Rho GTPase activating protein 25 and related proteins Pleckstrin homology (PH) domain; RhoGAP25 (also called ArhGap25) like other RhoGaps are involved in cell polarity, cell morphology and cytoskeletal organization. They act as GTPase activators for the Rac-type GTPases by converting them to an inactive GDP-bound state and control actin remodeling by inactivating Rac downstream of Rho leading to suppress leading edge protrusion and promotes cell retraction to achieve cellular polarity and are able to suppress RAC1 and CDC42 activity in vitro. Overexpression of these proteins induces cell rounding with partial or complete disruption of actin stress fibers and formation of membrane ruffles, lamellipodia, and filopodia. This hierarchy contains RhoGAP22, RhoGAP24, and RhoGAP25. Members here contain an N-terminal PH domain followed by a RhoGAP domain and either a BAR or TATA Binding Protein (TBP) Associated Factor 4 (TAF4) 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 1423310398  45 ERPIKMGWLKKQRSIVKNWQQRYFVLRAQQLYYYKDEEDTKPQGCMYLPGCTIKEIATNPEEAGKFVFEIIPASW-DQNR 123
Cdd:cd13263     1 ERPIKSGWLKKQGSIVKNWQQRWFVLRGDQLYYYKDEDDTKPQGTIPLPGNKVKEVPFNPEEPGKFLFEIIPGGGgDRMT 80

                          90       100       110
                  ....*....|....*....|....*....|..
gi 1423310398 124 MGQDSYVLMASSQAEMEEWVKFLRRVAGTPCG 155
Cdd:cd13263    81 SNHDSYLLMANSQAEMEEWVKVIRRVIGSPFG 112

Rho GTPase activating protein 25 and related proteins Pleckstrin homology (PH) domain; RhoGAP25 (also called ArhGap25) like other RhoGaps are involved in cell polarity, cell morphology and cytoskeletal organization. They act as GTPase activators for the Rac-type GTPases by converting them to an inactive GDP-bound state and control actin remodeling by inactivating Rac downstream of Rho leading to suppress leading edge protrusion and promotes cell retraction to achieve cellular polarity and are able to suppress RAC1 and CDC42 activity in vitro. Overexpression of these proteins induces cell rounding with partial or complete disruption of actin stress fibers and formation of membrane ruffles, lamellipodia, and filopodia. This hierarchy contains RhoGAP22, RhoGAP24, and RhoGAP25. Members here contain an N-terminal PH domain followed by a RhoGAP domain and either a BAR or TATA Binding Protein (TBP) Associated Factor 4 (TAF4) 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 1423310398  45 ERPIKMGWLKKQRSIVKNWQQRYFVLRAQQLYYYKDEEDTKPQGCMYLPGCTIKEIATNPEEAGKFVFEIIPASW-DQNR 123
Cdd:cd13263     1 ERPIKSGWLKKQGSIVKNWQQRWFVLRGDQLYYYKDEDDTKPQGTIPLPGNKVKEVPFNPEEPGKFLFEIIPGGGgDRMT 80

                          90       100       110
                  ....*....|....*....|....*....|..
gi 1423310398 124 MGQDSYVLMASSQAEMEEWVKFLRRVAGTPCG 155
Cdd:cd13263    81 SNHDSYLLMANSQAEMEEWVKVIRRVIGSPFG 112

RhoGAP domain; GTPase activator proteins towards Rho/Rac/Cdc42-like small GTPases.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 177 PILVEKCAEFILEHGRNEEGIFRLPGQDNLVKQLRDAFDAGERPSFD-RDTDVHTVASLLKLYLRDLPEPVVPWSQYEGF 255
Cdd:pfam00620   1 PLIVRKCVEYLEKRGLDTEGIFRVSGSASRIKELREAFDRGPDVDLDlEEEDVHVVASLLKLFLRELPEPLLTFELYEEF 80

                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1423310398 256 LLCGQLTNADEakaQQELMKQL-SILPRDNYSLLSYICRFLHEIQLNCAVNKMSVDNLATVIGVNLIRSKV 325
Cdd:pfam00620  81 IEAAKLPDEEE---RLEALRELlRKLPPANRDTLRYLLAHLNRVAQNSDVNKMNAHNLAIVFGPTLLRPPD 148

