A portion of amino acids 72-106 from the human protein was used as the immunogen for the ARF4 antibody.
ADP-ribosylation factor 4 is a GTP-binding protein that functions as an allosteric activator of the cholera toxin catalytic subunit, an ADP- ribosyltransferase. Involved in protein trafficking, may modulate vesicle budding and uncoating within the Golgi apparatus.