKKDVLEGRLRCTLDQVIRLAGLAVQADFGDYNQ-FDSQDFLREYVLFPMDLaLEEAVLEELTQKVAQEHKA 192
Cdd:cd14473   1 TRYLLYLQVKRDILEGRLPCSEETAALLAALALQAEYGDYDPsEHKPKYLSLKRFLPKQL-LKQRKPEEWEKRIVELHKK 79

                        90       100
                ....*....|....*....|
gi 33878926 193 HSGILPAEAELMYINEVERL 212
Cdd:cd14473  80 LRGLSPAEAKLKYLKIARKL 99

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F0 sub-domain and F1 sub-domain, found in FERM (Four.1/Ezrin/Radixin/Moesin) family proteins; FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain is present at the N-terminus of a large and diverse group of proteins that mediate linkage of the cytoskeleton to the plasma membrane. FERM-containing proteins are ubiquitous components of the cytocortex and are involved in cell transport, cell structure and signaling functions. The FERM domain is made up of three sub-domains, F1, F2, and F3. The family corresponds to the F1 sub-domain, which is also called the N-terminal ubiquitin-like structural domain of the FERM domain (FERM_N), which is structurally similar to ubiquitin.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926  21 FVTRIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLDKfANEPLLFFGVM 100
Cdd:cd01765   1 ISCRVRLLDGTELTLEVSKKATGQELFDKVCEKLNLLEKDYFGLFYEDNDGQKHWLDLDKKISKQLKR-SGPYQFYFRVK 79

                .
gi 33878926 101 F 101
Cdd:cd01765  80 F 80

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in FERM domain-containing protein 3 (FRMD3) and similar proteins; FRMD3, also termed band 4.1-like protein 4O, or ovary type protein 4.1 (4.1O), belongs to the 4.1 protein superfamily, which share the highly conserved membrane-association FERM 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). FRMD3 is involved in maintaining cell shape and integrity. It also functions as a tumour suppressor in non-small cell lung carcinoma (NSCLC). Some single nucleotide polymorphisms (SNPs) located in FRMD3 have been associated with diabetic kidney disease (DKD) in different ethnicities.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926  21 FVTRIRLL-DSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLdKFANEPLLFFGV 99
Cdd:cd17102   1 YKCTIRLLdDSEVICCEFKKDTKGQFLLDYVCNYLNLLEKDYFGLRYVDTEKQRHWLDPNKSIYKQL-KGVPPYVLCFRV 79

                ...
gi 33878926 100 MFY 102
Cdd:cd17102  80 KFY 82

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in FERM, RhoGEF and pleckstrin domain-containing protein 1 (FARP1) and similar proteins; This family includes the F1 sub-domain of FERM, RhoGEF and pleckstrin domain-containing proteins FARP1, FARP2, and FERM domain-containing protein 7 (FRMD7). 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. 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. FRMD7 plays an important role in neuronal development and is involved in the regulation of F-actin, neurofilament, and microtubule dynamics. All family members contain a FERM domain that is made up of three sub-domains, F1, F2, and F3. This family corresponds to 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 33878926  24 RIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLdKFANEPLLFFGVMFYV 103
Cdd:cd17098   4 KVQMLDDTVHIFQVQQKALGEVLFDQVCKHLNLLESDYFGLEFTDPEGNKCWLDPEKPILRQV-KRPKDVVFKFVVKFYT 82

                ..
gi 33878926 104 PN 105
Cdd:cd17098  83 PD 84

FERM C-terminal PH-like domain;

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926   224 DNHGNCVHLGIFFMGIFVRNRIGRQAVIYRWNDMGNITHNKSTILVELINK--EETALFHTDDIENAKYISRLFATRHKF 301
Cdd:pfam09380   1 DKEGTDLWLGVSAKGILVYEDNNKILNLFPWREIRKISFKRKKFLIKLRDKssEETLGFYTESSRACKYLWKLCVEQHTF 80

                  ....*
gi 33878926   302 YKQNK 306
Cdd:pfam09380  81 FRLRR 85

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in erythrocyte band 4.1-like protein 4B (EPB41L4B); EPB41L4B, also termed FERM-containing protein CG1, or expressed in high metastatic cells (Ehm2), or Lulu2, 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). EPB41L4B is a positive regulator of keratinocyte adhesion and motility, suggesting a role in wound healing. It also promotes cancer metastasis in melanoma, prostate cancer and breast cancer.