PH domain; PH stands for pleckstrin homology.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398  47 PIKMGWLKKQRSIVK-NWQQRYFVLRAQQLYYYKDE---EDTKPQGCMYLPGCTIKEIATNPEEAGKFVFEIIPASWDQN 122
Cdd:pfam00169   1 VVKEGWLLKKGGGKKkSWKKRYFVLFDGSLLYYKDDksgKSKEPKGSISLSGCEVVEVVASDSPKRKFCFELRTGERTGK 80

                          90       100
                  ....*....|....*....|....*..
gi 1423310398 123 RmgqdSYVLMASSQAEMEEWVKFLRRV 149
Cdd:pfam00169  81 R----TYLLQAESEEERKDWIKAIQSA 103

helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 547 EEEIDSLQRMVQELRKEIETQKQMYE---EQIKNLEKENYDVWAKVVRLNEELEKEKKKSAALEISLRNMERSREDVEK- 622
Cdd:TIGR04523 411 DEQIKKLQQEKELLEKEIERLKETIIknnSEIKDLTNQDSVKELIIKNLDNTRESLETQLKVLSRSINKIKQNLEQKQKe 490

                          90       100       110
                  ....*....|....*....|....*....|....*
gi 1423310398 623 -------------RNKALEEEVKEFVKSMKEPKTE 644
Cdd:TIGR04523 491 lkskekelkklneEKKELEEKVKDLTKKISSLKEK 525

Rho GTPase activating protein 25 and related proteins Pleckstrin homology (PH) domain; RhoGAP25 (also called ArhGap25) like other RhoGaps are involved in cell polarity, cell morphology and cytoskeletal organization. They act as GTPase activators for the Rac-type GTPases by converting them to an inactive GDP-bound state and control actin remodeling by inactivating Rac downstream of Rho leading to suppress leading edge protrusion and promotes cell retraction to achieve cellular polarity and are able to suppress RAC1 and CDC42 activity in vitro. Overexpression of these proteins induces cell rounding with partial or complete disruption of actin stress fibers and formation of membrane ruffles, lamellipodia, and filopodia. This hierarchy contains RhoGAP22, RhoGAP24, and RhoGAP25. Members here contain an N-terminal PH domain followed by a RhoGAP domain and either a BAR or TATA Binding Protein (TBP) Associated Factor 4 (TAF4) 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 1423310398  45 ERPIKMGWLKKQRSIVKNWQQRYFVLRAQQLYYYKDEEDTKPQGCMYLPGCTIKEIATNPEEAGKFVFEIIPASW-DQNR 123
Cdd:cd13263     1 ERPIKSGWLKKQGSIVKNWQQRWFVLRGDQLYYYKDEDDTKPQGTIPLPGNKVKEVPFNPEEPGKFLFEIIPGGGgDRMT 80

                          90       100       110
                  ....*....|....*....|....*....|..
gi 1423310398 124 MGQDSYVLMASSQAEMEEWVKFLRRVAGTPCG 155
Cdd:cd13263    81 SNHDSYLLMANSQAEMEEWVKVIRRVIGSPFG 112

RhoGAP: GTPase-activator protein (GAP) for Rho-like GTPases; GAPs towards Rho/Rac/Cdc42-like small GTPases. Small GTPases (G proteins) cluster into distinct families, and all act as molecular switches, active in their GTP-bound form but inactive when bound to GDP. The Rho family of small G proteins, which includes Cdc42Hs, activates effectors involved in a wide variety of developmental processes, including regulation of cytoskeleton formation, cell proliferation and the JNK signaling pathway. G proteins generally have a low intrinsic GTPase hydrolytic activity but there are family-specific groups of GAPs that enhance the rate of GTP hydrolysis by several orders of magnitude. The RhoGAPs are one of the major classes of regulators of Rho G proteins.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 177 PILVEKCAEFILEHGRNEEGIFRLPGQDNLVKQLRDAFDAGERPSFDRDTDVHTVASLLKLYLRDLPEPVVPWSQYEGFL 256
Cdd:cd00159     1 PLIIEKCIEYLEKNGLNTEGIFRVSGSASKIEELKKKFDRGEDIDDLEDYDVHDVASLLKLYLRELPEPLIPFELYDEFI 80

