S67, A spider venom toxin peptide from Sicarius dolichocephalus

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: TOTAL ENERGY 

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Solution Structures of Two Homologous Venom Peptides from Sicarius Dolichocephalus.

Loening, N.M.Wilson, Z.N.Zobel-Thropp, P.A.Binford, G.J.

(2013) PLoS One 8: 54401

  • DOI: https://doi.org/10.1371/journal.pone.0054401
  • Primary Citation of Related Structures:  
    4B2U, 4B2V

  • PubMed Abstract: 

    We present solution-state NMR structures for two putative venom peptides from Sicarius dolichocephalus. These peptides were identified from cDNA libraries created from venom gland mRNA and then recombinantly expressed. They are the first structures from any species of Sicarius spiders, and the first peptide structures for any haplogyne spiders. These peptides are homologous to one another, and while they have at most only 20% sequence identity with known venom peptides their structures follow the inhibitor cystine knot motif that has been found in a broad range of venom peptides.

  • Organizational Affiliation

    Chemistry Department, Lewis & Clark College, Portland, Oregon, United States of America. loening@lclark.edu

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
S6736Sicarius dolichocephalusMutation(s): 0 
Find proteins for M1E1F0 (Hexophthalma dolichocephala)
Explore M1E1F0 
Go to UniProtKB:  M1E1F0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupM1E1F0
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: TOTAL ENERGY 

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-01-16
    Type: Initial release
  • Version 1.1: 2013-02-06
    Changes: Database references