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 | Olivera, Baldomero M.; Gray, William Robert | Contryphan is a D-tryptophan-containing Conus peptide | In this report, we document for the first time the occurrence of D-tryptophan in a normally translated polypeptide, contryphan. The peptide, isolated from the venom of the fish-hunting marine snail Conus radiatus, produces the "stiff-tail" syndrome in mice. | Conotoxins; Contryphan; D-tryptophan; Conus peptides; Conus radiatus; Stiff-tail syndrome | 1996 |
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 | Olivera, Baldomero M.; McIntosh, J. Michael | Novel post-translational modification involving bromination of tryptophan: identification of the residue, L-6-bromotryptophan, in peptides from Conus imperialis and Conus radiatus venom | We report a novel post-translational modification involving halogenation of tryptophan in peptides recovered from the venom of carnivorous marine cone snails (Conus). The residue, L-6-bromotryptophan, was identified in the sequence of a heptapeptide, isolated from Conus imperialis, a worm-hunting... | Conotoxins; Conus imperialis; Conus radiatus; L-6-bromotryptophan | 1997 |