6OFA

Wasabi Receptor Toxin

  • Classification: TOXIN
  • Organism(s): Urodacus manicatus
  • Mutation(s): No 

  • Deposited: 2019-03-28 Released: 2019-08-28 
  • Deposition Author(s): Lin King, J.V., Kelly, M.J.S., Julius, D.
  • Funding Organization(s): National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 50 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

A Cell-Penetrating Scorpion Toxin Enables Mode-Specific Modulation of TRPA1 and Pain.

Lin King, J.V.Emrick, J.J.Kelly, M.J.S.Herzig, V.King, G.F.Medzihradszky, K.F.Julius, D.

(2019) Cell 178: 1362-1374.e16

  • DOI: https://doi.org/10.1016/j.cell.2019.07.014
  • Primary Citation of Related Structures:  
    6OFA

  • PubMed Abstract: 

    TRPA1 is a chemosensory ion channel that functions as a sentinel for structurally diverse electrophilic irritants. Channel activation occurs through an unusual mechanism involving covalent modification of cysteine residues clustered within an amino-terminal cytoplasmic domain. Here, we describe a peptidergic scorpion toxin (WaTx) that activates TRPA1 by penetrating the plasma membrane to access the same intracellular site modified by reactive electrophiles. WaTx stabilizes TRPA1 in a biophysically distinct active state characterized by prolonged channel openings and low Ca 2+ permeability. Consequently, WaTx elicits acute pain and pain hypersensitivity but fails to trigger efferent release of neuropeptides and neurogenic inflammation typically produced by noxious electrophiles. These findings provide a striking example of convergent evolution whereby chemically disparate animal- and plant-derived irritants target the same key allosteric regulatory site to differentially modulate channel activity. WaTx is a unique pharmacological probe for dissecting TRPA1 function and its contribution to acute and persistent pain.


  • Organizational Affiliation

    Department of Physiology, University of California, San Francisco, San Francisco, CA 94143, USA; Neuroscience Graduate Program, University of California, San Francisco, San Francisco, CA 94143, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Wasabi Receptor Toxin33Urodacus manicatusMutation(s): 0 
UniProt
Find proteins for C0HLG4 (Urodacus manicatus)
Explore C0HLG4 
Go to UniProtKB:  C0HLG4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupC0HLG4
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 50 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)United StatesR35 NS105038
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)United StatesR37 NS065071

Revision History  (Full details and data files)

  • Version 1.0: 2019-08-28
    Type: Initial release
  • Version 1.1: 2019-09-11
    Changes: Data collection, Database references
  • Version 1.2: 2019-09-18
    Changes: Data collection, Database references
  • Version 1.3: 2019-12-18
    Changes: Author supporting evidence
  • Version 1.4: 2023-06-14
    Changes: Database references, Other