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 257 LCgqLTNADEAKAQQELMKQLSILPRDNYSLLSYICRFLHEIQLNCAVNKMSVDNLATVIGVNLIRSKVEDPAVIMRgTP 336
Cdd:cd00159    81 EL--AKIEDEEERIEALKELLKSLPPENRDLLKYLLKLLHKISQNSEVNKMTASNLAIVFAPTLLRPPDSDDELLED-IK 157

                         170
                  ....*....|..
gi 1423310398 337 QIQRVMTMMIRD 348
Cdd:cd00159   158 KLNEIVEFLIEN 169

Rho GTPase activating protein 2 Pleckstrin homology (PH) domain; RhoGAP2 (also called RhoGap22 or ArhGap22) are involved in cell polarity, cell morphology and cytoskeletal organization. They activate a GTPase belonging to the RAS superfamily of small GTP-binding proteins. The encoded protein is insulin-responsive, is dependent on the kinase Akt, and requires the Akt-dependent 14-3-3 binding protein which binds sequentially to two serine residues resulting in regulation of cell motility. Members here contain an N-terminal PH domain followed by a RhoGAP domain and either a BAR or TATA Binding Protein (TBP) Associated Factor 4 (TAF4) 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 1423310398  45 ERPIKMGWLKKQRSIVKNWQQRYFVLRAQQLYYYKDEEDTKPQGCMYLPGCTIKEIATNPEEAGKFVFEIIPASW---DQ 121
Cdd:cd13378     1 EGVLKAGWLKKQRSIMKNWQQRWFVLRGDQLFYYKDEEETKPQGCISLQGSQVNELPPNPEEPGKHLFEILPGGAgdrEK 80

                          90       100       110
                  ....*....|....*....|....*....|....
gi 1423310398 122 NRMGQDSYVLMASSQAEMEEWVKFLRRVAGTPCG 155
Cdd:cd13378    81 VPMNHEAFLLMANSQSDMEDWVKAIRRVIWAPFG 114

RhoGAP_FAM13A1a: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of FAM13A1, isoform a-like proteins. The function of FAM13A1a is unknown. Small GTPases cluster into distinct families, and all act as molecular switches, active in their GTP-bound form but inactive when GDP-bound. The Rho family of GTPases activates effectors involved in a wide variety of developmental processes, including regulation of cytoskeleton formation, cell proliferation and the JNK signaling pathway. GTPases generally have a low intrinsic GTPase hydrolytic activity but there are family-specific groups of GAPs that enhance the rate of GTP hydrolysis by up several orders of magnitude.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 156 VFGQRLDETvayeQKFG--PHLVPILVEKCAEFILEHGRNEEGIFRLPGQDNLVKQLRDAFDAGERPSFDRDTDVHTVAS 233
Cdd:cd04393     2 VFGVPLQEL----QQAGqpENGVPAVVRHIVEYLEQHGLEQEGLFRVNGNAETVEWLRQRLDSGEEVDLSKEADVCSAAS 77

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 234 LLKLYLRDLPEPVVPWSQYEGFLLCGQLTNADEAKAqQELMKQLSILPRDNYSLLSYICRFLHEIQLNCAVNKMSVDNLA 313
Cdd:cd04393    78 LLRLFLQELPEGLIPASLQIRLMQLYQDYNGEDEFG-RKLRDLLQQLPPVNYSLLKFLCHFLSNVASQHHENRMTAENLA 156

                         170
                  ....*....|....*.
gi 1423310398 314 TVIGVNL--IRSKVED 327
Cdd:cd04393   157 AVFGPDVfhVYTDVED 172

RhoGAP_ARHGAP6: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of ArhGAP6-like proteins. ArhGAP6 shows GAP activity towards RhoA, but not towards Cdc42 and Rac1. ArhGAP6 is often deleted in microphthalmia with linear skin defects syndrome (MLS); MLS is a severe X-linked developmental disorder. Small GTPases cluster into distinct families, and all act as molecular switches, active in their GTP-bound form but inactive when GDP-bound. The Rho family of GTPases activates effectors involved in a wide variety of developmental processes, including regulation of cytoskeleton formation, cell proliferation and the JNK signaling pathway. GTPases generally have a low intrinsic GTPase hydrolytic activity but there are family-specific groups of GAPs that enhance the rate of GTP hydrolysis by several orders of magnitude.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 176 VPILVEKCAEFILEHGRNEEGIFRLPGQDNLVKQLRDAFDAGERPSFDRDTDVHTVASLLKLYLRDLPEPVVPWSQYEGF 255
Cdd:cd04376     9 VPRLVESCCQHLEKHGLQTVGIFRVGSSKKRVRQLREEFDRGIDVVLDENHSVHDVAALLKEFFRDMPDPLLPRELYTAF 88

