Agkistrodon piscivorus venom toxins

Agkistrodon piscivorus venom toxins represent the complex mixture of bioactive proteins and peptides found in the venom of the North American cottonmouth snake. The venom is primarily composed of zinc-dependent metalloproteinases (SVMPs), phospholipases A2 (PLA2s), and serine proteinases (SVSPs), which work synergistically to immobilize prey and initiate digestion [1][2]. SVMPs are largely responsible for local tissue destruction and hemorrhage by degrading basement membrane proteins, while PLA2s contribute to severe myotoxicity and inflammation by disrupting cell membranes [3]. Additionally, the venom contains disintegrins and C-type lectins that interfere with platelet function, and L-amino acid oxidases that induce oxidative stress and cytotoxicity [4]. From a therapeutic perspective, these toxins are the primary targets for antivenoms like CroFab and Anavip, which utilize purified antibodies to neutralize the enzymatic activity and prevent systemic toxicity [5]. Beyond envenomation treatment, specific toxins such as the disintegrin applaggin have been researched as templates for developing anti-platelet and anti-cancer therapeutics [6].

Other names

Cottonmouth venom proteinsWater moccasin venomAgkistrodon piscivorus venom componentsNorth American Cottonmouth venom

Neutralization of venom enzymes and toxins through antibody binding (Fab or F(ab')2 fragments) to prevent interaction with host tissues and substrates.