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Novel M‐Superfamily and T‐Superfamily conotoxins and contryphans from the vermivorous snailConus figulinus

 

作者: Rajaian Pushpabai Rajesh,  

 

期刊: Journal of Peptide Science  (WILEY Available online 2015)
卷期: Volume 21, issue 1  

页码: 29-39

 

ISSN:1075-2617

 

年代: 2015

 

DOI:10.1002/psc.2715

 

关键词: cone snails;de novosequencing;disulfide rich peptides;venom;M‐Superfamily conotoxins;T‐Superfamily Conotoxins;contryphans

 

数据来源: WILEY

 

摘要:

The venom ofConus figulinus, a vermivorous cone snail, found in the south east coast of India, has been studied in an effort to identify novel peptide toxins. The amino acid sequences of seven peptides have been established usingde novomass spectrometric based sequencing methods. Among these, three peptides belong to the M‐Superfamily conotoxins, namely, Fi3a, Fi3b, and Fi3c, and one that belongs to the T‐Superfamily, namely, Fi5a. The other three peptides are contryphans, namely, contryphans fib, fic, and fid. Of these Fi3b, Fi3c, Fi5a, and contryphan fib are novel and are reported for the first time from venom ofC. figulinus. The details of the sequencing methods and the relationship of these peptides with other ‘M’‐Superfamily conotoxins from the fish hunting and mollusk hunting clades are discussed. These novel peptides could serve as a lead compounds for the development of neuropharmacologically important drugs. Copyright © 2014 European Peptide Society and John Wil

 

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