PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23195954-2 2013 We demonstrate unknown facets of calnuc, which is a serine protease in which Ser-378 of GXSXG motif, Asp-328 of DTG motif, and His-339 form the "catalytic triad," locating the enzyme active site in the C-terminal region. Histidine 127-130 coagulation factor II, thrombin Homo sapiens 52-67