2RUP

Solution structure of rat P2X4 receptor head domain

• PDB DOI: https://doi.org/10.2210/pdb2RUP/pdb
• BMRB: 11583

• Classification: TRANSPORT PROTEIN
• Organism(s): Rattus norvegicus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2014-11-12 Released: 2015-02-04 
• Deposition Author(s): Abe, Y., Igawa, T., Tsuda, M., Inoue, K., Ueda, T.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Solution structure of the rat P2X4 receptor head domain involved in inhibitory metal binding

Igawa, T., Abe, Y., Tsuda, M., Inoue, K., Ueda, T.

(2015) FEBS Lett 589: 680-686

• PubMed: 25662851 
• DOI: https://doi.org/10.1016/j.febslet.2015.01.034
• Primary Citation of Related Structures:  
  2RUP


• PubMed Abstract: 
  

  The P2X receptor is an ATP-gated cation channel expressed on the plasma membrane. The head domain (Gln111-Val167 in the rat P2X4 receptor) regulates ATP-induced cation influx. In this study, we prepared a head domain with three disulfide bonds, such as the intact rat P2X4 receptor contains. NMR analysis showed that the head domain possessed the same fold as in the zebrafish P2X4 receptor previously determined by crystallography. Furthermore, the inhibitory, divalent, metal ion binding sites were determined by NMR techniques. These findings will be useful for the design of specific inhibitors for the P2X receptor family.

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Organizational Affiliation: 

Department of Protein Structure, Function and Design, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 6.07 kDa 
• Atom Count: 417 
• Modelled Residue Count: 58 
• Deposited Residue Count: 58 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
P2X purinoceptor 4	A	58	Rattus norvegicus	Mutation(s): 0  Gene Names: P2rx4
UniProt
Find proteins for P51577 (Rattus norvegicus) Explore P51577  Go to UniProtKB:  P51577

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-02-04 
Deposition Author(s): Abe, Y., Igawa, T., Tsuda, M., Inoue, K., Ueda, T.

Revision History  

• Version 1.0: 2015-02-04
  Type: Initial release
  
• Version 1.1: 2018-10-17
  Changes: Data collection, Database references
• Version 1.2: 2019-12-11
  Changes: Advisory, Database references, Derived calculations
• Version 1.3: 2023-06-14
  Changes: Database references, Other