>cd04111 Rab39 Rab39 subfamily. Found in eukaryotes, Rab39 is mainly found in epithelial cell lines, but is distributed widely in various human tissues and cell lines. It is believed to be a novel Rab protein involved in regulating Golgi-associated vesicular transport during cellular endocytosis. 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 feature of most Rab proteins.

Probab=99.57 E-value=6.2e-14 Score=110.00 Aligned_cols=151 Identities=23% Similarity=0.308 Sum_probs=98.0 Q ss_pred EEEECCCCCCHHHHHHHHHCCCEEEECCCCCCEE--EEEEEEEEEC---CEEEEEEECCCCHHHCCCCCCCCCCHHHHHH Q ss_conf 9983389986889999986892021058888602--1278999739---9489999879840101235753210023455 Q gi|254780941|r 25 VALVGATNAGKSTLVNRFVGAKVSIVTHKVQTTR--SIVRGIVSEK---ESQIVFLDTPGIFNAKDSYHKLMIRLSWSTI 99 (311) Q Consensus 25 VaivG~pN~GKSTL~N~l~g~~vsivS~k~~TTr--~~i~gi~~~~---~~qiifvDTPG~~~~~~~l~~~~~~~~~~~l 99 (311) T Consensus 5 ivllGd~~VGKTsL~~rf~~~~F~~~---~~~Tig~df~~k~i~i~dg~~v~l~IwDTaGqe--------~~~si~~~yy 73 (211) T cd04111 5 LIVIGDSTVGKSSLLKRFTEGRFAEV---SDPTVGVDFFSRLIEIEPGVRIKLQLWDTAGQE--------RFRSITRSYY 73 (211) T ss_pred EEEECCCCCCHHHHHHHHHHCCCCCC---CCCCCCEEEEEEEEEECCCCEEEEEEEECCCCC--------CCCCCHHHHH T ss_conf 99999999619999999981999998---687201688998999779959999999798863--------4564428774 Q ss_pred HHHHHHCCCCHHHHHHHC-CHHHHHHHHHH----CCCCCEEEEEECCCHHHHHH-HHHHHHHHHCCCCCCCCCCCCCCCC Q ss_conf 553210011000010000-00012234544----28720257872110104345-7888864100123343110001387 Q gi|254780941|r 100 KHADIVCLVVDSHRELKV-NIHDLLKEIAK----RSSRLILILNKIDCVKPERL-LEQAEIANKLVFIEKTFMVSATKGH 173 (311) Q Consensus 100 ~~aDiil~VvDa~~~~~~-~~~~il~~l~~----~~~p~IiVlNKiDlv~~~~l-~~~~~~~~~~~~~~~i~~ISAk~g~ 173 (311) T Consensus 74 r~a~g~ilVyDvt~~~SF~~l~~W~~ei~~~~~~~~~~iiLVGNK~DL~~~R~Vs~ee~~~~A~~~~~-~f~EtSAK~g~ 152 (211) T cd04111 74 RNSVGVLLVFDITNRESFEHVHDWLEEARSHIQPHRPVFILVGHKCDLESQRQVTREEAEKLAKDLGM-KYIETSARTGD 152 (211) T ss_pred HHCCEEEEEECCCCHHHHHHHHHHHHHHHHHCCCCCCEEEEEEECCCHHHHCCCCHHHHHHHHHHHCC-EEEEECCCCCC T ss_conf 21244689714777799999999999999974988853898874231285678899999999998399-79997599981 Q ss_pred CHHHHHHHHHHHCC Q ss_conf 42678999998366 Q gi|254780941|r 174 GCDDVLNYLCSTLP 187 (311) Q Consensus 174 Gid~L~~~L~~~lp 187 (311) T Consensus 153 nV~e~F~~la~~i~ 166 (211) T cd04111 153 NVEEAFELLTQEIY 166 (211) T ss_pred CHHHHHHHHHHHHH T ss_conf 98999999999999

HHsearch alignment for GI: 254780941 and conserved domain: cd04111