RhoGAP_ARHGAP27_15_12_9: GTPase-activator protein (GAP) domain for Rho-like GTPases found in ARHGAP27 (also called CAMGAP1), ARHGAP15, 12 and 9-like proteins; This subgroup of ARHGAPs are multidomain proteins that contain RhoGAP, PH, SH3 and WW domains. Most members that are studied show GAP activity towards Rac1, some additionally show activity towards Cdc42. 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 568914437 262 FGSHLHTVCEREHSTVPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKLRFIVNQEEKLNLDDSQWEDIHVVTGALKMF 341
Cdd:cd04403    1 FGCHLEALCQRENSTVPKFVRLCIEAVEKRGLDVDGIYRVSGNLAVIQKLRFAVDHDEKLDLDDSKWEDIHVITGALKLF 80

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 342 FRELSEPLFPYSFFERFVEAIKKQDSNEKIETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLGIVFGPTL 421
Cdd:cd04403   81 FRELPEPLFPYSLFNDFVAAIKLSDYEQRVSAVKDLIKSLPKPNHDTLKMLFRHLCRVIEHGEKNRMTTQNLAIVFGPTL 160

                        170       180
                 ....*....|....*....|....*..
gi 568914437 422 LRAENESGNVAVHMVYQNQIAEFMLTE 448
Cdd:cd04403  161 LRPEQETGNIAVHMVYQNQIVELILLE 187

RhoGAP_ARHGAP27_15_12_9: GTPase-activator protein (GAP) domain for Rho-like GTPases found in ARHGAP27 (also called CAMGAP1), ARHGAP15, 12 and 9-like proteins; This subgroup of ARHGAPs are multidomain proteins that contain RhoGAP, PH, SH3 and WW domains. Most members that are studied show GAP activity towards Rac1, some additionally show activity towards Cdc42. 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 568914437 262 FGSHLHTVCEREHSTVPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKLRFIVNQEEKLNLDDSQWEDIHVVTGALKMF 341
Cdd:cd04403    1 FGCHLEALCQRENSTVPKFVRLCIEAVEKRGLDVDGIYRVSGNLAVIQKLRFAVDHDEKLDLDDSKWEDIHVITGALKLF 80

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 342 FRELSEPLFPYSFFERFVEAIKKQDSNEKIETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLGIVFGPTL 421
Cdd:cd04403   81 FRELPEPLFPYSLFNDFVAAIKLSDYEQRVSAVKDLIKSLPKPNHDTLKMLFRHLCRVIEHGEKNRMTTQNLAIVFGPTL 160

                        170       180
                 ....*....|....*....|....*..
gi 568914437 422 LRAENESGNVAVHMVYQNQIAEFMLTE 448
Cdd:cd04403  161 LRPEQETGNIAVHMVYQNQIVELILLE 187

Beta-spectrin pleckstrin homology (PH) domain; ARHGAP family genes encode Rho/Rac/Cdc42-like GTPase activating proteins with RhoGAP domain. The ARHGAP members here all have a PH domain upstream of their C-terminal RhoGAP domain. Some have additional N-terminal SH3 and WW domains. The members here include: ARHGAP9, ARHGAP12, ARHGAP15, and ARHGAP27. ARHGAP27 and ARHGAP12 shared the common-domain structure, consisting of SH3, WW, PH, and RhoGAP domains. The PH domain of ArhGAP9 employs a non-canonical phosphoinositide binding mechanism, a variation of the spectrin- Ins(4,5)P2-binding mode, that gives rise to a unique PI binding profile, namely a preference for both PI(4,5)P2 and the PI 3-kinase products PI(3,4,5)P3 and PI(3,4)P2. This lipid binding mechanism is also employed by the PH domain of Tiam1 and Slm1. 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 568914437  66 EKEGYLQKAKIADGGKKLRKNWSTSWIVLSGRKIEFYKDSKQQALPNMKTRHNVESVDLCGAHIEWAKEKSSRKSVFQIT 145
Cdd:cd13233    1 EKQGLLNKTKIAENGKKLRKNWSTSWVVLTSSHLLFYKDAKSAAKSGNPYSKPESSVDLRGASIEWAKEKSSRKNVFQIS 80

