PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 914638-3 1977 This method, together with the use of cadmium acetate/ninhydrin staining, allows the identification of Hb D-Los Angeles, and other possible mutations of beta121, by peptide mapping. Ninhydrin 54-63 HBD Homo sapiens 103-107