4EQ3

Crystal Structure Analysis of Selenomethionine (Se-Met) Substituted Chicken Interferon Gamma Receptor Alpha Chain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.001 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.233 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the interferon gamma receptor alpha chain from chicken reveals an undetected extra helix compared with the human counterparts.

Ping, Z.Qi, J.Sun, Y.Lu, G.Shi, Y.Wang, X.Gao, G.F.Wang, M.

(2014) J.Interferon Cytokine Res. 34: 41-51

  • DOI: 10.1089/jir.2012.0160
  • Primary Citation of Related Structures:  4EQ2

  • PubMed Abstract: 
  • Interferon gamma (IFN-γ) is an important cytokine that induces antiviral, antiproliferative, and immunomodulatory effects on target cells, and is also crucial in the early defense against intracellular parasites, such as Listeria monocytogenes and To ...

    Interferon gamma (IFN-γ) is an important cytokine that induces antiviral, antiproliferative, and immunomodulatory effects on target cells, and is also crucial in the early defense against intracellular parasites, such as Listeria monocytogenes and Toxoplasma gondii. The biological activity of IFN-γ relies upon the formation of a complex with its 2 receptors, the interferon gamma alpha chain (IFNGR1) and beta chain (IFNGR2), which are type II cytokine receptors. Structural models of ligand-receptor interaction and complex structure of chicken IFNs with their receptors have remained elusive. Here we report the first structure of Gallus gallus (chicken) IFNGR1 (chIFNGR1) at 2.0 Å by molecule replacement according to the structure of selenomethionine substituted chIFNGR1. The structural comparison reveals its structural similarities with other class II cytokine receptors, despite divergent primary sequences. We further investigate the ligand-receptor interaction properties of chicken IFN-γ (chIFN-γ) and chIFNGR1 using size-exclusion chromatography and surface plasmon resonance techniques. These data aid in the understanding of the interaction of chicken (avian) IFN-γ with its receptors and its signal transduction.


    Organizational Affiliation

    1 National Animal Protozoa Laboratory, Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University , Beijing, China .




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Interferon gamma receptor 1
A
218Gallus gallusN/A
Find proteins for B4XN22 (Gallus gallus)
Go to UniProtKB:  B4XN22
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.001 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.233 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 63.608α = 90.00
b = 63.608β = 90.00
c = 215.750γ = 120.00
Software Package:
Software NamePurpose
Blu-Icedata collection
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-04-24
    Type: Initial release
  • Version 1.1: 2013-12-25
    Type: Database references
  • Version 1.2: 2014-05-21
    Type: Database references