                        10        20        30        40        50        60        70
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 33878926  24 RIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLdKFANEPLLFFGVMFY 102
Cdd:cd17204   4 RVLLLDGTDVSVELPKHAKGQDLFDQIVYHLDLVETDYFGLQFMDAAQVAHWLDHTKPIKKQI-KIGPPYTLHFRIKYY 81

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in erythrocyte membrane protein band 4.1-like protein 1 (EPB41L1) and similar proteins; EPB41L1, also termed neuronal protein 4.1 (4.1N), belongs to the skeletal protein 4.1 family that is involved in cellular processes such as cell adhesion, migration and signaling. It is a cytoskeleton-associated protein that may serve as a tumor suppressor in solid tumors. It suppresses hypoxia-induced epithelial-mesenchymal transition in epithelial ovarian cancer (EOC) cells. The down-regulation of EPB41L1 expression is a critical step for non-small cell lung cancer (NSCLC) development. Moreover, EPB41L1 functions as a linker protein between inositol 1,4,5-trisphosphate receptor type1 (IP3R1) and actin filaments in neurons. EPB41L1 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 33878926  24 RIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLdkfANEPLLF-FGVMFY 102
Cdd:cd17201   5 KVTLLDGSEYECEVEKHARGQVLFDTVCEHLNLLEKDYFGLTFCDTESQKNWLDPSKEIKKQI---RSGPWHFaFTVKFY 81

                ...
gi 33878926 103 VPN 105
Cdd:cd17201  82 PPD 84

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in erythrocyte membrane protein band 4.1-like 5 (EPB41L5); EPB41L5 is a mesenchymal-specific protein that is an integral component of the ARF6-based pathway. It is normally induced during epithelial-mesenchymal transition (EMT) by an EMT-related transcriptional factor, ZEB1, which drives ARF6-based invasion, metastasis and drug resistance. EPB41L5 also binds to paxillin to enhance integrin/paxillin association, and thus promotes focal adhesion dynamics. Moreover, EPB41L5 acts as a substrate for the E3 ubiquitin ligase Mind bomb 1 (Mib1), which is essential for activation of Notch signaling. EPB41L5 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).

                        10        20        30        40        50        60        70
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 33878926  24 RIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLdKFANEPLLFFGVMFY 102
Cdd:cd17205   6 RVSLLDGTDVSVDLPKKAKGQELFEQIMYHLDLIEKDYFGLRFMDSAQVAHWLDVTKSIKKQV-KIGPPYCLHLRVKFY 83

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in erythrocyte membrane protein band 4.1-like 5 (EPB41L5) and similar proteins; This family includes FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in erythrocyte membrane protein band 4.1-like proteins, EPB41L5 and EPB41L4B. EPB41L5 is a mesenchymal-specific protein that is an integral component of the ARF6-based pathway. EPB41L4B is a positive regulator of keratinocyte adhesion and motility, suggesting a role in wound healing. It also promotes cancer metastasis in melanoma, prostate cancer and breast cancer. Both EPB41L5 and EPB41L4B contain 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).

                        10        20        30        40        50        60        70
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 33878926  24 RIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLdKFANEPLLFFGVMFY 102
Cdd:cd17108   4 KVILLDGTDLSIELPKKAKGQELYEQVFYHLDLIEKDYFGLQFMDAAQVQHWLDPTKKIKKQV-KIGPPYTLRFRVKFY 81

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).

