>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=99.24 E-value=3.3e-10 Score=87.97 Aligned_cols=157 Identities=23% Similarity=0.281 Sum_probs=101.2 Q ss_pred EEEEECCCCCCHHHHHHHHHHHCCCCCCCCCCCEEECCCHHHHHHCCEEEEEEEEEEEECCCCCEEEEEEEECCCCCHHH Q ss_conf 79998013898778899999982980544443113058677987195052327999974378843899996178730027 Q gi|254780321|r 13 NFSIVAHIDHGKSTLADRFIQHCRGLTEREMSSQVLDNMDIERERGITIKAQTVRLNYTSTDAKDYQLNLIDTPGHVDFT 92 (606) Q Consensus 13 N~~IiaHvDhGKTTL~d~lL~~tg~i~~~~~~~~vlD~~~~EreRGITIka~~~~~~~~~~~~~~y~iNlIDTPGH~DF~ 92 (606) T Consensus 4 KivllGd~~VGKTsL~~rf~--~~~F~~~~~-~Ti----------g~df~~k~i~i----~dg~~v~l~IwDTaGqe~~~ 66 (211) T cd04111 4 RLIVIGDSTVGKSSLLKRFT--EGRFAEVSD-PTV----------GVDFFSRLIEI----EPGVRIKLQLWDTAGQERFR 66 (211) T ss_pred EEEEECCCCCCHHHHHHHHH--HCCCCCCCC-CCC----------CEEEEEEEEEE----CCCCEEEEEEEECCCCCCCC T ss_conf 99999999961999999998--199999868-720----------16889989997----79959999999798863456 Q ss_pred HHHHHHHHHCCEEEEEEECCCCCCHHHHHHHHH-HHHC----CCCEEEEECCCCCCCCCCCCH-HHHHHHHHHHHHHHHH Q ss_conf 999999973026899998687886558999999-9970----996799832678875321133-8887755532232100 Q gi|254780321|r 93 YEVSRSLSACEGSLLVVDATQGVEAQTLANVYQ-AIDN----NHEIITVLNKADLPSADPDRV-KKQIEETIGISTEDAL 166 (606) Q Consensus 93 ~EV~r~l~a~dgaiLvVdA~~Gvq~QT~~~~~~-A~~~----~l~~I~viNKiD~~~A~~e~v-~~ei~~~~g~~~~~ii 166 (606) T Consensus 67 si~~~yyr~a~g~ilVyDvt~~~SF~~l~~W~~ei~~~~~~~~~~iiLVGNK~DL~~~R--~Vs~ee~~~~A~~~~~~f~ 144 (211) T cd04111 67 SITRSYYRNSVGVLLVFDITNRESFEHVHDWLEEARSHIQPHRPVFILVGHKCDLESQR--QVTREEAEKLAKDLGMKYI 144 (211) T ss_pred CCHHHHHHHCCEEEEEECCCCHHHHHHHHHHHHHHHHHCCCCCCEEEEEEECCCHHHHC--CCCHHHHHHHHHHHCCEEE T ss_conf 44287742124468971477779999999999999997498885389887423128567--8899999999998399799 Q ss_pred HHHHHCCCCCCHHHHHHHHHHH Q ss_conf 0111002232006787763210 Q gi|254780321|r 167 LVSAKTGEGIPLLLERIVQQLP 188 (606) Q Consensus 167 ~vSAktG~GV~~LLd~Iv~~iP 188 (606) T Consensus 145 EtSAK~g~nV~e~F~~la~~i~ 166 (211) T cd04111 145 ETSARTGDNVEEAFELLTQEIY 166 (211) T ss_pred EECCCCCCCHHHHHHHHHHHHH T ss_conf 9759998198999999999999

HHsearch alignment for GI: 254780321 and conserved domain: cd04111