2YEZ

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.251 
  • R-Value Observed: 0.252 

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:  
    4D0B, 4D0C, 4D0D, 4CVX, 4CVZ, 4CW1, 2YEZ

  • 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

    Department of Pathology, University of Cambridge, Cambridge, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I GLYCOPROTEIN HAPLOTYPE B21A329Gallus gallusMutation(s): 0 
Gene Names: BFIV21B-FIVBF2
Find proteins for Q95601 (Gallus gallus)
Explore Q95601 
Go to UniProtKB:  Q95601
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
BETA-2-MICROGLOBULINB98Gallus gallusMutation(s): 0 
Gene Names: B2M
Find proteins for P21611 (Gallus gallus)
Explore P21611 
Go to UniProtKB:  P21611
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
14-3-3 PROTEIN THETAC10Gallus gallusMutation(s): 0 
Gene Names: YWHAQRCJMB04_2i3
Find proteins for Q5ZMD1 (Gallus gallus)
Explore Q5ZMD1 
Go to UniProtKB:  Q5ZMD1
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.251 
  • R-Value Observed: 0.252 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.57α = 90
b = 68.98β = 90
c = 94.77γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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