PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2042743-5 1991 The most prominent fragment ions containing platinum were [HB2.Pt.B3H]+ and [HB1.Pt.B2H]+, where B1, B2, and B3 were bases in the oligonucleotide tetramer, one of which was usually guanine. Guanine 181-188 immunoglobulin kappa variable 7-3 (pseudogene) Homo sapiens 97-111