>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=98.09 E-value=0.00012 Score=51.03 Aligned_cols=151 Identities=20% Similarity=0.227 Sum_probs=86.5 Q ss_pred CCEEEEEECCCCCHHHHHHHHHCCCCCCCCCCCCCCCCCCEEEEECCCHHHHHHHHHCCCCEEEEEEEEEEECCCCCCCC Q ss_conf 82486752888788899998740489873666867448833799768555877764218650233579998512235432 Q gi|254780226|r 2 GFKCGIIGLPNVGKSTLFNALTRTASAQAANYPFCTIEPNSGEVAVPDPRMHKLAEIAESKDLVPTRMSFVDIAGLVRGA 81 (367) Q Consensus 2 ~~kiGlvG~pn~GKST~f~alT~~~~~~~~~ypFtTi~pn~g~~~v~d~~~~~l~~~~~~~~~~p~~i~~iDvaGLv~gA 81 (367) T Consensus 4 ~~KivlvGd~~VGKTsli~r~~~~-~f-~~~~~-~Tig~~~~~k~i----------~~~~---~~~~l~iwDt~G~e~~- 66 (168) T cd01866 4 LFKYIIIGDTGVGKSCLLLQFTDK-RF-QPVHD-LTIGVEFGARMI----------TIDG---KQIKLQIWDTAGQESF- 66 (168) T ss_pred EEEEEEECCCCCCHHHHHHHHHCC-CC-CCCCC-CCCEEEEEEEEE----------EECC---EEEEEEEEECCCCCCC- T ss_conf 889999998997889999999109-89-99878-985078899999----------9999---9999999979997334- Q ss_pred CCCCCCHHHHHHHHHCCCEEEEEECCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCHHHHHH Q ss_conf 22466328999987303747885012345421134577673215788988887643322245777778752032046777 Q gi|254780226|r 82 SKGEGLGNQFLAHIREVDAIIHVLRCFKDENIIHVEGRIDPINDIETIETELMLSDLERLERLFEKNKKYRNHKSEEIVL 161 (367) Q Consensus 82 ~~G~GlGN~FL~~ir~aDalihVVdaf~~~~v~~~~g~~DP~~Di~~i~~EL~l~dle~lek~~~k~~k~~~~~~~~~~~ 161 (367) T Consensus 67 ---~~l---~~~~~~~a~~~ilvydit~~~S-------------f------------~~l~-~w---------------- 98 (168) T cd01866 67 ---RSI---TRSYYRGAAGALLVYDITRRET-------------F------------NHLT-SW---------------- 98 (168) T ss_pred ---CCC---HHHHHHHHCEEEEECCCCCHHH-------------H------------HHHH-HH---------------- T ss_conf ---625---5888664368999344587799-------------9------------9999-99---------------- Q ss_pred HHHHHHHHHHHHHCCCCCHHHHHHCCHHHHHHHHHHHHHHHCCCHHEECCCHHHHCCCHHHHHHHHHHHHHCCCCCCCCC Q ss_conf 89999988998875874103443132677762102357641010010034301110101346787788643698403321 Q gi|254780226|r 162 LQSIISSSLRLIEEGKPVRSLLESLDSDAIPIFKSLNLLTAKPILYICNVSEHDCKKGNIYTEAVQRLASQQNAEMIIIS 241 (367) Q Consensus 162 ~~~~l~~~~~~Le~~~~~r~~~~~~~~de~~~l~~~~llt~KP~iivaNk~e~~~~~~n~~~e~i~~l~~~~~~~~i~is 241 (367) T Consensus 99 -----------~~~---i~~~----~--------~----~~~~iiLVGNK~DL~~~-r~V~~~e~~~~a~~~~~~~~E~S 147 (168) T cd01866 99 -----------LED---ARQH----S--------N----SNMTIMLIGNKCDLESR-REVSYEEGEAFAKEHGLIFMETS 147 (168) T ss_pred -----------HHH---HHHH----C--------C----CCCEEEEEEECCCHHHC-CCCCHHHHHHHHHHCCCEEEEEC T ss_conf -----------999---9986----7--------9----99659984342354540-77899999999998699999976 Q ss_pred CHHHHHH Q ss_conf 0024665 Q gi|254780226|r 242 AAIEAEI 248 (367) Q Consensus 242 a~~E~ei 248 (367) T Consensus 148 Ak~~~nV 154 (168) T cd01866 148 AKTASNV 154 (168) T ss_pred CCCCCCH T ss_conf 7888088

HHsearch alignment for GI: 254780226 and conserved domain: cd01866