>cd01866 Rab2 Rab2 subfamily. Rab2 is localized on cis-Golgi membranes and interacts with Golgi matrix proteins. Rab2 is also implicated in the maturation of vesicular tubular clusters (VTCs), which are microtubule-associated intermediates in transport between the ER and Golgi apparatus. In plants, Rab2 regulates vesicle trafficking between the ER and the Golgi bodies and is important to pollen tube growth. 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 Rab recycling by masking C-terminal lipid binding and promoting cytosolic localization. Most Rab GTPases contain a lipid modification site at the C-terminus, with sequence motifs CC, CXC, or CCX. Lipid binding is essential for membrane attachment, a key featur

Probab=99.63 E-value=4.2e-15 Score=117.61 Aligned_cols=153 Identities=19% Similarity=0.184 Sum_probs=99.4 Q ss_pred EEEEECCCCCCHHHHHHHHHCCCEEEECCCCCCEEE--EEEEEEEEC--CEEEEEEECCCCHHHCCCCCCCCCCHHHHHH Q ss_conf 899833899868899999868920210588886021--278999739--9489999879840101235753210023455 Q gi|254780941|r 24 CVALVGATNAGKSTLVNRFVGAKVSIVTHKVQTTRS--IVRGIVSEK--ESQIVFLDTPGIFNAKDSYHKLMIRLSWSTI 99 (311) Q Consensus 24 ~VaivG~pN~GKSTL~N~l~g~~vsivS~k~~TTr~--~i~gi~~~~--~~qiifvDTPG~~~~~~~l~~~~~~~~~~~l 99 (311) T Consensus 6 KivlvGd~~VGKTsli~r~~~~~f~~---~~~~Tig~~~~~k~i~~~~~~~~l~iwDt~G~e--------~~~~l~~~~~ 74 (168) T cd01866 6 KYIIIGDTGVGKSCLLLQFTDKRFQP---VHDLTIGVEFGARMITIDGKQIKLQIWDTAGQE--------SFRSITRSYY 74 (168) T ss_pred EEEEECCCCCCHHHHHHHHHCCCCCC---CCCCCCEEEEEEEEEEECCEEEEEEEEECCCCC--------CCCCCHHHHH T ss_conf 99999989978899999991098999---878985078899999999999999999799973--------3462558886 Q ss_pred HHHHHHCCCCHHHHHHHCC-HHHHHHHHHH---CCCCCEEEEEECCCHHHHHH-HHHHHHHHHCCCCCCCCCCCCCCCCC Q ss_conf 5532100110000100000-0012234544---28720257872110104345-78888641001233431100013874 Q gi|254780941|r 100 KHADIVCLVVDSHRELKVN-IHDLLKEIAK---RSSRLILILNKIDCVKPERL-LEQAEIANKLVFIEKTFMVSATKGHG 174 (311) Q Consensus 100 ~~aDiil~VvDa~~~~~~~-~~~il~~l~~---~~~p~IiVlNKiDlv~~~~l-~~~~~~~~~~~~~~~i~~ISAk~g~G 174 (311) T Consensus 75 ~~a~~~ilvydit~~~Sf~~l~~w~~~i~~~~~~~~~iiLVGNK~DL~~~r~V~~~e~~~~a~~~~~-~~~E~SAk~~~n 153 (168) T cd01866 75 RGAAGALLVYDITRRETFNHLTSWLEDARQHSNSNMTIMLIGNKCDLESRREVSYEEGEAFAKEHGL-IFMETSAKTASN 153 (168) T ss_pred HHHCEEEEECCCCCHHHHHHHHHHHHHHHHHCCCCCEEEEEEECCCHHHCCCCCHHHHHHHHHHCCC-EEEEECCCCCCC T ss_conf 6436899934458779999999999999986799965998434235454077899999999998699-999976788808 Q ss_pred HHHHHHHHHHHCCC Q ss_conf 26789999983662 Q gi|254780941|r 175 CDDVLNYLCSTLPL 188 (311) Q Consensus 175 id~L~~~L~~~lpe 188 (311) T Consensus 154 V~~~F~~l~~~i~~ 167 (168) T cd01866 154 VEEAFINTAKEIYE 167 (168) T ss_pred HHHHHHHHHHHHHH T ss_conf 89999999999973

HHsearch alignment for GI: 254780941 and conserved domain: cd01866