About The Medical Condition Alpha-Conotoxin
Find the definition of the medical term Alpha-Conotoxin. Alpha-Conotoxin defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Alpha-Conotoxin
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What's The Definition Of The Medical Condition Alpha-Conotoxin?
Peptide neurotoxins from the marine fish-hunting snails of the genus Conus. They contain 13 to 29 amino acids which are strongly basic and are highly cross-linked by disulfide bonds. There are three types of conotoxins, omega-, alpha-, and mu-. OMEGA-CONOTOXINS inhibit voltage-activated entry of calcium into the presynaptic membrane and therefore the release of ACETYLCHOLINE. Alpha-conotoxins inhibit the postsynaptic acetylcholine receptor. Mu-conotoxins prevent the generation of muscle action potentials. (From Concise Encyclopedia Biochemistry and Molecular Biology, 3rd ed)
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