>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=93.97  E-value=0.058  Score=33.03  Aligned_cols=23  Identities=26%  Similarity=0.573  Sum_probs=20.4

Q ss_pred             CEEEEECCCCCCHHHHHHHHHHH
Q ss_conf             96999878899967899999997
Q gi|254780240|r    1 MRIIFLGPPGSGKGTQACRLSQK   23 (201)
Q Consensus         1 m~I~i~G~PGsGK~T~a~~la~~   23 (201)
T Consensus         1 ~Ki~vvG~~~vGKTsli~~~~~~   23 (159)
T cd00154           1 FKIVLIGDSGVGKTSLLLRFVDG   23 (159)
T ss_pred             CEEEEECCCCCCHHHHHHHHHHC
T ss_conf             98999996996899999999709