PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3424436-0 1987 Neutralization of ABO blood group antibodies by specific oligosaccharides. Oligosaccharides 57-73 ABO, alpha 1-3-N-acetylgalactosaminyltransferase and alpha 1-3-galactosyltransferase Homo sapiens 18-33