ID 3.4.21.55 DE venombin AB. AN Bitis gabonica serine proteinase. AN gabonase. CA Preferential cleavage: Arg-|-Xaa bonds in fibrinogen to form fibrin and CA release fibrinopeptides A and B. CC -!- From the venom of the Gaboon viper Bitis gabonica. CC -!- Activates factor XIII. CC -!- Not inhibited by antithrombin III/heparin or hirudin, unlike CC EC 3.4.21.5. DR P0C577, VSPG_BITGA ; //