                         90       100       110
                 ....*....|....*....|....*....|
gi 568914437 146 TVSGNEFLLQSDIDFLILDWFQAIKNAIDR 175
Cdd:cd13233   81 TVTGTEFLLQSDNDTEIREWFDAIKAVIQR 110

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 568914437    65 VEKEGYLQKAkiadgGKKLRKNWSTSWIVLSGRKIEFYKDSKQQALPNMKtrhnvESVDLCGAHIEWAKEKSS--RKSVF 142
Cdd:smart00233   1 VIKEGWLYKK-----SGGGKKSWKKRYFVLFNSTLLYYKSKKDKKSYKPK-----GSIDLSGCTVREAPDPDSskKPHCF 70

                           90       100       110
                   ....*....|....*....|....*....|..
gi 568914437   143 QITTVSGNEFLLQSDIDFLILDWFQAIKNAID 174
Cdd:smart00233  71 EIKTSDRKTLLLQAESEEEREKWVEALRKAIA 102

RhoGAP_ARHGAP27_15_12_9: GTPase-activator protein (GAP) domain for Rho-like GTPases found in ARHGAP27 (also called CAMGAP1), ARHGAP15, 12 and 9-like proteins; This subgroup of ARHGAPs are multidomain proteins that contain RhoGAP, PH, SH3 and WW domains. Most members that are studied show GAP activity towards Rac1, some additionally show activity towards Cdc42. 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 568914437 262 FGSHLHTVCEREHSTVPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKLRFIVNQEEKLNLDDSQWEDIHVVTGALKMF 341
Cdd:cd04403    1 FGCHLEALCQRENSTVPKFVRLCIEAVEKRGLDVDGIYRVSGNLAVIQKLRFAVDHDEKLDLDDSKWEDIHVITGALKLF 80

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 342 FRELSEPLFPYSFFERFVEAIKKQDSNEKIETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLGIVFGPTL 421
Cdd:cd04403   81 FRELPEPLFPYSLFNDFVAAIKLSDYEQRVSAVKDLIKSLPKPNHDTLKMLFRHLCRVIEHGEKNRMTTQNLAIVFGPTL 160

                        170       180
                 ....*....|....*....|....*..
gi 568914437 422 LRAENESGNVAVHMVYQNQIAEFMLTE 448
Cdd:cd04403  161 LRPEQETGNIAVHMVYQNQIVELILLE 187

Beta-spectrin pleckstrin homology (PH) domain; ARHGAP family genes encode Rho/Rac/Cdc42-like GTPase activating proteins with RhoGAP domain. The ARHGAP members here all have a PH domain upstream of their C-terminal RhoGAP domain. Some have additional N-terminal SH3 and WW domains. The members here include: ARHGAP9, ARHGAP12, ARHGAP15, and ARHGAP27. ARHGAP27 and ARHGAP12 shared the common-domain structure, consisting of SH3, WW, PH, and RhoGAP domains. The PH domain of ArhGAP9 employs a non-canonical phosphoinositide binding mechanism, a variation of the spectrin- Ins(4,5)P2-binding mode, that gives rise to a unique PI binding profile, namely a preference for both PI(4,5)P2 and the PI 3-kinase products PI(3,4,5)P3 and PI(3,4)P2. This lipid binding mechanism is also employed by the PH domain of Tiam1 and Slm1. 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 568914437  66 EKEGYLQKAKIADGGKKLRKNWSTSWIVLSGRKIEFYKDSKQQALPNMKTRHNVESVDLCGAHIEWAKEKSSRKSVFQIT 145
Cdd:cd13233    1 EKQGLLNKTKIAENGKKLRKNWSTSWVVLTSSHLLFYKDAKSAAKSGNPYSKPESSVDLRGASIEWAKEKSSRKNVFQIS 80

                         90       100       110
                 ....*....|....*....|....*....|
gi 568914437 146 TVSGNEFLLQSDIDFLILDWFQAIKNAIDR 175
Cdd:cd13233   81 TVTGTEFLLQSDNDTEIREWFDAIKAVIQR 110

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 568914437 278 PWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKLRFIVNQEEklNLDDSQWEDIHVVTGALKMFFRELSEPLFPYSFFER 357
Cdd:cd00159    1 PLIIEKCIEYLEKNGLNTEGIFRVSGSASKIEELKKKFDRGE--DIDDLEDYDVHDVASLLKLYLRELPEPLIPFELYDE 78

