>cd00157 Rho Rho (Ras homology) family. Members of the Rho family include RhoA, Cdc42, Rac, Rnd, Wrch1, RhoBTB, and Rop. There are 22 human Rho family members identified currently. These proteins are all involved in the reorganization of the actin cytoskeleton in response to external stimuli. They also have roles in cell transformation by Ras in cytokinesis, in focal adhesion formation and in the stimulation of stress-activated kinase. These various functions are controlled through distinct effector proteins and mediated through a GTP-binding/GTPase cycle involving three classes of regulating proteins: GAPs (GTPase-activating proteins), GEFs (guanine nucleotide exchange factors), and GDIs (guanine nucleotide dissociation inhibitors). Most Rho proteins contain a lipid modification site at the C-terminus, with a typical sequence motif CaaX, where a = an aliphatic amino acid and X = any amino acid. Lipid binding is essential for membrane attachment, a key feature of most Rho protein

Probab=99.55 E-value=1.3e-14 Score=108.37 Aligned_cols=152 Identities=22% Similarity=0.188 Sum_probs=99.8 Q ss_pred EEEEECCCCCCCEEEEEECCCCCHHHHHHHCCCEECCEEEEECCE--EEEEECCCCCCCCCCCCCCCHHHHHHHHHHHHH Q ss_conf 124421677753035410145401212110000001026632986--899822642124731167751234433333578 Q gi|254780648|r 162 IGIIGLPNAGKSTFLASVTRAKPKIADYPFTTLYPNLGIVKEGYK--EFILADIPGIIKNAHQGAGIGDRFLKHTERTHV 239 (335) Q Consensus 162 VglVG~PNaGKSTLln~ls~ak~kIa~ypFTT~~P~lGvv~~~~~--~~~i~D~PGlIegA~~~~glG~~FLrhIer~~v 239 (335) T Consensus 3 i~llGd~~VGKTsli~r~~~~~f-~~~y~~Ti~~~~~~~~~~~~~~~~l~iwDt~G~e~~----~~~~~~---~~~~a~~ 74 (171) T cd00157 3 IVVVGDGAVGKTCLLISYTTGKF-PTEYVPTVFDNYSATVTVDGKQVNLGLWDTAGQEEY----DRLRPL---SYPNTDV 74 (171) T ss_pred EEEECCCCCCHHHHHHHHHCCCC-CCCCCCEEEEEEEEEEEECCEEEEEEEEECCCCCCC----CCCHHH---HHHHCCE T ss_conf 99999999669999999962999-987588034666899999999999999989987102----413223---4442658 Q ss_pred HHHHCCCCCCCHHHHHH-HHHHHHHHHHHHHCCCCEEEEEECCCCCCHHH------------HHHHHHHHHHHCCC-CEE Q ss_conf 87520222211013466-67899877766750598899997465899889------------99999999986299-489 Q gi|254780648|r 240 LLHIVSALEENVQAAYQ-CILDELSAYNSELRKKIEIVGLSQIDTVDSDT------------LARKKNELATQCGQ-VPF 305 (335) Q Consensus 240 Ll~VVD~s~~d~~~~~~-~I~~EL~~y~~~L~~Kp~IIVlNKiDl~~~e~------------~~~~~~~l~~~~~~-~vi 305 (335) T Consensus 75 ~ilvydit~~~Sf~~i~~~w~~~i~~~~~---~~piilvgNK~DL~~~~~~~~~~~~~~r~V~~~e~~~~a~~~~~~~f~ 151 (171) T cd00157 75 FLICFSVDSPSSFENVKTKWIPEIRHYCP---NVPIILVGTKIDLRDDENTLKKLEKGKEPITPEEGEKLAKEIGAIGYM 151 (171) T ss_pred EEEEEECCCHHHHHHHHHHHHHHHHHHCC---CCCEEEEEECCCCCCCCCHHHHHHCCCCCCCHHHHHHHHHHCCCCEEE T ss_conf 99999689778899999999999998599---986899998710012300022331147515899999999984998899 Q ss_pred EEECCCCCCHHHHHHHHHH Q ss_conf 9988878899999999999 Q gi|254780648|r 306 EFSSITGHGIPQILECLHD 324 (335) Q Consensus 306 ~ISA~tg~GI~eL~~~I~e 324 (335) T Consensus 152 E~SAk~g~nV~e~F~~l~r 170 (171) T cd00157 152 ECSALTQEGVKEVFEEAIR 170 (171) T ss_pred EECCCCCCCHHHHHHHHHC T ss_conf 9787899598999999966

HHsearch alignment for GI: 254780648 and conserved domain: cd00157