Naja naja venom toxins (NNVT)

Naja naja venom toxins represent the complex proteomic profile of the Indian Cobra's venom, primarily consisting of three-finger toxins (3FTxs), phospholipase A2 (PLA2), and cobra venom factor (CVF) (UniProt Taxonomy ID: 8656). The alpha-neurotoxins within the 3FTx family are the most lethal components, acting as high-affinity antagonists of nicotinic acetylcholine receptors (nAChR) at the neuromuscular junction, which results in systemic flaccid paralysis and potential respiratory failure (PubMed: 30303968). PLA2 enzymes contribute to the venom's toxicity by inducing local tissue necrosis, inflammation, and hemolysis through the hydrolysis of membrane phospholipids. In therapeutic practice, these toxins are the direct targets of polyvalent antivenoms, which utilize purified antibodies to sequester and neutralize the proteins before they can bind to their physiological targets (StatPearls: Snake Antivenom). Additionally, specific components like PLA2 are being investigated as targets for small-molecule inhibitors like varespladib to provide field-stabilizing treatment for envenomation (PubMed: 32824317).

Other names

Indian Cobra venomSpectacled Cobra venomNaja naja venom proteinsNaja naja venom cocktail

Antibody-mediated neutralization of toxic proteins; Competitive inhibition of enzymatic components (e.g., PLA2 or metalloproteinases); Acetylcholinesterase inhibition to counteract neurotoxins.