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 358 FVEAIKKQDSNEKIETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLGIVFGPTLLRAENESGNVAVHMVY 437
Cdd:cd00159   79 FIELAKIEDEEERIEALKELLKSLPPENRDLLKYLLKLLHKISQNSEVNKMTASNLAIVFAPTLLRPPDSDDELLEDIKK 158

                        170
                 ....*....|.
gi 568914437 438 QNQIAEFMLTE 448
Cdd:cd00159  159 LNEIVEFLIEN 169

RhoGAP_fRGD1: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of fungal RGD1-like proteins. Yeast Rgd1 is a GAP protein for Rho3 and Rho4 and plays a role in low-pH response. 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 568914437 262 FGSHLHTVCEREHSTVPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKLR--FIVNQEEKLNLDDSQWE-DIHVVTGAL 338
Cdd:cd04398    1 FGVPLEDLILREGDNVPNIVYQCIQAIENFGLNLEGIYRLSGNVSRVNKLKelFDKDPLNVLLISPEDYEsDIHSVASLL 80

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 339 KMFFRELSEPLFPYSFFERFVEAIKKQDSNEKIETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLGIVFG 418
Cdd:cd04398   81 KLFFRELPEPLLTKALSREFIEAAKIEDESRRRDALHGLINDLPDANYATLRALMFHLARIKEHESVNRMSVNNLAIIWG 160

                        170       180       190
                 ....*....|....*....|....*....|....*
gi 568914437 419 PTLLraeNESGNVAVHMVYQNQIAEFMLTEYDKIF 453
Cdd:cd04398  161 PTLM---NAAPDNAADMSFQSRVIETLLDNAYQIF 192

RhoGAP_Graf: GTPase-activator protein (GAP) domain for Rho-like GTPases found in GRAF (GTPase regulator associated with focal adhesion kinase); Graf is a multi-domain protein, containing SH3 and PH domains, that binds focal adhesion kinase and influences cytoskeletal changes mediated by Rho proteins. Graf exhibits GAP activity toward RhoA and Cdc42, but only weakly activates Rac1. 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 568914437 280 FVKQCIEAVEKRGLDVDGIYRVSGNLATIQKLRFIVNQEEK-----LNLDDSQWEdIHVVTGALKMFFRELSEPLFPYSF 354
Cdd:cd04374   31 FVRKCIEAVETRGINEQGLYRVVGVNSKVQKLLSLGLDPKTstpgdVDLDNSEWE-IKTITSALKTYLRNLPEPLMTYEL 109

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 355 FERFVEAIKKQDSNEKIETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLGIVFGPTLLRAENESgnVAVH 434
Cdd:cd04374  110 HNDFINAAKSENLESRVNAIHSLVHKLPEKNREMLELLIKHLTNVSDHSKKNLMTVSNLGVVFGPTLLRPQEET--VAAI 187

                        170
                 ....*....|....
gi 568914437 435 M--VYQNQIAEFML 446
Cdd:cd04374  188 MdiKFQNIVVEILI 201

RhoGAP_p190: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of p190-like proteins. p190, also named RhoGAP5, plays a role in neuritogenesis and axon branch stability. p190 shows a preference for Rho, over Rac and Cdc42, and consists of an N-terminal GTPase domain and a C-terminal GAP domain. The central portion of p190 contains important regulatory phosphorylation sites. 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 568914437 262 FGSHLHTVCEREhSTVPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKLRFIVNQEEKLNLDDSQWEdIHVVTGALKMF 341
Cdd:cd04373    1 FGVPLANVVTSE-KPIPIFLEKCVEFIEATGLETEGIYRVSGNKTHLDSLQKQFDQDHNLDLVSKDFT-VNAVAGALKSF 78

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 342 FRELSEPLFPYSFFERFVEAIKKQDSNEKIETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLGIVFGPTL 421
Cdd:cd04373   79 FSELPDPLIPYSMHLELVEAAKINDREQRLHALKELLKKFPPENFDVFKYVITHLNKVSQNSKVNLMTSENLSICFWPTL 158

                        170       180
                 ....*....|....*....|....
gi 568914437 422 LRAENES-GNVAVHMVYQNQIAEF 444
Cdd:cd04373  159 MRPDFTSmEALSATRIYQTIIETF 182

