PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 403956-6 1977 Thrombin modified with 2-hydroxy-5-nitrobenzyl bromide showed a 3-4 fold increase in Km and a decrease in V for the ester substrate. Esters 116-121 coagulation factor II, thrombin Bos taurus 0-8