>cd04112 Rab26 Rab26 subfamily. First identified in rat pancreatic acinar cells, Rab26 is believed to play a role in recruiting mature granules to the plasma membrane upon beta-adrenergic stimulation. Rab26 belongs to the Rab functional group III, which are considered key regulators of intracellular vesicle transport during exocytosis. 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=99.45 E-value=3.5e-12 Score=101.23 Aligned_cols=159 Identities=19% Similarity=0.269 Sum_probs=103.9 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 2 KIv~vGd~~VGKTsli~r~~--~~~f~~~~~~~----------Ti~~~~~~k~~-----~~~~~~v~l~iwDtaG~e~~~ 64 (191) T cd04112 2 KVMLLGDSGVGKTCLLVRFK--DGAFLNGNFIA----------TVGIDFRNKVV-----TVDGVKVKLQIWDTAGQERFR 64 (191) T ss_pred EEEEECCCCCCHHHHHHHHH--HCCCCCCCCCC----------CCCEEEEEEEE-----EECCEEEEEEEEECCCCCCCC T ss_conf 89999949987999999999--59789998677----------65247799999-----999999999999799863346 Q ss_pred HHHHHHHHHCCEEEEEEECCCCCCHHHHHHHHH-HHH---CCCCEEEEECCCCCCCCCCC--CHHHHHHHHHHHHHHHHH Q ss_conf 999999973026899998687886558999999-997---09967998326788753211--338887755532232100 Q gi|254780321|r 93 YEVSRSLSACEGSLLVVDATQGVEAQTLANVYQ-AID---NNHEIITVLNKADLPSADPD--RVKKQIEETIGISTEDAL 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 65 ~l~~~~~~~a~~~ilvydit~~~Sf~~l~~w~~~i~~~~~~~~~iilVGNK~DL~~~r~V~~~e~~~~a~~~~~---~f~ 141 (191) T cd04112 65 SVTHAYYRDAHALLLLYDITNKASFDNIRAWLTEIKEYAQEDVVIMLLGNKADMSGERVVKREDGERLAKEYGV---PFM 141 (191) T ss_pred CCHHHHHHCCCEEEEEEECCCHHHHHHHHHHHHHHHHHCCCCCEEEEECCCCCCCCCCCCCHHHHHHHHHHCCC---EEE T ss_conf 46477711777789997279889999999999999986667853898612465530267999999999998299---799 Q ss_pred HHHHHCCCCCCHHHHHHHHHHHCCC Q ss_conf 0111002232006787763210001 Q gi|254780321|r 167 LVSAKTGEGIPLLLERIVQQLPSPT 191 (606) Q Consensus 167 ~vSAktG~GV~~LLd~Iv~~iP~P~ 191 (606) T Consensus 142 EtSAkt~~nI~e~F~~i~~~i~~~~ 166 (191) T cd04112 142 ETSAKTGLNVELAFTAVAKELKHRK 166 (191) T ss_pred EECCCCCCCHHHHHHHHHHHHHHHC T ss_conf 9854898097999999999998742

HHsearch alignment for GI: 254780321 and conserved domain: cd04112