Crotaline snake venom toxins

Crotaline snake venom toxins are a complex assembly of bioactive proteins and peptides produced by snakes of the subfamily Crotalinae (pitvipers), including rattlesnakes. Major toxin types include snake venom metalloproteinases (SVMPs), phospholipases A2 (PLA2s), serine proteases, and small nonenzymatic toxins such as crotamine (a β-defensin-like myotoxin). These molecules exhibit diverse mechanisms: enzymatic toxins disrupt tissue and blood vessel integrity, leading to hemorrhage and inflammation, while nonenzymatic toxins like crotamine induce muscle contraction and cell death through ion channel modulation. Crotaline venoms cause local and systemic toxicity, including pain, cytotoxicity, bleeding, and, in some cases, cardiovascular collapse. Therapeutically, these toxins represent important targets for antivenom development and are studied for potential applications in biotechnology and drug discovery. Due to the heterogeneous nature of these toxins, the entry "Crotaline snake venom toxins" should be parsed into individual molecular target entries for precise database annotation.

Other names

Pitviper venom toxinsrattlesnake venom toxinscrotalid toxin(s)crotaminemyotoxin-αβ-defensin-like toxin

Enzyme inhibition (SVMP, PLA2 inhibitors); Neutralization via antibody binding (antivenom); Inhibition of ion channel interaction (for crotamine and β-defensin-like toxins)