PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 32481979-8 2013 A series of pH titrations were also carried out, which quantified the shift of pH1/2 (pH when flactone = 0.5) after addition of the copolymers. copolymers 132-142 alanine--glyoxylate and serine--pyruvate aminotransferase Homo sapiens 79-84