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 256 LLCGQLTNADEAKAQQELmkqLSILPRDNYSLLSYICRFLHEIQLNCAV-----------NKMSVDNLATVIGVNLIR-- 322
Cdd:cd04376    89 IGTALLEPDEQLEALQLL---IYLLPPCNCDTLHRLLKFLHTVAEHAADsidedgqevsgNKMTSLNLATIFGPNLLHkq 165

                         170       180       190       200
                  ....*....|....*....|....*....|....*....|.
gi 1423310398 323 ----SKVEDPAVIMRGTPQIQRVMTMMIRDHEVLFPKSKDI 359
Cdd:cd04376   166 ksgeREFVQASLRIEESTAIINVVQTMIDNYEELFMVSPEL 206

RhoGAP-p50rhoGAP: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of p50RhoGAP-like proteins; p50RhoGAP, also known as RhoGAP-1, contains a C-terminal RhoGAP domain and an N-terminal Sec14 domain which binds phosphatidylinositol 3,4,5-trisphosphate (PtdIns(3,4,5)P3). It is ubiquitously expressed and preferentially active on Cdc42. This subgroup also contains closely related ARHGAP8. Small GTPases cluster into distinct families, and all act as molecular switches, active in their GTP-bound form but inactive when GDP-bound. The Rho family of GTPases activates effectors involved in a wide variety of developmental processes, including regulation of cytoskeleton formation, cell proliferation and the JNK signaling pathway. GTPases generally have a low intrinsic GTPase hydrolytic activity but there are family-specific groups of GAPs that enhance the rate of GTP hydrolysis by several orders of magnitude.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 172 GPHLVPILVEKCAEFILEHGRNEEGIFRLPGQDNLVKQLRDAFDAGERPSFDRDTDVHTVASLLKLYLRDLPEPVVPWSQ 251
Cdd:cd04404    19 EQEPIPPVVRETVEYLQAHALTTEGIFRRSANTQVVKEVQQKYNMGEPVDFDQYEDVHLPAVILKTFLRELPEPLLTFDL 98

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 252 YEGFLLCGQLTNADEAKAQQELMKQlsiLPRDNYSLLSYICRFLHEIQLNCAVNKMSVDNLATVIGVNLIRSKveDPAVI 331
Cdd:cd04404    99 YDDIVGFLNVDKEERVERVKQLLQT---LPEENYQVLKYLIKFLVQVSAHSDQNKMTNSNLAVVFGPNLLWAK--DASMS 173

                         170       180
                  ....*....|....*....|..
gi 1423310398 332 MRGTPQIQRVMTMMIRDHEVLF 353
Cdd:cd04404   174 LSAINPINTFTKFLLDHQDEIF 195

RhoGAP_ARHGAP21: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of ArhGAP21-like proteins. ArhGAP21 is a multi-domain protein, containing RhoGAP, PH and PDZ domains, and is believed to play a role in the organization of the cell-cell junction complex. It has been shown to function as a GAP of Cdc42 and RhoA, and to interact with alpha-catenin and Arf6. Small GTPases cluster into distinct families, and all act as molecular switches, active in their GTP-bound form but inactive when GDP-bound. The Rho family of GTPases activates effectors involved in a wide variety of developmental processes, including regulation of cytoskeleton formation, cell proliferation and the JNK signaling pathway. GTPases generally have a low intrinsic GTPase hydrolytic activity but there are family-specific groups of GAPs that enhance the rate of GTP hydrolysis by several orders of magnitude.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 156 VFGQRLDET-VAYEQKFgphlVPILVEKCAEFILEHGRNEEGIFRLPGQDNLVKQLRDAFDAG--ERPSFD-RDTDVHTV 231
Cdd:cd04395     1 TFGVPLDDCpPSSENPY----VPLIVEVCCNIVEARGLETVGIYRVPGNNAAISALQEELNRGgfDIDLQDpRWRDVNVV 76

