PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6433999-3 1984 These findings suggest that one, or both, of the two arginyl residues which appear to be unique to the active sites of the mammalian CA III isozymes are modified by butanedione. arginyl 53-60 carbonic anhydrase 3 Homo sapiens 133-139