>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=99.29 E-value=1.3e-11 Score=97.33 Aligned_cols=147 Identities=20% Similarity=0.336 Sum_probs=94.2 Q ss_pred EEEEECCCCCHHHHHHHHHHHHHHHCCCCCCEECCCEE---EEECCC--CEEEEEECCCHHHHHHHHHHHHHCCCCEEEE Q ss_conf 89862368504467778864222100123100012149---995178--4388885166157899986664206805999 Q gi|254780787|r 386 VTIMGHVDHGKTSLLDAIRKADVAKGEIGGITQHIGAY---QVAYQG--KNITFLDTPGHAAFYEMRARGARVTDIAVLV 460 (884) Q Consensus 386 v~v~ghvd~GKt~lld~~r~~~~~~~e~ggitq~iga~---~~~~~~--~~~~~iDtPGh~~f~~~r~rg~~~~d~~ilv 460 (884) T Consensus 3 i~llGd~~VGKTsli~r~~~~~f~~~y~----~Ti~~~~~~~~~~~~~~~~l~iwDt~G~e~~~~~~~~~~~~a~~~ilv 78 (171) T cd00157 3 IVVVGDGAVGKTCLLISYTTGKFPTEYV----PTVFDNYSATVTVDGKQVNLGLWDTAGQEEYDRLRPLSYPNTDVFLIC 78 (171) T ss_pred EEEECCCCCCHHHHHHHHHCCCCCCCCC----CEEEEEEEEEEEECCEEEEEEEEECCCCCCCCCCHHHHHHHCCEEEEE T ss_conf 9999999966999999996299998758----803466689999999999999998998710241322344426589999 Q ss_pred EECCCCCCHHHHHHHH-----HHH--HCCCCEEEECCCCCCCCCCCCHHHH-----HH-H-CCCCCCCCCCCCCEEEEEE Q ss_conf 9836674023577789-----899--7099415612331244332000221-----00-0-0132000123474036311 Q gi|254780787|r 461 LAADEEIMPQAIESIN-----HAK--AADVSIIVAINKIDKLGADPQKVRM-----SL-L-KHDVFVESMGGDILDVEIS 526 (884) Q Consensus 461 v~~~~g~~~qt~e~~~-----~~~--~~~~p~iva~nk~d~~~~~~~~~~~-----~~-~-~~~~~~~~~~~~~~~~~~~ 526 (884) T Consensus 79 ydit~---~~Sf~~i~~~w~~~i~~~~~~~piilvgNK~DL~~~~~~~~~~~~~~r~V~~~e~~~~a~~~-~~~~f~E~S 154 (171) T cd00157 79 FSVDS---PSSFENVKTKWIPEIRHYCPNVPIILVGTKIDLRDDENTLKKLEKGKEPITPEEGEKLAKEI-GAIGYMECS 154 (171) T ss_pred EECCC---HHHHHHHHHHHHHHHHHHCCCCCEEEEEECCCCCCCCCHHHHHHCCCCCCCHHHHHHHHHHC-CCCEEEEEC T ss_conf 96897---78899999999999998599986899998710012300022331147515899999999984-998899978 Q ss_pred ECCCCCCCCCCCCH Q ss_conf 00247741122100 Q gi|254780787|r 527 AKNNLNLDKLLDAI 540 (884) Q Consensus 527 ~~~~~~~~~~~~~~ 540 (884) T Consensus 155 Ak~g~nV~e~F~~l 168 (171) T cd00157 155 ALTQEGVKEVFEEA 168 (171) T ss_pred CCCCCCHHHHHHHH T ss_conf 78995989999999

HHsearch alignment for GI: 254780787 and conserved domain: cd00157