>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=99.63 E-value=6.4e-15 Score=116.40 Aligned_cols=151 Identities=21% Similarity=0.200 Sum_probs=94.0 Q ss_pred EEEEECCCCCCHHHHHHHHHCCCEEEECCCCCCEEEEEEEEEEECC--EEEEEEECCCCHHHCCCCCCCCCCHHHHHHHH Q ss_conf 8998338998688999998689202105888860212789997399--48999987984010123575321002345555 Q gi|254780941|r 24 CVALVGATNAGKSTLVNRFVGAKVSIVTHKVQTTRSIVRGIVSEKE--SQIVFLDTPGIFNAKDSYHKLMIRLSWSTIKH 101 (311) Q Consensus 24 ~VaivG~pN~GKSTL~N~l~g~~vsivS~k~~TTr~~i~gi~~~~~--~qiifvDTPG~~~~~~~l~~~~~~~~~~~l~~ 101 (311) T Consensus 2 Ki~llGd~~VGKTsli~r~~~~~f~--~~y~~Ti~~~~~~~~~~~~~~~~l~iwDt~G~e~--------~~~~~~~~~~~ 71 (171) T cd00157 2 KIVVVGDGAVGKTCLLISYTTGKFP--TEYVPTVFDNYSATVTVDGKQVNLGLWDTAGQEE--------YDRLRPLSYPN 71 (171) T ss_pred EEEEECCCCCCHHHHHHHHHCCCCC--CCCCCEEEEEEEEEEEECCEEEEEEEEECCCCCC--------CCCCHHHHHHH T ss_conf 8999999996699999999629999--8758803466689999999999999998998710--------24132234442 Q ss_pred HHHHCCCCHHHHHHHCCH-HH-HHHHHHH--CCCCCEEEEEECCCHHHHH-----------H-HHHHHHHHHCCCCCCCC Q ss_conf 321001100001000000-01-2234544--2872025787211010434-----------5-78888641001233431 Q gi|254780941|r 102 ADIVCLVVDSHRELKVNI-HD-LLKEIAK--RSSRLILILNKIDCVKPER-----------L-LEQAEIANKLVFIEKTF 165 (311) Q Consensus 102 aDiil~VvDa~~~~~~~~-~~-il~~l~~--~~~p~IiVlNKiDlv~~~~-----------l-~~~~~~~~~~~~~~~i~ 165 (311) T Consensus 72 a~~~ilvydit~~~Sf~~i~~~w~~~i~~~~~~~piilvgNK~DL~~~~~~~~~~~~~~r~V~~~e~~~~a~~~~~~~f~ 151 (171) T cd00157 72 TDVFLICFSVDSPSSFENVKTKWIPEIRHYCPNVPIILVGTKIDLRDDENTLKKLEKGKEPITPEEGEKLAKEIGAIGYM 151 (171) T ss_pred CCEEEEEEECCCHHHHHHHHHHHHHHHHHHCCCCCEEEEEECCCCCCCCCHHHHHHCCCCCCCHHHHHHHHHHCCCCEEE T ss_conf 65899999689778899999999999998599986899998710012300022331147515899999999984998899 Q ss_pred CCCCCCCCCHHHHHHHHHH Q ss_conf 1000138742678999998 Q gi|254780941|r 166 MVSATKGHGCDDVLNYLCS 184 (311) Q Consensus 166 ~ISAk~g~Gid~L~~~L~~ 184 (311) 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: 254780941 and conserved domain: cd00157