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 232 ASLLKLYLRDLPEPVVPWSQYEGFLLCGQLTNADEAkaQQELMKQLSILPRDNYSLLSYICRFLHEIQLNCAVNKMSVDN 311
Cdd:cd04395    77 SSLLKSFFRKLPEPLFTNELYPDFIEANRIEDPVER--LKELRRLIHSLPDHHYETLKHLIRHLKTVADNSEVNKMEPRN 154

                         170
                  ....*....|..
gi 1423310398 312 LATVIGVNLIRS 323
Cdd:cd04395   155 LAIVFGPTLVRT 166

RhoGAP_KIAA1688: GTPase-activator protein (GAP) domain for Rho-like GTPases found in KIAA1688-like proteins; KIAA1688 is a protein of unknown function that contains a RhoGAP domain and a myosin tail homology 4 (MyTH4) domain. Small GTPases cluster into distinct families, and all act as molecular switches, active in their GTP-bound form but inactive when GDP-bound. The Rho family of GTPases activates effectors involved in a wide variety of developmental processes, including regulation of cytoskeleton formation, cell proliferation and the JNK signaling pathway. GTPases generally have a low intrinsic GTPase hydrolytic activity but there are family-specific groups of GAPs that enhance the rate of GTP hydrolysis by several orders of magnitude.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 157 FGQRLDETVAYEQKFGPHL-VPILVEKCAEFILE-HGRNEEGIFRLPGQDNLVKQLRDAFDAGERPSFDRDtDVHTVASL 234
Cdd:cd04389     1 FGSSLEEIMDRQKEKYPELkLPWILTFLSEKVLAlGGFQTEGIFRVPGDIDEVNELKLRVDQWDYPLSGLE-DPHVPASL 79

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 235 LKLYLRDLPEPVVPWSQYEGfllCgqLTNADEAKAQQELMKQLSILprdNYSLLSYICRFLHE--IQLNCAVNKMSVDNL 312
Cdd:cd04389    80 LKLWLRELEEPLIPDALYQQ---C--ISASEDPDKAVEIVQKLPII---NRLVLCYLINFLQVfaQPENVAHTKMDVSNL 151

                         170       180       190
                  ....*....|....*....|....*....|....
gi 1423310398 313 ATVIGVNLIRSKVEDPAVIMRGTPQIQRVMTMMI 346
Cdd:cd04389   152 AMVFAPNILRCTSDDPRVIFENTRKEMSFLRTLI 185

RhoGAP_CdGAP: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of CdGAP-like proteins; CdGAP contains an N-terminal RhoGAP domain and a C-terminal proline-rich region, and it is active on both Cdc42 and Rac1 but not RhoA. CdGAP is recruited to focal adhesions via the interaction with the scaffold protein actopaxin (alpha-parvin). Small GTPases cluster into distinct families, and all act as molecular switches, active in their GTP-bound form but inactive when GDP-bound. The Rho family of GTPases activates effectors involved in a wide variety of developmental processes, including regulation of cytoskeleton formation, cell proliferation and the JNK signaling pathway. GTPases generally have a low intrinsic GTPase hydrolytic activity but there are family-specific groups of GAPs that enhance the rate of GTP hydrolysis by several orders of magnitude.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 176 VPILVEKCAEFILEHGRnEEGIFRLPGQDNLVKQLRDAFDAGERPSFDRDT---DVHTVASLLKLYLRDLPEPVVPWSQY 252
Cdd:cd04384    18 VPQVLKSCTEFIEKHGI-VDGIYRLSGIASNIQRLRHEFDSEQIPDLTKDVyiqDIHSVSSLCKLYFRELPNPLLTYQLY 96

                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1423310398 253 EGFLlcgQLTNADEAKAQQELMKQ-LSILPRDNYSLLSYICRFLHEIQLNCAVNKMSVDNLATVIGVNLIRSK 324
Cdd:cd04384    97 EKFS---EAVSAASDEERLEKIHDvIQQLPPPHYRTLEFLMRHLSRLAKYCSITNMHAKNLAIVWAPNLLRSK 166

