PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25728481-1 2015 BACKGROUND: Simultaneous inactivation of pig GGTA1 and CMAH genes eliminates carbohydrate xenoantigens recognized by human antibodies. Carbohydrates 77-89 N-acetyllactosaminide alpha-1,3-galactosyltransferase Sus scrofa 45-50