>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=99.38 E-value=1.1e-12 Score=107.78 Aligned_cols=131 Identities=27% Similarity=0.380 Sum_probs=90.5 Q ss_pred CCEEEECCCCCCHHHHHHHHHCCHHCCCCCCCCCCEEECCCCCCCCCEE--EEEEECCHHCCCCHHHHHHHHHHHHHHHH Q ss_conf 3024311466318889999855200023454687211000124568358--99950810002410356666788899850 Q gi|254780809|r 220 YKIVILGHSNAGKSSLFNALAKKDVAIVTDIPGTTRDVLTIDLDLEGYL--VKISDTAGIRETDDIVEKEGIKRTFLEVE 297 (440) Q Consensus 220 ~~v~i~G~pN~GKSSL~N~L~~~~~aIVs~~~GTTRD~i~~~~~i~g~~--~~l~DTaGir~t~d~IE~~GI~ra~~~i~ 297 (440) T Consensus 1 iKi~llGd~~VGKTsli~r~~~~~f--~~~y~~Ti~~~~~~~~~~~~~~~~l~iwDt~G~e~~~~------~--~~~~~~ 70 (171) T cd00157 1 IKIVVVGDGAVGKTCLLISYTTGKF--PTEYVPTVFDNYSATVTVDGKQVNLGLWDTAGQEEYDR------L--RPLSYP 70 (171) T ss_pred CEEEEECCCCCCHHHHHHHHHCCCC--CCCCCCEEEEEEEEEEEECCEEEEEEEEECCCCCCCCC------C--HHHHHH T ss_conf 9899999999669999999962999--98758803466689999999999999998998710241------3--223444 Q ss_pred HHCCEEECCCCCCHHHHH------------HHCCCCCCCCCCCCCCCCCCC---------------------HHH----H Q ss_conf 301102013589856634------------312898532222333446542---------------------000----0 Q gi|254780809|r 298 NADLILLLKEINSKKEIS------------FPKNIDFIFIGTKSDLYSTYT---------------------EEY----D 340 (440) Q Consensus 298 ~aDlil~v~D~~~~~~~~------------~~~~~~~i~V~NK~Dl~~~~~---------------------~~~----~ 340 (440) T Consensus 71 ~a~~~ilvydit~~~Sf~~i~~~w~~~i~~~~~~~piilvgNK~DL~~~~~~~~~~~~~~r~V~~~e~~~~a~~~~~~~f 150 (171) T cd00157 71 NTDVFLICFSVDSPSSFENVKTKWIPEIRHYCPNVPIILVGTKIDLRDDENTLKKLEKGKEPITPEEGEKLAKEIGAIGY 150 (171) T ss_pred HCCEEEEEEECCCHHHHHHHHHHHHHHHHHHCCCCCEEEEEECCCCCCCCCHHHHHHCCCCCCCHHHHHHHHHHCCCCEE T ss_conf 26589999968977889999999999999859998689999871001230002233114751589999999998499889 Q ss_pred HHHHHHHHHHHHHHHHHHHH Q ss_conf 01333323235899999999 Q gi|254780809|r 341 HLISSFTGEGLEELINKIKS 360 (440) Q Consensus 341 ~~ISaktg~Gi~~L~~~I~~ 360 (440) T Consensus 151 ~E~SAk~g~nV~e~F~~l~r 170 (171) T cd00157 151 MECSALTQEGVKEVFEEAIR 170 (171) T ss_pred EEECCCCCCCHHHHHHHHHC T ss_conf 99787899598999999966

HHsearch alignment for GI: 254780809 and conserved domain: cd00157