PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22450003-1 2012 ABO antigens are oligosaccharide antigens, and are widely distributed on red blood and tissue cells as well as in saliva and body fluid. Oligosaccharides 17-32 ABO, alpha 1-3-N-acetylgalactosaminyltransferase and alpha 1-3-galactosyltransferase Homo sapiens 0-3