>cd01861 Rab6 Rab6 subfamily. Rab6 is involved in microtubule-dependent transport pathways through the Golgi and from endosomes to the Golgi. Rab6A of mammals is implicated in retrograde transport through the Golgi stack, and is also required for a slow, COPI-independent, retrograde transport pathway from the Golgi to the endoplasmic reticulum (ER). This pathway may allow Golgi residents to be recycled through the ER for scrutiny by ER quality-control systems. Yeast Ypt6p, the homolog of the mammalian Rab6 GTPase, is not essential for cell viability. Ypt6p acts in endosome-to-Golgi, in intra-Golgi retrograde transport, and possibly also in Golgi-to-ER trafficking. 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 dissociation inhibitors (GDIs), which facilitate

Probab=90.14  E-value=0.16  Score=28.91  Aligned_cols=23  Identities=30%  Similarity=0.563  Sum_probs=20.0

Q ss_pred             CCEECCCCCCCCHHHHHHHHHHH
Q ss_conf             41003675666624899999998
Q gi|254780615|r  150 GKIGLFGGAGVGKTVLIMELINN  172 (478)
Q Consensus       150 qr~gIfgg~GvGKT~l~~~~i~n  172 (478)
T Consensus         1 ~Ki~vvG~~~vGKTsli~r~~~~   23 (161)
T cd01861           1 HKLVFLGDQSVGKTSIITRFMYD   23 (161)
T ss_pred             CEEEEECCCCCCHHHHHHHHHHC
T ss_conf             97999997997899999999319