PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15372880-1 2004 A new assay based on using an original chromogenic substrate (z-Ala-Ala-Arg-pNa) and designed for the determination of antithrombin III is described in the paper. z-ala-ala-arg 62-75 serpin family C member 1 Homo sapiens 119-135