1IEA

HISTOCOMPATIBILITY ANTIGEN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.202 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structures of an MHC class II molecule with covalently bound single peptides.

Fremont, D.H.Hendrickson, W.A.Marrack, P.Kappler, J.

(1996) Science 272: 1001-1004

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The high-resolution x-ray crystal structures of the murine major histocompatibility complex (MHC) class II molecule, I-E(k), occupied by either of two antigenic peptides were determined. They reveal the structural basis for the I-E(k) peptide binding ...

    The high-resolution x-ray crystal structures of the murine major histocompatibility complex (MHC) class II molecule, I-E(k), occupied by either of two antigenic peptides were determined. They reveal the structural basis for the I-E(k) peptide binding motif and suggest general principles for additional alleles. A buried cluster of acidic amino acids in the binding groove predicted to be conserved among all murine I-E and human DR MHC class II molecules suggests how pH may influence MHC binding or exchange of peptides. These structures also complement mutational studies on the importance of individual peptide residues to T cell receptor recognition.


    Organizational Affiliation

    Howard Hughes Medical Institute, Department of Biochemistry and Molecular Biophysics, Columbia University, New York, 10032, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MHC CLASS II I-EK
A, C
192Mus musculusGene Names: H2-Ea
Find proteins for P01904 (Mus musculus)
Go to UniProtKB:  P01904
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
MHC CLASS II I-EK
B, D
228Mus musculusGene Names: H2-Eb1
Find proteins for Q31163 (Mus musculus)
Go to UniProtKB:  Q31163
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B, C, D
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.202 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 147.020α = 90.00
b = 57.090β = 91.52
c = 117.010γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
AGROVATAdata reduction
HKLdata collection
SCALAdata scaling
DENZOdata reduction
CCP4data scaling
X-PLORrefinement
HKLdata reduction
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-06-05
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance
  • Version 1.3: 2017-03-22
    Type: Other