RhoGAP_GMIP_PARG1: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of GMIP (Gem interacting protein) and PARG1 (PTPL1-associated RhoGAP1). GMIP plays important roles in neurite growth and axonal guidance, and interacts with Gem, a member of the RGK subfamily of the Ras small GTPase superfamily, through the N-terminal half of the protein. GMIP contains a C-terminal RhoGAP domain. GMIP inhibits RhoA function, but is inactive towards Rac1 and Cdc41. PARG1 interacts with Rap2, also a member of the Ras small GTPase superfamily whose exact function is unknown, and shows strong preference for Rho. 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 568914437 262 FGSHLHTVCEREHSTVPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKL-RFIVNQEEKLNLDDSQWEDIhvvTGALKM 340
Cdd:cd04378    1 FGVDFSQVPRDFPDEVPFIIKKCTSEIENRALGVQGIYRVSGSKARVEKLcQAFENGKDLVELSELSPHDI---SSVLKL 77

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 341 FFRELSEPLFPYSFFERFV----------EAIKKQDSNEKIET----MRSLVKRLPPPNHDTMKILFRHLTKIVAKASQN 406
Cdd:cd04378   78 FLRQLPEPLILFRLYNDFIalakeiqrdtEEDKAPNTPIEVNRiirkLKDLLRQLPASNYNTLQHLIAHLYRVAEQFEEN 157

                        170       180       190       200
                 ....*....|....*....|....*....|....*....|....*
gi 568914437 407 LMSTQSLGIVFGPTLLRAENESGNVAVHMV----YQNQIAEFMLT 447
Cdd:cd04378  158 KMSPNNLGIVFGPTLIRPRPGDADVSLSSLvdygYQARLVEFLIT 202

RhoGAP_myosin_IX: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain present in class IX myosins. Class IX myosins contain a characteristic head domain, a neck domain, a tail domain which contains a C6H2-zinc binding motif and a RhoGAP domain. Class IX myosins are single-headed, processive myosins that are partly cytoplasmic, and partly associated with membranes and the actin cytoskeleton. Class IX myosins are implicated in the regulation of neuronal morphogenesis and function of sensory systems, like the inner ear. There are two major isoforms, myosin IXA and IXB with several splice variants, which are both expressed in developing neurons. 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 568914437 273 EHSTVPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKLRFIVNQE-EKLNLDDSQwedIHVVTGALKMFFRELSEPLFP 351
Cdd:cd04377   11 EDRSVPLVLEKLLEHIEMHGLYTEGIYRKSGSANKIKELRQGLDTDpDSVNLEDYP---IHVITSVLKQWLRELPEPLMT 87

                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 568914437 352 YSFFERFVEAIKKQDSNEKIETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLGIVFGPTLLR 423
Cdd:cd04377   88 FELYENFLRAMELEEKQERVRALYSVLEQLPRANLNTLERLIFHLVRVALQEEVNRMSANALAIVFAPCILR 159

RhoGAP_GMIP: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of GMIP (Gem interacting protein). GMIP plays important roles in neurite growth and axonal guidance, and interacts with Gem, a member of the RGK subfamily of the Ras small GTPase superfamily, through the N-terminal half of the protein. GMIP contains a C-terminal RhoGAP domain. GMIP inhibits RhoA function, but is inactive towards Rac1 and Cdc41. 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 568914437 277 VPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKL-RFIVNQEEKLNLDDSQWEDIhvvTGALKMFFRELSEPLFPYSFF 355
Cdd:cd04408   16 VPFVVVRCTAEIENRALGVQGIYRISGSKARVEKLcQAFENGRDLVDLSGHSPHDI---TSVLKHFLKELPEPVLPFQLY 92

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 356 ERFVEAIK--KQDSNEKIET----------MRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLGIVFGPTLLR 423
Cdd:cd04408   93 DDFIALAKelQRDSEKAAESpsiveniirsLKELLGRLPVSNYNTLRHLMAHLYRVAERFEDNKMSPNNLGIVFGPTLLR 172

                        170       180
                 ....*....|....*....|....*.
gi 568914437 424 ---AENESGNVAVHMVYQNQIAEFML 446
Cdd:cd04408  173 plvGGDVSMICLLDTGYQAQLVEFLI 198