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                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926  24 RIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLDKFANEplLFFGVMFYV 103
Cdd:cd17203   5 KVTLLDGSEYTCEVEKRSKGQVLFDKVCEHLNLLEKDYFGLTYRDSENQKNWLDPAKEIKKQIRSGAWQ--FSFNVKFYP 82

                ..
gi 33878926 104 PN 105
Cdd:cd17203  83 PD 84

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in tyrosine-protein phosphatase non-receptor type 4 (PTPN4); PTPN4, also termed protein-tyrosine phosphatase MEG1 (MEG) or PTPase-MEG1, belongs to the non-transmembrane FERM-containing protein-tyrosine phosphatase (PTP) subfamily characterized by a conserved N-terminal FERM domain, a PDZ domain, and a C-terminal PTP catalytic 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). PTPN4 protects cells against apoptosis. It associates with the mitogen-activated protein kinase p38gamma (also known as MAPK12) to form a PTPN4-p38gamma complex that promotes cellular signaling, preventing cell death induction. It also inhibits tyrosine phosphorylation and subsequent cytoplasm translocation of TRIF-related adaptor molecule (TRAM, also known as TICAM2), resulting in the disturbance of TRAM-TRIF interaction. Moreover, PTPN4 negatively regulates cell proliferation and motility through dephosphorylation of CrkI.

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                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926  22 VTRIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQA-RWVELEKPLKKHLdKFANEPLLFFGVM 100
Cdd:cd17194   3 VCNILLLDNTVQAFKVNKHDQGQVLLDLVFKHLDLTERDYFGLQLADDSTDNpRWLDPNKPIRKQL-KRGSPHNLNFRVK 81

                ...
gi 33878926 101 FYV 103
Cdd:cd17194  82 FFV 84

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.

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                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926 201 AELMYINEVERLDGFGQEIFPVKDNHGNCVHLGIFFMGIFVRnRIGRQAVIYRWNDMGNITHNKSTILVELINKEE---T 277
Cdd:cd13192   1 AEDNFLRKAATLETYGVDPHPVKDHRGNQLYLGFTHTGIVTF-QGGKRVHHFRWNDITKFNYEGKMFILHVMQKEEkkhT 79

                        90       100
                ....*....|....*....|....*.
gi 33878926 278 ALFHTDDIENAKYISRLFATRHKFYK 303
Cdd:cd13192  80 LGFKCPTPAACKHLWKCAVEQQAFYT 105

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in FERM domain-containing protein 1 (FRMD1); FRMD1 is an uncharacterized FERM domain-containing protein. 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).

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                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926  33 IECTLSVESTGQECLEAVAQRLELRETHYFGLwFLSKSQQARWVELEKPLKKHL------------DKFANEPLLFFGVM 100
Cdd:cd17197  14 LSLTVGVKATGQELFQQVCELLKIKEAHFFGL-SVVKNNEHIFMDLEQKLSKYFpkewkketgkgtEKFSIPFVACFRVQ 92

                ....*
gi 33878926 101 FYVPN 105
Cdd:cd17197  93 YYVEN 97

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in tyrosine-protein phosphatase non-receptor type 3 (PTPN3); PTPN3, also termed protein-tyrosine phosphatase H1 (PTP-H1), belongs to the non-transmembrane FERM-containing protein-tyrosine phosphatase (PTP) subfamily characterized by a conserved N-terminal FERM domain, a PDZ domain, and a C-terminal PTP catalytic 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). PTPN3 associates with the mitogen-activated protein kinase p38gamma (also known as MAPK12) to form a PTPN3-p38gamma complex that promotes Ras-induced oncogenesis. It may also act as a tumor suppressor in lung cancer through its modulation of epidermal growth factor receptor (EGFR) signaling. Moreover, PTPN3 shows sensitizing effect to anti-estrogens. It dephosphorylates the tyrosine kinase EGFR, disrupts its interaction with the nuclear estrogen receptor, and increases breast cancer sensitivity to small molecule tyrosine kinase inhibitors (TKIs). It also cooperates with vitamin D receptor to stimulate breast cancer growth through their mutual stabilization.

