Ontology highlight
ABSTRACT:
SUBMITTER: Wullschleger B
PROVIDER: S-EPMC509190 | biostudies-literature | 2004 Aug
REPOSITORIES: biostudies-literature
Wullschleger Benno B Kuhn-Nentwig Lucia L Tromp Jan J Kämpfer Urs U Schaller Johann J Schürch Stefan S Nentwig Wolfgang W
Proceedings of the National Academy of Sciences of the United States of America 20040722 31
The survival of the spider Cupiennius salei depends on its hunting success, which largely relies on its immediately paralyzing multicomponent venom. Here, we report on the isolation and characterization of CSTX-13, a neurotoxic enhancer in the spider venom. De novo elucidation of the disulfide bridge pattern of CSTX-13 and the neurotoxin CSTX-1 by tandem MS revealed an identical arrangement. However, in contrast to CSTX-1, CSTX-13 is a two-chain peptide with two interchain and two intrachain dis ...[more]