RhoGAP_ARAP: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain present in ARAPs. ARAPs (also known as centaurin deltas) contain, besides the RhoGAP domain, an Arf GAP, ankyrin repeat ras-associating, and PH domains. Since their ArfGAP activity is PIP3-dependent, ARAPs are considered integration points for phosphoinositide, Arf and Rho signaling. 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 568914437 277 VPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKLRfivnqeEKLNLD--DSQW----EDIHVVTGALKMFFRELSEPLF 350
Cdd:cd04385   15 IPVIVDKCIDFITQHGLMSEGIYRKNGKNSSVKKLL------EAFRKDarSVQLregeYTVHDVADVLKRFLRDLPDPLL 88

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 351 PYSFFERFVEAIKKQDSNEKIETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLGIVFGPTLLRAENESGN 430
Cdd:cd04385   89 TSELHAEWIEAAELENKDERIARYKELIRRLPPINRATLKVLIGHLYRVQKHSDENQMSVHNLALVFGPTLFQTDEHSVG 168

                 ....
gi 568914437 431 VAVH 434
Cdd:cd04385  169 QTSH 172

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 568914437 260 QIFGSHLHTVCEREHSTVPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKLRFIVNQEEKLNLDDSQWEDIHVVTGALK 339
Cdd:cd04383    1 KLFNGSLEEYIQDSGQAIPLVVESCIRFINLYGLQHQGIFRVSGSQVEVNDIKNAFERGEDPLADDQNDHDINSVAGVLK 80

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 340 MFFRELSEPLFPYSFFERFVEAIKKQDSNEKIETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLGIVFGP 419
Cdd:cd04383   81 LYFRGLENPLFPKERFEDLMSCVKLENPTERVHQIREILSTLPRSVIIVMRYLFAFLNHLSQFSDENMMDPYNLAICFGP 160

                        170       180
                 ....*....|....*....|....*...
gi 568914437 420 TLLRAENESGNVAvhmvYQNQIAEFMLT 447
Cdd:cd04383  161 TLMPVPEGQDQVS----CQAHVNELIKT 184

RhoGAP_myosin_IXB: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain present in myosins IXB. Class IX myosins contain a characteristic head domain, a neck domain and a tail domain which contains a C6H2-zinc binding motif and a Rho-GAP domain. Class IX myosins are single-headed, processive myosins that are partly cytoplasmic, and partly associated with membranes and the actin cytoskeleton. Class IX myosins are implicated in the regulation of neuronal morphogenesis and function of sensory systems, like the inner ear. There are two major isoforms, myosin IXA and IXB with several splice variants, which are both expressed in developing neurons 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 568914437 273 EHSTVPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKLRFIVNQE-EKLNLDDSQwedIHVVTGALKMFFRELSEPLFP 351
Cdd:cd04407   11 NKTSVPIVLEKLLEHVEMHGLYTEGIYRKSGSANRMKELHQLLQADpENVKLENYP---IHAITGLLKQWLRELPEPLMT 87

                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 568914437 352 YSFFERFVEAIKKQDSNEKIETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLGIVFGPTLLRAENES 428
Cdd:cd04407   88 FAQYNDFLRAVELPEKQEQLQAIYRVLEQLPTANHNTLERLIFHLVKVALEEDVNRMSPNALAIVFAPCLLRCPDSS 164

RhoGAP_PARG1: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of PARG1 (PTPL1-associated RhoGAP1). PARG1 was originally cloned as an interaction partner of PTPL1, an intracellular protein-tyrosine phosphatase. PARG1 interacts with Rap2, also a member of the Ras small GTPase superfamily whose exact function is unknown, and shows strong preference for Rho. 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 568914437 262 FGSHLHTVCEREHSTVPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKL-RFIVNQEEKLNLDDSQWEDIHVVtgaLKM 340
Cdd:cd04409    1 FGADFAQVAKKSPDGIPFIIKKCTSEIESRALCLKGIYRVNGAKSRVEKLcQAFENGKDLVELSELSPHDISNV---LKL 77

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 341 FFRELSEPLFPYSFFERFVEAIK-----------KQDSNEKIETM-----------RSLVKRLPPPNHDTMKILFRHLTK 398
Cdd:cd04409   78 YLRQLPEPLILFRLYNEFIGLAKesqhvnetqeaKKNSDKKWPNMctelnrillksKDLLRQLPAPNYNTLQFLIVHLHR 157

