1HLA

STRUCTURE OF THE HUMAN CLASS I HISTOCOMPATIBILITY ANTIGEN, HLA-A2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the human class I histocompatibility antigen, HLA-A2.

Bjorkman, P.J.Saper, M.A.Samraoui, B.Bennett, W.S.Strominger, J.L.Wiley, D.C.

(1987) Nature 329: 506-512

  • DOI: 10.1038/329506a0

  • PubMed Abstract: 
  • The class I histocompatibility antigen from human cell membranes has two structural motifs: the membrane-proximal end of the glycoprotein contains two domains with immunoglobulin-folds that are paired in a novel manner, and the region distal from the ...

    The class I histocompatibility antigen from human cell membranes has two structural motifs: the membrane-proximal end of the glycoprotein contains two domains with immunoglobulin-folds that are paired in a novel manner, and the region distal from the membrane is a platform of eight antiparallel beta-strands topped by alpha-helices. A large groove between the alpha-helices provides a binding site for processed foreign antigens. An unknown 'antigen' is found in this site in crystals of purified HLA-A2.


    Related Citations: 
    • The Foreign Antigen Binding Site and T Cell Recognition Regions of Class I Histocompatibility Antigens
      Bjorkman, P.J.,Saper, M.A.,Samraoui, B.,Bennett, W.S.,Strominger, J.L.,Wiley, D.C.
      (1987) Nature 329: 512
    • Crystallization and X-Ray Diffraction Studies on the Histocompatibility Antigens Hla-A2 and Hla-A28 from Human Cell Membranes
      Bjorkman, P.J.,Strominger, J.L.,Wiley, D.C.
      (1985) J.Mol.Biol. 186: 205


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Harvard University, Cambridge, Massachusetts 02138.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-A2) (ALPHA CHAIN)
A
270Homo sapiensMutation(s): 0 
Gene Names: HLA-A (HLAA)
Find proteins for P01892 (Homo sapiens)
Go to Gene View: HLA-A
Go to UniProtKB:  P01892
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
BETA 2-MICROGLOBULIN
M
97Homo sapiensMutation(s): 0 
Gene Names: B2M
Find proteins for P61769 (Homo sapiens)
Go to Gene View: B2M
Go to UniProtKB:  P61769
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 60.200α = 90.00
b = 80.400β = 90.00
c = 112.200γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1988-01-16
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance