PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7126590-8 1982 The modification of tyrosine and tryptophan residues in thrombin influenced the clotting activity, while these were not involved for esterolysis. Tryptophan 33-43 coagulation factor II, thrombin Homo sapiens 56-64