>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=98.59 E-value=1.5e-06 Score=63.99 Aligned_cols=148 Identities=22% Similarity=0.255 Sum_probs=83.6 Q ss_pred CEEEEEECCCCCHHHHHHHHHCCCCCCCCCCCCCCCCCCEEEEECCCHHHHHHHHHCCCCEEEEEEEEEEECCCCCCCCC Q ss_conf 24867528887888999987404898736668674488337997685558777642186502335799985122354322 Q gi|254780226|r 3 FKCGIIGLPNVGKSTLFNALTRTASAQAANYPFCTIEPNSGEVAVPDPRMHKLAEIAESKDLVPTRMSFVDIAGLVRGAS 82 (367) Q Consensus 3 ~kiGlvG~pn~GKST~f~alT~~~~~~~~~ypFtTi~pn~g~~~v~d~~~~~l~~~~~~~~~~p~~i~~iDvaGLv~gA~ 82 (367) T Consensus 1 ~Ki~vvG~~~vGKTsli~~~~~~-~f-~~~~~-~Tig~d~~~~~~~----------~~~---~~~~l~iwDt~G~e~--- 61 (159) T cd00154 1 FKIVLIGDSGVGKTSLLLRFVDG-KF-DENYK-STIGVDFKSKTIE----------IDG---KTVKLQIWDTAGQER--- 61 (159) T ss_pred CEEEEECCCCCCHHHHHHHHHHC-CC-CCCCC-CCCCEEEEEEEEE----------ECC---EEEEEEEEECCCCHH--- T ss_conf 98999996996899999999709-99-99848-8666479999999----------999---999999997898265--- Q ss_pred CCCCCHHHHHHHHHCCCEEEEEECCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCHHHHHHH Q ss_conf 24663289999873037478850123454211345776732157889888876433222457777787520320467778 Q gi|254780226|r 83 KGEGLGNQFLAHIREVDAIIHVLRCFKDENIIHVEGRIDPINDIETIETELMLSDLERLERLFEKNKKYRNHKSEEIVLL 162 (367) Q Consensus 83 ~G~GlGN~FL~~ir~aDalihVVdaf~~~~v~~~~g~~DP~~Di~~i~~EL~l~dle~lek~~~k~~k~~~~~~~~~~~~ 162 (367) T Consensus 62 -~~~l~~~---~~~~~d~~ilv~d~~~~~S-------------f~~----~~---------~~~---------------- 95 (159) T cd00154 62 -FRSITPS---YYRGAHGAILVYDITNRES-------------FEN----LD---------KWL---------------- 95 (159) T ss_pred -HHHHHHH---HHHHCCEEEEECCCCCHHH-------------HHH----HH---------HHH---------------- T ss_conf -7788999---9754127567244898899-------------999----99---------999---------------- Q ss_pred HHHHHHHHHHHHCCCCCHHHHHHCCHHHHHHHHHHHHHHHCCCHHEECCCHHHHCCCHHHHHHHHHHHHHCCCCCCCCCC Q ss_conf 99999889988758741034431326777621023576410100100343011101013467877886436984033210 Q gi|254780226|r 163 QSIISSSLRLIEEGKPVRSLLESLDSDAIPIFKSLNLLTAKPILYICNVSEHDCKKGNIYTEAVQRLASQQNAEMIIISA 242 (367) Q Consensus 163 ~~~l~~~~~~Le~~~~~r~~~~~~~~de~~~l~~~~llt~KP~iivaNk~e~~~~~~n~~~e~i~~l~~~~~~~~i~isa 242 (367) T Consensus 96 ----~~----i~~------~---~-------------~~~~~iilvgnK~DL~~~-~~v~~~~~~~~a~~~~~~~~e~SA 144 (159) T cd00154 96 ----KE----LKE------Y---A-------------PENIPIILVGNKIDLEDQ-RQVSTEEAQQFAKENGLLFFETSA 144 (159) T ss_pred ----HH----HHH------H---C-------------CCCCCEEEEEECCCCHHC-CCCCHHHHHHHHHHCCCEEEEECC T ss_conf ----99----998------6---8-------------988826999974563011-689999999999986997999876 Q ss_pred HHHH Q ss_conf 0246 Q gi|254780226|r 243 AIEA 246 (367) Q Consensus 243 ~~E~ 246 (367) T Consensus 145 k~~~ 148 (159) T cd00154 145 KTGE 148 (159) T ss_pred CCCC T ss_conf 8881

HHsearch alignment for GI: 254780226 and conserved domain: cd00154