FEATURES

FAMILY

DESCRIPTION

Also known as RAB1A_HUMAN, RAB1A, RAB1. The small GTPases Rab are key regulators of intracellular membrane trafficking, from the formation of transport vesicles to their fusion with membranes. Rabs cycle between an inactive GDP-bound form and an active GTP-bound form that is able to recruit to membranes different sets of downstream effectors directly responsible for vesicle formation, movement, tethering and fusion. RAB1A regulates vesicular protein transport from the endoplasmic reticulum (ER) to the Golgi compartment and on to the cell surface, and plays a role in IL-8 and growth hormone secretion. Regulates the level of CASR present at the cell membrane. Plays a role in cell adhesion and cell migration, via its role in protein trafficking. Plays a role in autophagosome assembly and cellular defense reactions against pathogenic bacteria. Plays a role in microtubule-dependent protein transport by early endosomes and in anterograde melanosome transport. May interact with YIPF5 (By similarity). Interacts with C9orf72; the interaction mediates recruitment of RAB1A to the ATG1/ULK1 kinase complex (PubMed:27334615). Interacts with GDI1; this promotes dissociation from membranes (PubMed:23815289, PubMed:20176951).

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EXTERNAL LINKS

RAB1A

Ras-related protein Rab-1A

ligandability Mutations

RAB1A

Molecular Synopsis