>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=99.15 E-value=4e-10 Score=85.67 Aligned_cols=156 Identities=17% Similarity=0.204 Sum_probs=102.3 Q ss_pred EEEEECCCCCCHHHHHHHHHHHCCCCCCCCCCCCEECCCCHHHHHCCCEEEEEEEEEEECCEEEEEECCCCCCCCHHHHH Q ss_conf 49998546898778899999983961423220000038857798709606467999998997999972898754079999 Q gi|254780233|r 21 NIAIIAHVDHGKTTLVDELLKQSGVFRDNQRVSERVMDCNDLEKERGITILAKVTSIVWNDVRINIVDTPGHADFGGEVE 100 (624) Q Consensus 21 NiaIiaHvDhGKTTL~d~LL~~sG~~~~~~~v~~~vmD~~~~EreRGITI~a~~~~~~~~~~~iNiiDTPGH~DF~gEVe 100 (624) T Consensus 2 KIv~vGd~~VGKTsli~r~~~--~~f~~~~-~~----------~Ti~~~~~~k~~~~~~~~v~l~iwDtaG~e~~~~l~~ 68 (191) T cd04112 2 KVMLLGDSGVGKTCLLVRFKD--GAFLNGN-FI----------ATVGIDFRNKVVTVDGVKVKLQIWDTAGQERFRSVTH 68 (191) T ss_pred EEEEECCCCCCHHHHHHHHHH--CCCCCCC-CC----------CCCCEEEEEEEEEECCEEEEEEEEECCCCCCCCCCHH T ss_conf 899999499879999999995--9789998-67----------7652477999999999999999997998633464647 Q ss_pred HHHHHHCEEEEEEECCCCCCHHHH---HHHHH-HHH---CCCCEEEEEECCCCCCCCHHHHHHHHHHHHHHCCCCHHHCC Q ss_conf 998742178999976878864789---99999-997---29978999975436674025689999988862267301104 Q gi|254780233|r 101 RILCMVESVVVLVDAAEGPMPQTK---FVVGK-ALK---IGLRPIVVVNKVDRSDARADEVINEVFDLFSALDATDAQLD 173 (624) Q Consensus 101 r~l~~~DgaiLvVdA~eGv~~QT~---~vl~~-A~~---~~l~~IvvINKiDr~~a~~~~v~~ei~dlf~~l~a~de~ld 173 (624) T Consensus 69 ~~~~~a~~~ilvydit~~---~Sf~~l~~w~~~i~~~~~~~~~iilVGNK~DL~~~r~V-~~~e~~~~a~-------~~~ 137 (191) T cd04112 69 AYYRDAHALLLLYDITNK---ASFDNIRAWLTEIKEYAQEDVVIMLLGNKADMSGERVV-KREDGERLAK-------EYG 137 (191) T ss_pred HHHHCCCEEEEEEECCCH---HHHHHHHHHHHHHHHHCCCCCEEEEECCCCCCCCCCCC-CHHHHHHHHH-------HCC T ss_conf 771177778999727988---99999999999999866678538986124655302679-9999999999-------829 Q ss_pred HHHHHHHHHCCEECCCCCCCCCCCCHHHHHHHHCCCCC Q ss_conf 26688788659164674223348641355532102454 Q gi|254780233|r 174 FPILYGSGRFGWMSDSSDGSRDQGMVPLLNLIVDHVPP 211 (624) Q Consensus 174 ~Pv~~~Sa~~G~~~~~~~~~~~~gl~~Lld~Ii~~iP~ 211 (624) T Consensus 138 ~~f~EtSAkt~-----------~nI~e~F~~i~~~i~~ 164 (191) T cd04112 138 VPFMETSAKTG-----------LNVELAFTAVAKELKH 164 (191) T ss_pred CEEEEECCCCC-----------CCHHHHHHHHHHHHHH T ss_conf 97999854898-----------0979999999999987

HHsearch alignment for GI: 254780233 and conserved domain: cd04112