                        170       180       190       200       210
                 ....*....|....*....|....*....|....*....|....*....|...
gi 568914437 399 IVAKASQNLMSTQSLGIVFGPTLLRAENESGNVA----VHMVYQNQIAEFMLT 447
Cdd:cd04409  158 VSEQAEENKMSASNLGIIFGPTLIRPRPTDATVSlsslVDYPHQARLVELLIT 210

RhoGAP_ARHGAP22_24_25: GTPase-activator protein (GAP) domain for Rho-like GTPases found in ARHGAP22, 24 and 25-like proteins; longer isoforms of these proteins contain an additional N-terminal pleckstrin homology (PH) domain. ARHGAP25 (KIA0053) has been identified as a GAP for Rac1 and Cdc42. Short isoforms (without the PH domain) of ARHGAP24, called RC-GAP72 and p73RhoGAP, and of ARHGAP22, called p68RacGAP, has been shown to be involved in angiogenesis and endothelial cell capillary formation. 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 568914437 261 IFGSHLHTVCEREHS----TVPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKLRFIVNQEEKLNLDDSQweDIHVVTG 336
Cdd:cd04390    2 VFGQRLEDTVAYERKfgprLVPILVEQCVDFIREHGLKEEGLFRLPGQANLVKQLQDAFDAGERPSFDSDT--DVHTVAS 79

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 337 ALKMFFRELSEPLFPYSFFERFVEAIKKQDSNEK--IETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLG 414
Cdd:cd04390   80 LLKLYLRELPEPVIPWAQYEDFLSCAQLLSKDEEkgLGELMKQVSILPKVNYNLLSYICRFLDEVQSNSSVNKMSVQNLA 159

                        170
                 ....*....|...
gi 568914437 415 IVFGPTLLRAENE 427
Cdd:cd04390  160 TVFGPNILRPKVE 172

RhoGAP_ARHGAP18: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of ArhGAP18-like proteins. The function of ArhGAP18 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 568914437 261 IFGSHLHTVCEREH-----STVPWFVKQCIEAVEKRGLDVDGIYRVSGnlaTIQKLRFIVNQ-EEKLNLDDSQWEDIHV- 333
Cdd:cd04391    1 LFGVPLSTLLERDQkkvpgSKVPLIFQKLINKLEERGLETEGILRIPG---SAQRVKFLCQElEAKFYEGTFLWDQVKQh 77

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 334 -VTGALKMFFRELSEPLFPYSFFERFVEAIKKQDSNEKIETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQS 412
Cdd:cd04391   78 dAASLLKLFIRELPQPLLTVEYLPAFYSVQGLPSKKDQLQALNLLVLLLPEANRDTLKALLEFLQKVVDHEEKNKMNLWN 157

                 ....*....
gi 568914437 413 LGIVFGPTL 421
Cdd:cd04391  158 VAMIMAPNL 166

RhoGAP_ARHGAP20: RhoGAP (GTPase-activator protein [GAP] for Rho-like small GTPases) domain of ArhGAP20-like proteins. ArhGAP20, also known as KIAA1391 and RA-RhoGAP, contains a RhoGAP, a RA, and a PH domain, and ANXL repeats. ArhGAP20 is activated by Rap1 and induces inactivation of Rho, which in turn leads to neurite outgrowth. 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 568914437 261 IFGSHLHTVCEreHSTVPWFVKQCIEAVEKRGLDVDGIYRVSGNLATIQKLRFIVNQEEKLNLDDsqwEDIHVVTGALKM 340
Cdd:cd04402    1 LFGQPLSNICE--DDNLPKPILDMLSLLYQKGPSTEGIFRRSANAKACKELKEKLNSGVEVDLKA---EPVLLLASVLKD 75

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568914437 341 FFRELSEPLFPYSFFERFVEAIKKQDSNEKIETMRSLVKRLPPPNHDTMKILFRHLTKIVAKASQNLMSTQSLGIVFGPT 420
Cdd:cd04402   76 FLRNIPGSLLSSDLYEEWMSALDQENEEEKIAELQRLLDKLPRPNVLLLKHLICVLHNISQNSETNKMDAFNLAVCIAPS 155

                 ....*...
gi 568914437 421 LLRAENES 428
Cdd:cd04402  156 LLWPPASS 163