>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=96.36 E-value=0.033 Score=34.20 Aligned_cols=152 Identities=16% Similarity=0.218 Sum_probs=67.9 Q ss_pred EEEECCCCCCHHHHHHHHHHHCCCEEEEEEECCCCCCCCCCCCCCHHHCCHHHHHHHHCCCEE--EE-EEEECCCEEE-E Q ss_conf 999879999989999999851898179986027888988334642010014554221027818--76-6661287045-4 Q gi|254780132|r 5 FVLIGASGVGKTTIAKQVVLNSEYLVMPVGVTTRRPRVDEKQYIDYRFISQSQFKGWKHTGLF--IE-TTKVRDEYYG-Y 80 (186) Q Consensus 5 ivi~GpsGsGK~tl~~~L~~~~~~~~~~v~~TTR~~R~~E~~g~dY~Fvs~~~F~~~i~~~~F--iE-~~~~~g~~YG-t 80 (186) T Consensus 5 ivllGd~~VGKTsL~~rf~~~--~F~~~~~~-T--------ig~df~~k~i-----~i~dg~~v~l~IwDTaGqe~~~si 68 (211) T cd04111 5 LIVIGDSTVGKSSLLKRFTEG--RFAEVSDP-T--------VGVDFFSRLI-----EIEPGVRIKLQLWDTAGQERFRSI 68 (211) T ss_pred EEEECCCCCCHHHHHHHHHHC--CCCCCCCC-C--------CCEEEEEEEE-----EECCCCEEEEEEEECCCCCCCCCC T ss_conf 999999996199999999819--99998687-2--------0168899899-----977995999999979886345644 Q ss_pred ECCCHHHHHHHCCCCCCCCC-CCHHHHHH-------HCCC-CCEEEEHCCCCCHHHHHHHHHHCCCCCHHHHHHHHHHHH Q ss_conf 42200233431024200254-20002444-------2054-320000002321899998762014544899999999865 Q gi|254780132|r 81 LKEDINNPMEHGYDILLILT-HQGLAPLK-------KLYE-DQVTSIFIAPPSEAELIQRRIKRREDIPFNLDPDLFGKN 151 (186) Q Consensus 81 s~~~i~~~~~~g~~~il~id-~~G~~~lk-------~~~~-~~~~~IfI~pps~~~L~~RL~~R~~e~~~~i~~r~~~~~ 151 (186) T Consensus 69 ~~~yyr~--a~g~ilVyDvt~~~SF~~l~~W~~ei~~~~~~~~~~iiLV--GNK~DL~~~---R--~Vs~ee~~~~-A~~ 138 (211) T cd04111 69 TRSYYRN--SVGVLLVFDITNRESFEHVHDWLEEARSHIQPHRPVFILV--GHKCDLESQ---R--QVTREEAEKL-AKD 138 (211) T ss_pred HHHHHHH--CCEEEEEECCCCHHHHHHHHHHHHHHHHHCCCCCCEEEEE--EECCCHHHH---C--CCCHHHHHHH-HHH T ss_conf 2877421--2446897147777999999999999999749888538988--742312856---7--8899999999-998 Q ss_pred HCCCEEEE----CCCHHHHHHHH-HHHHHHHHHCCC Q ss_conf 35988999----39789999999-999999973012 Q gi|254780132|r 152 HSYSFTIV----NNHLPTACRQV-GLIREFVKRGKK 182 (186) Q Consensus 152 ~~fD~iIi----Nddle~a~~~l-~~Iie~l~~~~~ 182 (186) T Consensus 139 ~~~~f~EtSAK~g~nV~e~F~~la~~i~~~~~~~~~ 174 (211) T cd04111 139 LGMKYIETSARTGDNVEEAFELLTQEIYERIKRGEL 174 (211) T ss_pred HCCEEEEECCCCCCCHHHHHHHHHHHHHHHHHCCCC T ss_conf 399799975999819899999999999999873896

HHsearch alignment for GI: 254780132 and conserved domain: cd04111