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                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926  22 VTRIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQA-RWVELEKPLKKHLdKFANEPLLFFGVM 100
Cdd:cd17193   3 ICNVHFLDGSVQSFKVNKQDTGQVLLDMAYNHLGLTEREYFGLQHNEDSVDSpRWLEPSKPIRKQL-KGGFPCSLHFRVR 81

                ...
gi 33878926 101 FYV 103
Cdd:cd17193  82 FFI 84

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).

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                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926  24 RIRLLDSNVIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLDKfANEPLLFFGVMFYV 103
Cdd:cd17189   4 KVQMLDDTQEVFEVPQRAPGKVLLDAVCSHLNLVEGDYFGLEFQDHRKVMVWLDLLKPIVKQIRR-PKHVVLRFVVKFFP 82

                ..
gi 33878926 104 PN 105
Cdd:cd17189  83 PD 84

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in moesin and similar proteins; Moesin, also termed membrane-organizing extension spike protein, is a member of the ezrin/radixin/moesin (ERM) family of cytoskeletal proteins that plays an essential role in microvilli formation, T-cell activation, and tumor metastasis through providing a regulated linkage between F-actin and membrane-associated proteins. These proteins may also function in signaling cascades that regulate the assembly of actin stress fibers. The ERM proteins consist of an N-terminal FERM domain, a coiled-coil (CC) domain and a C-terminal tail segment (C-tail) containing a well-defined actin-binding motif. The C-terminal domain can fold back to bind to the FERM domain forming an autoinhibited conformation. The FERM domain is made up of three sub-domains, F1, F2, and F3. This family corresponds to F1 sub-domain, which is also called the N-terminal ubiquitin-like structural domain of the FERM domain (FERM_N). Moesin is involved in mitotic spindle function through stabilizing cell shape and microtubules at the cell cortex. It is required for the formation of F-actin networks that mediate endosome biogenesis or maturation and transport through the degradative pathway.

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                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926  24 RIRLLDSNvIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHlDKFANEPLLF-FGVMFY 102
Cdd:cd17237   5 RVTTMDAE-LEFAIQPNTTGKQLFDQVVKTIGLREVWFFGLQYQDTKGFSTWLKLNKKVTAQ-DVRKESPLLFkFRAKFY 82

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in Ezrin and similar proteins; Ezrin, also termed cytovillin, or villin-2, or p81, is a member of the ezrin/radixin/moesin (ERM) family of cytoskeletal proteins that plays an essential role in microvilli formation, T-cell activation, and tumor metastasis through providing a regulated linkage between F-actin and membrane-associated proteins. These proteins may also function in signaling cascades that regulate the assembly of actin stress fibers. The ERM proteins consist of an N-terminal FERM domain, a coiled-coil (CC) domain and a C-terminal tail segment (C-tail) containing a well-defined actin-binding motif. The C-terminal domain can fold back to bind to the FERM domain forming an autoinhibited conformation. The FERM domain is made up of three sub-domains, F1, F2, and F3. This family corresponds to F1 sub-domain, which is also called the N-terminal ubiquitin-like structural domain of the FERM domain (FERM_N). Ezrin is a tyrosine kinase substrate that functions as a cross-linker between actin cytoskeleton and plasma membrane. It has been implicated in the regulation of the proliferation, apoptosis, adhesion, invasion, metastasis and angiogenesis of cancer cells.

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                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33878926  24 RIRLLDSNvIECTLSVESTGQECLEAVAQRLELRETHYFGLWFLSKSQQARWVELEKPLKKHLDKFANePLLF-FGVMFY 102
Cdd:cd17239   6 RVTTMDAE-LEFAIQPNTTGKQLFDQVVKTIGLREVWYFGLQYVDNKGFPTWLKLDKKVSAQEVRKEN-PLQFkFRAKFY 83