2MPQ

Solution structure of the sodium channel toxin Hd1a

• PDB DOI: https://doi.org/10.2210/pdb2MPQ/pdb
• BMRB: 19998

• Classification: TOXIN
• Organism(s): Haplopelma
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2014-06-01 Released: 2015-03-25 
• Deposition Author(s): Klint, J.K., Mobli, M., King, G.F.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: Best MobProbity score 

Literature

Seven novel modulators of the analgesic target NaV 1.7 uncovered using a high-throughput venom-based discovery approach.

Klint, J.K., Smith, J.J., Vetter, I., Rupasinghe, D.B., Er, S.Y., Senff, S., Herzig, V., Mobli, M., Lewis, R.J., Bosmans, F., King, G.F.

(2015) Br J Pharmacol 172: 2445-2458

• PubMed: 25754331 
• DOI: https://doi.org/10.1111/bph.13081
• Primary Citation of Related Structures:  
  2MPQ


• PubMed Abstract: 
  

  Chronic pain is a serious worldwide health issue, with current analgesics having limited efficacy and dose-limiting side effects. Humans with loss-of-function mutations in the voltage-gated sodium channel NaV 1.7 (hNaV 1.7) are indifferent to pain, making hNaV 1.7 a promising target for analgesic development. Since spider venoms are replete with NaV channel modulators, we examined their potential as a source of hNaV 1.7 inhibitors.

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Organizational Affiliation: 

Centre for Pain Research, Institute for Molecular Bioscience, St. Lucia, Qld, Australia.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 3.89 kDa 
• Atom Count: 266 
• Modelled Residue Count: 36 
• Deposited Residue Count: 36 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hd1a	A	36	Haplopelma	Mutation(s): 0
UniProt
Find proteins for A0A0J9X1W9 (Cyriopagopus doriae) Explore A0A0J9X1W9  Go to UniProtKB:  A0A0J9X1W9

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: Best MobProbity score 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-03-25 
Deposition Author(s): Klint, J.K., Mobli, M., King, G.F.

Revision History  

• Version 1.0: 2015-03-25
  Type: Initial release
  
• Version 1.1: 2015-05-06
  Changes: Database references
• Version 1.2: 2023-06-14
  Changes: Data collection, Database references, Other