>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=90.13  E-value=0.67  Score=25.60  Aligned_cols=19  Identities=26%  Similarity=0.641  Sum_probs=16.2

Q ss_pred             EEEEECCCCCCCHHHHHHH
Q ss_conf             3655247788611589999
Q gi|254780617|r  164 RELIIGDRKTGKTSIILDT  182 (509)
Q Consensus       164 R~~I~g~~g~GKt~l~~~~  182 (509)
T Consensus         2 KIv~vGd~~VGKTsli~r~   20 (191)
T cd04112           2 KVMLLGDSGVGKTCLLVRF   20 (191)
T ss_pred             EEEEECCCCCCHHHHHHHH
T ss_conf             8999994998799999999