Alpha-conotoxin GIC from Conus geographus, a novel peptide antagonist of nicotinic acetylcholine receptors.

@article{McIntosh2002AlphaconotoxinGF,
  title={Alpha-conotoxin GIC from Conus geographus, a novel peptide antagonist of nicotinic acetylcholine receptors.},
  author={John McIntosh and Cheryl D Dowell and Maren Watkins and James E. Garrett and Doju Yoshikami and Baldomero M Olivera},
  journal={The Journal of biological chemistry},
  year={2002},
  volume={277 37},
  pages={33610-5}
}
Many venomous organisms produce toxins that disrupt neuromuscular communication to paralyze their prey. One common class of such toxins comprises nicotinic acetylcholine receptor antagonists (nAChRs). Thus, most toxins that act on nAChRs are targeted to the neuromuscular subtype. The toxin characterized in this report, alpha-conotoxin GIC, is a most striking exception. The 16-amino acid peptide was identified from a genomic DNA clone from Conus geographus. The predicted mature toxin was… CONTINUE READING
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