PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3603422-1 1987 A chromogenic substrate, H-D-Phe-Pip-Arg-pNA (S-2238) is a highly specific substrate to thrombin and releases p-nitroaniline (pNA) by the action of thrombin. 4-nitroaniline 110-124 prolactin induced protein Homo sapiens 33-36