1IRP

SOLUTION STRUCTURE OF HUMAN INTERLEUKIN-1 RECEPTOR ANTAGONIST PROTEIN

• PDB DOI: https://doi.org/10.2210/pdb1IRP/pdb

• Classification: CYTOKINE
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 1994-10-18 Released: 1995-02-27 
• Deposition Author(s): Stockman, B.J., Scahill, T.A., Strakalaitis, N.A.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Submitted: 12 

Literature

Solution structure of human interleukin-1 receptor antagonist protein.

Stockman, B.J., Scahill, T.A., Strakalaitis, N.A., Brunner, D.P., Yem, A.W., Deibel Jr., M.R.

(1994) FEBS Lett 349: 79-83

• PubMed: 8045306 
• DOI: https://doi.org/10.1016/0014-5793(94)00643-1
• Primary Citation of Related Structures:  
  1IRP


• PubMed Abstract: 
  

  Interleukin-1 receptor antagonist protein (IRAP) is a naturally occurring inhibitor of the interleukin-1 receptor. In contrast to IL-1 beta, IRAP binds to the IL-1 receptor but does not elicit a physiological response. We have determined the solution structure of IRAP using NMR spectroscopy. While the overall topology of the two 153-residue proteins is quite similar, functionally critical differences exist concerning the residues of the linear amino acid sequence that constitute structurally homologous regions in the two proteins. Structurally homologous residues important for IL-1 receptor binding are conserved between IRAP and IL-1 beta. By contrast, structurally homologous residues critical for receptor activation are not conserved between the two proteins.

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Organizational Affiliation: 

Upjohn Laboratories, Upjohn Company, Kalamazoo, MI 49007.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 17.28 kDa 
• Atom Count: 1,209 
• Modelled Residue Count: 153 
• Deposited Residue Count: 153 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
INTERLEUKIN-1 RECEPTOR ANTAGONIST	A	153	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P18510 (Homo sapiens) Explore P18510  Go to UniProtKB:  P18510
PHAROS:  P18510 GTEx:  ENSG00000136689

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Submitted: 12 

Structure Validation

Entry History 

Deposition Data

• Released Date: 1995-02-27 
Deposition Author(s): Stockman, B.J., Scahill, T.A., Strakalaitis, N.A.

Revision History  

• Version 1.0: 1995-02-27
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-02-23
  Changes: Database references, Derived calculations, Other