RhoGAP_srGAP: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain present in srGAPs. srGAPs are components of the intracellular part of Slit-Robo signalling pathway that is important for axon guidance and cell migration. srGAPs contain an N-terminal FCH domain, a central RhoGAP domain and a C-terminal SH3 domain; this SH3 domain interacts with the intracellular proline-rich-tail of the Roundabout receptor (Robo). This interaction with Robo then activates the rhoGAP domain which in turn inhibits Cdc42 activity. Small GTPases cluster into distinct families, and all act as molecular switches, active in their GTP-bound form but inactive when GDP-bound. The Rho family of GTPases activates effectors involved in a wide variety of developmental processes, including regulation of cytoskeleton formation, cell proliferation and the JNK signaling pathway. GTPases generally have a low intrinsic GTPase hydrolytic activity but there are family-specific groups of GAPs that enhance the rate of GTP hydrolysis by several orders of magnitude.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 155 GVFGQRLDETVayeqKFGPHLVPILVEKCAEFILEHGRNEEGIFRLPGQDNLVKQLRDAFDAGERPSFD--RDTDVHTVA 232
Cdd:cd04383     1 KLFNGSLEEYI----QDSGQAIPLVVESCIRFINLYGLQHQGIFRVSGSQVEVNDIKNAFERGEDPLADdqNDHDINSVA 76

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 233 SLLKLYLRDLPEPVVPWSQYEGFLLCGQLTNADEaKAQQeLMKQLSILPRDNYSLLSYICRFLHEIQLNCAVNKMSVDNL 312
Cdd:cd04383    77 GVLKLYFRGLENPLFPKERFEDLMSCVKLENPTE-RVHQ-IREILSTLPRSVIIVMRYLFAFLNHLSQFSDENMMDPYNL 154

                         170
                  ....*....|
gi 1423310398 313 ATVIGVNLIR 322
Cdd:cd04383   155 AICFGPTLMP 164

RhoGAP_Bcr: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of Bcr (breakpoint cluster region protein)-like proteins. Bcr is a multidomain protein with a variety of enzymatic functions. It contains a RhoGAP and a Rho GEF domain, a Ser/Thr kinase domain, an N-terminal oligomerization domain, and a C-terminal PDZ binding domain, in addition to PH and C2 domains. Bcr is a negative regulator of: i) RacGTPase, via the Rho GAP domain, ii) the Ras-Raf-MEK-ERK pathway, via phosphorylation of the Ras binding protein AF-6, and iii) the Wnt signaling pathway through binding beta-catenin. Bcr can form a complex with beta-catenin and Tcf1. The Wnt signaling pathway is involved in cell proliferation, differentiation, and cell renewal. Bcr was discovered as a fusion partner of Abl. The Bcr-Abl fusion is characteristic for a large majority of chronic myelogenous leukemias (CML). Small GTPases cluster into distinct families, and all act as molecular switches, active in their GTP-bound form but inactive when GDP-bound. The Rho family of GTPases activates effectors involved in a wide variety of developmental processes, including regulation of cytoskeleton formation, cell proliferation and the JNK signaling pathway. GTPases generally have a low intrinsic GTPase hydrolytic activity but there are family-specific groups of GAPs that enhance the rate of GTP hydrolysis by several orders of magnitude.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 175 LVPILVEKCAEFILEHGRNEEGIFRLPGQDNLVKQLRDAFDAGERP--SFDRDTDVHTVASLLKLYLRDLPEPVVPWSQY 252
Cdd:cd04387    15 KVPYIVRQCVEEVERRGMEEVGIYRISGVATDIQALKAAFDTNNKDvsVMLSEMDVNAIAGTLKLYFRELPEPLFTDELY 94

                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1423310398 253 EGFLlcGQLTNADEAKAQQELMKQLSILPRDNYSLLSYICRFLHEIQLNCAVNKMSVDNLATVIGVNLIRSKVED 327
Cdd:cd04387    95 PNFA--EGIALSDPVAKESCMLNLLLSLPDPNLVTFLFLLHHLKRVAEREEVNKMSLHNLATVFGPTLLRPSEKE 167

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 1423310398   47 PIKMGWLKKQ-RSIVKNWQQRYFVLRAQQLYYYKDEE---DTKPQGCMYLPGCTIKEIATNPEEAGKFVFEIIPASwdqn 122
Cdd:smart00233   1 VIKEGWLYKKsGGGKKSWKKRYFVLFNSTLLYYKSKKdkkSYKPKGSIDLSGCTVREAPDPDSSKKPHCFEIKTSD---- 76

