PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3426230-8 1987 However, complete methanethio derivatization of the sulfhydryl groups of HCII using methyl methanethiosulfonate did not alter heparin-catalyzed thrombin inhibition. methyl methanethiosulfonate 84-111 serpin family D member 1 Homo sapiens 73-77