The hemorrhagic metalloproteinase-disintegrin-like bothrojarin-1 is a potent inhibitor of collagen-induced platelet aggregation by blockage of alpha-2/beta-1 (ITGA2/ITGB1) integrin. It does not present any fibrinogen-clotting activity (By similarity). Binds 1 zinc ion per subunit. Monomer. Expressed by the venom gland. This protein seems to be found in newborn B.jararaca venom but not in adult snake venom. Glycosylated. Belongs to the venom metalloproteinase (M12B) family. P-III subfamily. P-IIIa sub-subfamily.