Fibrinogen-clotting enzyme TL-BJ isoform 1 (Fragment) Thrombin-like snake venom serine protease. Cleaves fibrinopeptides AM, AO, and AY; the aberrant fibrinogen is then incapable of being cross-linked, forming easily dispersible clots. TLB1_BOTJA 19 VIGGDECNINEHRSLALVY