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2bc7

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Template:STRUCTURE 2bc7

Contents

Solution structure of [Sec2,8]-ImI

Template:ABSTRACT PUBMED 16500898

Function

[CA1_CONIM] Alpha-conotoxins act on postsynaptic membranes, they bind to the nicotinic acetylcholine receptors (nAChR) and thus inhibit them. This toxin blocks mammalian neuronal nAChRs (alpha-3/beta-2 > alpha-7 > alpha-3/beta-4). Has no effect on nAChRs composed of alpha-2/beta-2, alpha-3/beta-2, alpha-4/beta-2, alpha-2/beta-4, alpha-3/beta-4, or alpha-4/beta-4 subunits. Acts voltage-independently. Is highly active against the neuromuscular receptor in frog.[1]

About this Structure

2bc7 is a 1 chain structure. Full experimental information is available from OCA.

Reference

  • Armishaw CJ, Daly NL, Nevin ST, Adams DJ, Craik DJ, Alewood PF. Alpha-selenoconotoxins, a new class of potent alpha7 neuronal nicotinic receptor antagonists. J Biol Chem. 2006 May 19;281(20):14136-43. Epub 2006 Feb 24. PMID:16500898 doi:M512419200
  1. ↑ McIntosh JM, Yoshikami D, Mahe E, Nielsen DB, Rivier JE, Gray WR, Olivera BM. A nicotinic acetylcholine receptor ligand of unique specificity, alpha-conotoxin ImI. J Biol Chem. 1994 Jun 17;269(24):16733-9. PMID:8206995

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