2M9L

Solution structure of protoxin-1

• PDB DOI: https://doi.org/10.2210/pdb2M9L/pdb
• BMRB: 19300

• Classification: TOXIN
• Organism(s): Thrixopelma pruriens
• Mutation(s): No 


• Deposited: 2013-06-13 Released: 2014-04-30 
• Deposition Author(s): Daly, N.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

A tarantula-venom peptide antagonizes the TRPA1 nociceptor ion channel by binding to the S1-S4 gating domain.

Gui, J., Liu, B., Cao, G., Lipchik, A.M., Perez, M., Dekan, Z., Mobli, M., Daly, N.L., Alewood, P.F., Parker, L.L., King, G.F., Zhou, Y., Jordt, S.E., Nitabach, M.N.

(2014) Curr Biol 24: 473-483

• PubMed: 24530065 
• DOI: https://doi.org/10.1016/j.cub.2014.01.013
• Primary Citation of Related Structures:  
  2M9L


• PubMed Abstract: 
  

  The venoms of predators have been an excellent source of diverse highly specific peptides targeting ion channels. Here we describe the first known peptide antagonist of the nociceptor ion channel transient receptor potential ankyrin 1 (TRPA1).

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Organizational Affiliation: 

Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT 06520, USA; Department of Genetics, Yale School of Medicine, New Haven, CT 06520, USA; Program in Cellular Neuroscience, Neurodegeneration, and Repair, Yale School of Medicine, New Haven, CT 06520, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 4 kDa 
• Atom Count: 276 
• Modelled Residue Count: 35 
• Deposited Residue Count: 35 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-theraphotoxin-Tp1a	A	35	Thrixopelma pruriens	Mutation(s): 0
UniProt
Find proteins for P83480 (Thrixopelma pruriens) Explore P83480  Go to UniProtKB:  P83480

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-04-30 
Deposition Author(s): Daly, N.

Revision History  

• Version 1.0: 2014-04-30
  Type: Initial release
  
• Version 1.1: 2023-06-14
  Changes: Data collection, Database references, Other