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Protein Domain : IPR018072

Description  Conotoxin consists of several alpha conotoxin precursor proteins from a number of Conus species. Cone snail toxins, conotoxins, are small peptides with disulphide connectivity, that target ion-channels or G-protein coupled receptors. Based on the number and pattern of disulphide bonds and biological activities, conotoxins can be classified into several families [ ]. Alpha-conotoxins are neurotoxins from the venom of fish-hunting cone snails that block nicotinic acetylcholine receptors (nAChRs) []. Omega, delta and kappa families of conotoxins have a knottin or inhibitor cystine knot scaffold. The knottin scaffold is a very special disulphide through disulphide knot, in which the III-VI disulphide bond crosses the macrocycle formed by two other disulphide bonds (I-IV and II-V) and the interconnecting backbone segments, where I-VI indicates the six cysteine residues starting from the N terminus. Name  Conotoxin, alpha-type, conserved site
Short Name  Conotoxin_a-typ_CS Type  Conserved_site
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Genomics

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