PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11719098-0 2002 Chromium(III) tris(picolinate) is mutagenic at the hypoxanthine (guanine) phosphoribosyltransferase locus in Chinese hamster ovary cells. Tromethamine 14-18 hypoxanthine-guanine phosphoribosyltransferase Cricetulus griseus 51-99