>cd00154 Rab Rab family. Rab GTPases form the largest family within the Ras superfamily. There are at least 60 Rab genes in the human genome, and a number of Rab GTPases are conserved from yeast to humans. Rab GTPases are small, monomeric proteins that function as molecular switches to regulate vesicle trafficking pathways. The different Rab GTPases are localized to the cytosolic face of specific intracellular membranes, where they regulate distinct steps in membrane traffic pathways. In the GTP-bound form, Rab GTPases recruit specific sets of effector proteins onto membranes. Through their effectors, Rab GTPases regulate vesicle formation, actin- and tubulin-dependent vesicle movement, and membrane fusion. GTPase activating proteins (GAPs) interact with GTP-bound Rab and accelerate the hydrolysis of GTP to GDP. Guanine nucleotide exchange factors (GEFs) interact with GDP-bound Rabs to promote the formation of the GTP-bound state. Rabs are further regulated by guanine nucleotide di

Probab=99.65 E-value=3.6e-15 Score=121.16 Aligned_cols=148 Identities=25% Similarity=0.302 Sum_probs=96.5 Q ss_pred EEEEEECCCCCCHHHHHHHHHCCCEEEECCCCCCEEEEEEEEEEECCEEE--EEEECCCCCCCCHHHHHHHHHHHHHHHH Q ss_conf 08999718988788899998588501025898530223899999899899--9996588420763689999999999999 Q gi|255764471|r 3 YTIAIVGAPNVGKSTLFNRLVKKKMAVVGNHPGITRDRLYGQAIINGVIF--NIVDTAGIADGKNCSIAKQMNDQTELAI 80 (470) Q Consensus 3 ~~iaivG~pNvGKStL~N~l~~~~~aiv~~~~g~Trd~~~~~~~~~~~~~--~liDT~G~~~~~~~~~~~~i~~~~~~ai 80 (470) T Consensus 1 ~Ki~vvG~~~vGKTsli~~~~~~~f~-~~~~~Tig~d~~~~~~~~~~~~~~l~iwDt~G~e~-----~-~~l---~~~~~ 70 (159) T cd00154 1 FKIVLIGDSGVGKTSLLLRFVDGKFD-ENYKSTIGVDFKSKTIEIDGKTVKLQIWDTAGQER-----F-RSI---TPSYY 70 (159) T ss_pred CEEEEECCCCCCHHHHHHHHHHCCCC-CCCCCCCCEEEEEEEEEECCEEEEEEEEECCCCHH-----H-HHH---HHHHH T ss_conf 98999996996899999999709999-98488666479999999999999999997898265-----7-788---99997 Q ss_pred HHCCEEEEEECCCCCCCHHHH-HHHHHHHC---CCCCCCCCHHHHCCCHHHH----HHHHHH-HHCCCCCEEEHHHCCCC Q ss_conf 877989999759887762344-55533210---2332222056522301210----012455-31222201001110222 Q gi|255764471|r 81 NEAHLILFLIDSKAGITPYDH-AITSFLRK---KNIPIIIVSNKMDTRIAQR----NFYEIY-SLDFKEIVEISAEHDLG 151 (470) Q Consensus 81 ~~aD~il~vvD~~~g~~~~D~-~i~~~lr~---~~~~~ilv~NK~D~~~~~~----~~~e~~-~lg~~~~i~iSA~~g~G 151 (470) T Consensus 71 ~~~d~~ilv~d~~~~~Sf~~~~~~~~~i~~~~~~~~~iilvgnK~DL~~~~~v~~~~~~~~a~~~~~-~~~e~SAk~~~~ 149 (159) T cd00154 71 RGAHGAILVYDITNRESFENLDKWLKELKEYAPENIPIILVGNKIDLEDQRQVSTEEAQQFAKENGL-LFFETSAKTGEN 149 (159) T ss_pred HHCCEEEEECCCCCHHHHHHHHHHHHHHHHHCCCCCCEEEEEECCCCHHCCCCCHHHHHHHHHHCCC-EEEEECCCCCCC T ss_conf 5412756724489889999999999999986898882699997456301168999999999998699-799987688819 Q ss_pred CHHHHHHHHH Q ss_conf 0147999999 Q gi|255764471|r 152 TSELHSVIFK 161 (470) Q Consensus 152 i~~L~~~i~~ 161 (470) T Consensus 150 i~~~F~~i~~ 159 (159) T cd00154 150 VEELFQSLAE 159 (159) T ss_pred HHHHHHHHHC T ss_conf 8999999869

HHsearch alignment for GI: 255764471 and conserved domain: cd00154