>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=99.59 E-value=4.7e-15 Score=120.40 Aligned_cols=153 Identities=20% Similarity=0.256 Sum_probs=87.4 Q ss_pred EEEEEEECCCCCHHHHHHHHHCCCCCCCHHHHHHHHHCCCCEEEECCEE--EEEEECHHCCCCCCCCCHHHHHHCCCCCE Q ss_conf 0388640356425678876520121100024566542023114203406--99981711044444300011100012100 Q gi|255764471|r 204 LRIAVVGRPNVGKSTLINRLLGYNRLLTGSQSGITRDSVSISWNWKNHP--IEIFDTAGMRKPSRITESLEQKTVKKSMQ 281 (470) Q Consensus 204 i~~~~~G~pN~GKStl~N~l~~~~r~ivs~~~GtTrD~i~~~~~~~~~~--~~liDTaGirkk~~~~~~~E~~s~~~t~~ 281 (470) T Consensus 1 ~Ki~vvG~~~vGKTsli~r~~~~~f~-~~~~~tig~d~~~k~v~~~~~~~~l~i~D~~g~----------e~~~~~~-~~ 68 (161) T cd01861 1 HKLVFLGDQSVGKTSIITRFMYDTFD-NQYQATIGIDFLSKTMYLEDKTVRLQLWDTAGQ----------ERFRSLI-PS 68 (161) T ss_pred CEEEEECCCCCCHHHHHHHHHHCCCC-CCCCCCCCEEEEEEEEEECCEEEEEEEEECCCC----------HHHHHHH-HH T ss_conf 97999997997899999999319999-984897567889999999999999999979985----------3157888-98 Q ss_pred EEECCEEEEEECCCCCCCHHHHH-HHHHHHHC---CCCCCCEEEECCCCCCCHHHHHHHHHHHCCCCCCCCCCCCCCCCC Q ss_conf 12012059984553212202122-32000000---357665589442233541555666542013332004883111234 Q gi|255764471|r 282 SVRTCETTIVLLDATIPFEKQDL-RIVDSVFN---TGHAVVLALNKWDMVSDKLNLLQDLRTKAIKNLPQIGDIYINTIS 357 (470) Q Consensus 282 ~i~~advvi~viDa~~~~~~qd~-~i~~~i~~---~~k~~iiv~NK~Dli~~~~~~~~~~~~~~~~~~~~~~~~~i~~iS 357 (470) T Consensus 69 ~~~~~~~~ilvfd~t~~~Sf~~~~~w~~~i~~~~~~~~~ivlvGnK~Dl~~~r~v~~~e~~~~-----a~~~~~~y~E~S 143 (161) T cd01861 69 YIRDSSVAVVVYDITNRQSFDNTDKWIDDVRDERGNDVIIVLVGNKTDLSDKRQVSTEEGEKK-----AKELNAMFIETS 143 (161) T ss_pred HHHHHCEEEEEEECCCHHHHHHHHHHHHHHHHHCCCCCEEEEEEECCCCHHCCCCCHHHHHHH-----HHHCCCEEEEEC T ss_conf 866525899998479989999999999999986578984999610211022177899999999-----998499899983 Q ss_pred CCCCCCHHHHHHHHHH Q ss_conf 5333485899999999 Q gi|255764471|r 358 GRTGEGLDDLMVSVLE 373 (470) Q Consensus 358 A~~g~gi~~l~~~i~~ 373 (470) T Consensus 144 ak~~~nV~e~F~~la~ 159 (161) T cd01861 144 AKAGHNVKELFRKIAS 159 (161) T ss_pred CCCCCCHHHHHHHHHH T ss_conf 4778088999999997

HHsearch alignment for GI: 255764471 and conserved domain: cd01861