alpha-Conotoxin IMI

Article number:

5250031

Formula:

C52H78N20O15S4

Chemical description:

Sequence: [Cys2-Cys8, Cys3-Cys12] ; H-Gly-Cys-Cys-Ser-Asp-Pro-Arg-Cys-Ala-Trp-Arg-Cys-NH2

Molecular weight:

1351,60 g/mol

α-conotoxins IMI has been isolated from the venom of the cone snail Conus imperialis. α-conotoxins IMI act on postsynaptic membranes, they bind to the nicotinic acetylcholine receptors (nAChR) and thus inhibit them. This toxin blocks mammalian neuronal nAChRs (α-3/ß-2 > α-7 > α-3/ß-4). Has no effect on nAChRs composed of α-2/ß-2, α-3/ß-2, α-4/ß-2, α-2/ß-4, α-3/ß-4, or α-4/ß-4 subunits. α-conotoxins IMI acts voltage-independently. Is highly active against the neuromuscular receptor in frog.

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alpha-Conotoxin IMI

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