The ELISA kits listed below target F2, the symbol for the human gene, coagulation factor II, thrombin, and a member of the Peptidase S1 family. The protein encoded by F2 has a predicted amino acid length of 622, a mass of 70 kDa, and a secreted subcellular localization. Glycosylation has been reported. Pathologic involvement is reported in Factor II deficiency. F2 may also be known by the following names: RPRGL2, PT, serine protease, prothrombin B-chain, prepro-coagulation factor II, and prothrombin.