2N27 | pdb_00002n27

Competitive inhibition of TRPV1 calmodulin interaction by vanilloids

• PDB DOI: https://doi.org/10.2210/pdb2N27/pdb
• BMRB: 25588

• Classification: METAL BINDING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2015-04-29 Released: 2016-07-06 
• Deposition Author(s): Hetenyi, A., Nemeth, L., Weber, E., Szakonyi, G., Winter, Z., Josvay, K., Bartus, E., Olah, Z., Martinek, T.A.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: back calculated data agree with experimental NOESY spectrum 

Literature

Competitive inhibition of TRPV1-calmodulin interaction by vanilloids.

Hetenyi, A., Nemeth, L., Weber, E., Szakonyi, G., Winter, Z., Josvay, K., Bartus, E., Olah, Z., Martinek, T.A.

(2016) FEBS Lett 590: 2768-2775

• PubMed: 27339229 
• DOI: https://doi.org/10.1002/1873-3468.12267
• Primary Citation Related Structures: 
  2N27


• PubMed Abstract: 
  

  There is enormous interest toward vanilloid agonists of the pain receptor TRPV1 in analgesic therapy, but the mechanisms of their sensory neuron-blocking effects at high or repeated doses are still a matter of debate. Our results have demonstrated that capsaicin and resiniferatoxin form nanomolar complexes with calmodulin, and competitively inhibit TRPV1-calmodulin interaction. These interactions involve the protein recognition interface of calmodulin, which is responsible for all of the cell-regulatory calmodulin-protein interactions. These results draw attention to a previously unknown vanilloid target, which may contribute to the explanation of the paradoxical pain-modulating behavior of these important pharmacons.

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Organizational Affiliation: 
• Department of Medical Chemistry, University of Szeged, Hungary.
SZTE-MTA Lendület Foldamer Research Group, Institute of Pharmaceutical Analysis, University of Szeged, Hungary.
Institute of Pharmaceutical Analysis, University of Szeged, Hungary.
Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Szeged, Hungary.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 17.19 kDa 
• Atom Count: 1,192 
• Modeled Residue Count: 148 
• Deposited Residue Count: 148 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Calmodulin	A	148	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P0DP23 (Homo sapiens) Explore P0DP23  Go to UniProtKB:  P0DP23
PHAROS:  P0DP23 GTEx:  ENSG00000198668

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
4DY	F [auth A]	(6E)-N-(4-hydroxy-3-methoxybenzyl)-8-methylnon-6-enamide C18 H27 N O3 YKPUWZUDDOIDPM-SOFGYWHQSA-N
CA	B [auth A], C [auth A], D [auth A], E [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: back calculated data agree with experimental NOESY spectrum 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2016-07-06 
Deposition Author(s): Hetenyi, A., Nemeth, L., Weber, E., Szakonyi, G., Winter, Z., Josvay, K., Bartus, E., Olah, Z., Martinek, T.A.

Revision History  

• Version 1.0: 2016-07-06
  Type: Initial release
  
• Version 1.1: 2016-08-03
  Changes: Structure summary
• Version 1.2: 2016-09-14
  Changes: Database references
• Version 1.3: 2023-06-14
  Changes: Data collection, Database references, Derived calculations, Other, Structure summary
• Version 1.4: 2024-05-15
  Changes: Data collection, Database references