A portion of amino acids 192-221 from the human protein was used as the immunogen for this ASS1 antibody.
ASS1 catalyzes the penultimate step of the arginine biosynthetic pathway. There are approximately 10 to 14 copies of this gene including the pseudogenes scattered across the human genome, among which the one located on chromosome 9 appears to be the only functional gene for argininosuccinate synthetase.
