>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=99.53 E-value=5.7e-14 Score=99.44 Aligned_cols=157 Identities=18% Similarity=0.182 Sum_probs=87.0 Q ss_pred CEEEEECCCCCCHHHHHHHHHCCCCEEEECCCCCEEEECCEEEEEEEEEEE-ECCCEEEEEECCHHHHHHHHHHHHHHHH Q ss_conf 689997489988989999973897379873888414521202665556785-0896499997600101112244789888 Q gi|254780484|r 30 PEIAFSGRSNVGKSSLINILVNRKNLARTSNAPGRTQHLNFFVPKDFSNLK-NNLPAMALVDMPGYGYARAPKKNVDSWG 108 (212) Q Consensus 30 p~VaivG~~NvGKSSLiNaL~g~~~~a~~~~~p~tt~~~~~~~~~~~~~~~-~~~~~~~~~DtpG~~~~~~~~~~~~~~~ 108 (212) T Consensus 3 fKivllGd~~VGKTsL~~rf~~~~F~-~-~~~~Tig~d----f~~k~i~i~dg~~v~l~IwDTaGqe~~~si~~~yyr-- 74 (211) T cd04111 3 FRLIVIGDSTVGKSSLLKRFTEGRFA-E-VSDPTVGVD----FFSRLIEIEPGVRIKLQLWDTAGQERFRSITRSYYR-- 74 (211) T ss_pred EEEEEECCCCCCHHHHHHHHHHCCCC-C-CCCCCCCEE----EEEEEEEECCCCEEEEEEEECCCCCCCCCCHHHHHH-- T ss_conf 99999999996199999999819999-9-868720168----899899977995999999979886345644287742-- Q ss_pred HHHHHHHHHHHHHCCCCCCCCCCCC--CCHHH---HHHHHHHCCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHCCC Q ss_conf 8998777766420000011223578--87545---455432102575322122221111024689999999999753136 Q gi|254780484|r 109 GLIVRYLSERSTLRCVYLLIDCRHG--VKQID---QDVFSFLDKKAVSYQIVLTKIDKLSPTTAQETLEKTKYLIRNYPT 183 (212) Q Consensus 109 ~~~~~~~~~~~~~~~~~~~~~~~~~--~~~~~---~~~~~~~~~~~~~~~~v~nK~D~~~~~~~~~~~~~~~~~~~~~~~ 183 (212) T Consensus 75 -----------~a~g~ilVyDvt~~~SF~~l~~W~~ei~~~~~~~~~~iiLVGNK~DL~~~R~Vs--~ee~~~~A~~~-- 139 (211) T cd04111 75 -----------NSVGVLLVFDITNRESFEHVHDWLEEARSHIQPHRPVFILVGHKCDLESQRQVT--REEAEKLAKDL-- 139 (211) T ss_pred -----------HCCEEEEEECCCCHHHHHHHHHHHHHHHHHCCCCCCEEEEEEECCCHHHHCCCC--HHHHHHHHHHH-- T ss_conf -----------124468971477779999999999999997498885389887423128567889--99999999983-- Q ss_pred CCCCEEEEECCCCCCHHHHHHHHHHHH Q ss_conf 898689998888899899999999872 Q gi|254780484|r 184 AHPEVIPTSSVKRKGIEVLRKAILETI 210 (212) Q Consensus 184 ~~~~i~~vSA~~g~Gi~eL~~~I~~~l 210 (212) T Consensus 140 -~~~f~EtSAK~g~nV~e~F~~la~~i 165 (211) T cd04111 140 -GMKYIETSARTGDNVEEAFELLTQEI 165 (211) T ss_pred -CCEEEEECCCCCCCHHHHHHHHHHHH T ss_conf -99799975999819899999999999

HHsearch alignment for GI: 254780484 and conserved domain: cd04111