Thrombin-like snake venom serine protease which potently induces platelet aggregation and has fibrinogenolytic activities. Clots purified fibrinogen and hydrolyzes alpha-chains (FGA). High concentrations of this enzyme also cleave prothrombin (F2) and factor X (F10). Is also able to activate factor XIII (F8). Its platelets aggregating activity is inhibited by chlorpromazine, theophylline mepacrine. Its platelet aggregating activity and its amidolytic activity are inhibited by PMSF, TPCK, TLCK and soybean trypsin inhibitors. Is unaffected by hirudin or by antithrombin-III in the presence of heparin. Monomer. Expressed by the venom gland. Belongs to the peptidase S1 family. Snake venom subfamily. Lacks the conserved Cys-50-Cys-66 disulfide bridge due to the replacement of Cys-50 by a Gly.