2YEZ

COMPLEX OF A B21 CHICKEN MHC CLASS I MOLECULE AND A 10MER CHICKEN PEPTIDE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.251 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Expression levels of MHC class I molecules are inversely correlated with promiscuity of peptide binding.

Chappell, P.Meziane, e.l..K.Harrison, M.Magiera, L.Hermann, C.Mears, L.Wrobel, A.G.Durant, C.Nielsen, L.L.Buus, S.Ternette, N.Mwangi, W.Butter, C.Nair, V.Ahyee, T.Duggleby, R.Madrigal, A.Roversi, P.Lea, S.M.Kaufman, J.

(2015) Elife 4: e05345-e05345

  • DOI: 10.7554/eLife.05345
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Highly polymorphic major histocompatibility complex (MHC) molecules are at the heart of adaptive immune responses, playing crucial roles in many kinds of disease and in vaccination. We report that breadth of peptide presentation and level of cell sur ...

    Highly polymorphic major histocompatibility complex (MHC) molecules are at the heart of adaptive immune responses, playing crucial roles in many kinds of disease and in vaccination. We report that breadth of peptide presentation and level of cell surface expression of class I molecules are inversely correlated in both chickens and humans. This relationship correlates with protective responses against infectious pathogens including Marek's disease virus leading to lethal tumours in chickens and human immunodeficiency virus infection progressing to AIDS in humans. We propose that differences in peptide binding repertoire define two groups of MHC class I molecules strategically evolved as generalists and specialists for different modes of pathogen resistance. We suggest that differences in cell surface expression level ensure the development of optimal peripheral T cell responses. The inverse relationship of peptide repertoire and expression is evidently a fundamental property of MHC molecules, with ramifications extending beyond immunology and medicine to evolutionary biology and conservation.


    Organizational Affiliation

    Sir William Dunn School of Pathology, University of Oxford, Oxford, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I GLYCOPROTEIN HAPLOTYPE B21
A
329Gallus gallusMutation(s): 0 
Gene Names: BFIV21 (B-FIV, BF2)
Find proteins for Q95601 (Gallus gallus)
Go to UniProtKB:  Q95601
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
BETA-2-MICROGLOBULIN
B
98Gallus gallusMutation(s): 0 
Gene Names: B2M
Find proteins for P21611 (Gallus gallus)
Go to Gene View: B2M
Go to UniProtKB:  P21611
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
14-3-3 PROTEIN THETA
C
10Gallus gallusMutation(s): 0 
Gene Names: YWHAQ
Find proteins for Q5ZMD1 (Gallus gallus)
Go to Gene View: YWHAQ
Go to UniProtKB:  Q5ZMD1
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.251 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 60.570α = 90.00
b = 68.980β = 90.00
c = 94.770γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
XDSdata reduction
BUSTERrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-04-11
    Type: Initial release
  • Version 1.1: 2015-05-06
    Type: Database references
  • Version 1.2: 2019-02-27
    Type: Data collection, Database references, Other