                           90       100
                   ....*....|....*....|....*...
gi 1423310398  123 rmgQDSYVLMASSQAEMEEWVKFLRRVA 150
Cdd:smart00233  77 ---RKTLLLQAESEEEREKWVEALRKAI 101

RhoGAP_fSAC7_BAG7: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of fungal SAC7 and BAG7-like proteins. Both proteins are GTPase activating proteins of Rho1, but differ functionally in vivo: SAC7, but not BAG7, is involved in the control of Rho1-mediated activation of the PKC-MPK1 pathway. Small GTPases cluster into distinct families, and all act as molecular switches, active in their GTP-bound form but inactive when GDP-bound. The Rho family of GTPases activates effectors involved in a wide variety of developmental processes, including regulation of cytoskeleton formation, cell proliferation and the JNK signaling pathway. GTPases generally have a low intrinsic GTPase hydrolytic activity but there are family-specific groups of GAPs that enhance the rate of GTP hydrolysis by several orders of magnitude.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 156 VFGQRLDETVAYEQ-------------KFGphLVPILVEKCAEFILEHGRNEEGIFRLPGQDNLVKQLRDAFDAGER--P 220
Cdd:cd04396     1 VFGVSLEESLKYASvaisivdedgeqyVYG--YIPVVVAKCGVYLKENATEVEGIFRVAGSSKRIRELQLIFSTPPDygK 78

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 221 SFDRDT-DVHTVASLLKLYLRDLPEPVVPWSQYEGF-------------LLCGQLTNADEAKAQQELMKQLSI--LPRDN 284
Cdd:cd04396    79 SFDWDGyTVHDAASVLRRYLNNLPEPLVPLDLYEEFrnplrkrprilqyMKGRINEPLNTDIDQAIKEYRDLItrLPNLN 158

                         170       180       190
                  ....*....|....*....|....*....|.
gi 1423310398 285 YSLLSYICRFLHEIQLNCAVNKMSVDNLATV 315
Cdd:cd04396   159 RQLLLYLLDLLAVFARNSDKNLMTASNLAAI 189

RhoGAP-ARHGAP11A: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of ArhGAP11A-like proteins. The mouse homolog of human ArhGAP11A has been detected as a gene exclusively expressed in immature ganglion cells, potentially playing a role in retinal development. The exact function of ArhGAP11A is unknown. Small GTPases cluster into distinct families, and all act as molecular switches, active in their GTP-bound form but inactive when GDP-bound. The Rho family of GTPases activates effectors involved in a wide variety of developmental processes, including regulation of cytoskeleton formation, cell proliferation and the JNK signaling pathway. GTPases generally have a low intrinsic GTPase hydrolytic activity but there are family-specific groups of GAPs that enhance the rate of GTP hydrolysis by several orders of magnitude.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1423310398 174 HLVPILVEKCaEFILEHgRNEEGIFRLPGQDNLVKQLRDAFDAGErpsfDRDTDVHT--VASLLKLYLRDLPEPVVPWSQ 251
Cdd:cd04394    19 NVPKFLVDAC-TFLLDH-LSTEGLFRKSGSVVRQKELKAKLEGGE----ACLSSALPcdVAGLLKQFFRELPEPLLPYDL 92

                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1423310398 252 YEGFLLCGQLTNADEAKAQQELMKQLsiLPRDNYSLLSYICRFLHEIQLNCAVNKMSVDNLATVIGVNLIRS 323
Cdd:cd04394    93 HEALLKAQELPTDEERKSATLLLTCL--LPDEHVNTLRYFFSFLYDVAQRCSENKMDSSNLAVIFAPNLFQS 162

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 1423310398  41 PNPLERPIKMGWLKKQR-SIVKNWQQRYFVLRAQQLYYYKDEEDTKPQGCMYLPGCTIKEIATNPEEAGKFVFEIipasw 119
Cdd:cd13248     1 RDPNAPVVMSGWLHKQGgSGLKNWRKRWFVLKDNCLYYYKDPEEEKALGSILLPSYTISPAPPSDEISRKFAFKA----- 75

                          90       100       110
                  ....*....|....*....|....*....|.
gi 1423310398 120 dqNRMGQDSYVLMASSQAEMEEWVKFLRRVA 150
Cdd:cd13248    76 --EHANMRTYYFAADTAEEMEQWMNAMSLAA 104