4D0B

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.275 
  • R-Value Observed: 0.277 

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.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
  • Structures With Same Primary Citation

  • 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MHC CLASS I ANTIGEN
A
329Gallus gallusMutation(s): 0 
Gene Names: BF2
Find proteins for E9LUH6 (Gallus gallus)
Go to UniProtKB:  E9LUH6

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
BETA-2-MICROGLOBULIN
B
98Gallus gallusMutation(s): 0 
Gene Names: B2M
Find proteins for P21611 (Gallus gallus)
Go to UniProtKB:  P21611
  • Find similar proteins by: Sequence   |   Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
PEPTIDE
C
10Gallus gallusMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.275 
  • R-Value Observed: 0.277 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.921α = 90
b = 69.211β = 90
c = 95.44γ = 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: 2015-05-06
    Type: Initial release
  • Version 1.1: 2019-02-27
    Changes: Data collection, Database references, Other
  • Version 1.2: 2019-03-27
    Changes: Data collection, Database references