ADPRIBOSYLATION FACTOR

ADP-ribosylation factor: translation

Ubiquitous GTP-binding protein, approximately 20 kD, N-myristoylated, stimulates cholera toxin ADP-ribosylation. Mediates binding of non-clathrin coated vesicles and AP1 (adaptor-protein 1) of clathrin-coated vesicles to Golgi membranes. At least 6 isoforms have been identified.