4B2U

S67, A spider venom toxin peptide from Sicarius dolichocephalus

• PDB DOI: https://doi.org/10.2210/pdb4B2U/pdb
• BMRB: 18600

• Classification: TOXIN
• Organism(s): Sicarius dolichocephalus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2012-07-18 Released: 2013-01-16 
• Deposition Author(s): Loening, N.M., Wilson, Z.N., Zobel-Thropp, P.A., Binford, G.J.

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Experimental Data Snapshot

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

Literature

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

• PubMed: 23342149 
• 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.

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Organizational Affiliation: 

Chemistry Department, Lewis & Clark College, Portland, Oregon, United States of America. [e-mail]

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 4.26 kDa 
• Atom Count: 294 
• Modelled Residue Count: 36 
• Deposited Residue Count: 36 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
S67	A	36	Sicarius dolichocephalus	Mutation(s): 0
UniProt
Find proteins for M1E1F0 (Hexophthalma dolichocephala) Explore M1E1F0  Go to UniProtKB:  M1E1F0

Experimental Data & Validation

Experimental Data

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-01-16 
Deposition Author(s): Loening, N.M., Wilson, Z.N., Zobel-Thropp, P.A., Binford, G.J.

Revision History  

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