1AQD

HLA-DR1 (DRA, DRB1 0101) HUMAN CLASS II HISTOCOMPATIBILITY PROTEIN (EXTRACELLULAR DOMAIN) COMPLEXED WITH ENDOGENOUS PEPTIDE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.216 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The class II MHC protein HLA-DR1 in complex with an endogenous peptide: implications for the structural basis of the specificity of peptide binding.

Murthy, V.L.Stern, L.J.

(1997) Structure 5: 1385-1396


  • PubMed Abstract: 
  • Class II major histocompatibility complex (MHC) proteins are cell surface glycoproteins that bind peptides and present them to T cells as part of the mechanism for detecting and responding to foreign material in the body. The peptide-binding activity ...

    Class II major histocompatibility complex (MHC) proteins are cell surface glycoproteins that bind peptides and present them to T cells as part of the mechanism for detecting and responding to foreign material in the body. The peptide-binding activity exhibits allele-specific preferences for particular sidechains at some positions, although the structural basis of these preferences is not understood in detail. We have determined the 2.45 A crystal structure of the human class II MHC protein HLA-DR1 in complex with the tight binding endogenous peptide A2 (103-117) in order to discover peptide-MHC interactions that are important in determining the binding motif and to investigate conformational constraints on the bound peptide.


    Related Citations: 
    • Three Dimensional Structure of a Human Class II Mhc Protein Hla-Dr1 Bound to an Endogenous Peptide
      Murthy, V.L.
      (1996) Thesis --: --
    • Three-Dimensional Structure of the Human Class II Histocompatibility Antigen Hla-Dr1
      Brown, J.H.,Jardetzky, T.S.,Gorga, J.C.,Stern, L.J.,Urban, R.G.,Strominger, J.L.,Wiley, D.C.
      (1993) Nature 364: 33
    • Crystal Structure of the Human Class II Mhc Protein Hla-Dr1 Complexed with an Influenza Virus Peptide
      Stern, L.J.,Brown, J.H.,Jardetzky, T.S.,Gorga, J.C.,Urban, R.G.,Strominger, J.L.,Wiley, D.C.
      (1994) Nature 368: 215


    Organizational Affiliation

    Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HLA-DR1 CLASS II HISTOCOMPATIBILITY PROTEIN
A, D, G, J
192Homo sapiensGene Names: HLA-DRA (HLA-DRA1)
Find proteins for P01903 (Homo sapiens)
Go to Gene View: HLA-DRA
Go to UniProtKB:  P01903
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
HLA-DR1 CLASS II HISTOCOMPATIBILITY PROTEIN
B, E, H, K
198Homo sapiensGene Names: HLA-DRB1
Find proteins for P04229 (Homo sapiens)
Go to Gene View: HLA-DRB1
Go to UniProtKB:  P04229
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
HLA-A2
C, F, I, L
15Homo sapiensGene Names: HLA-A (HLAA)
Find proteins for P01892 (Homo sapiens)
Go to Gene View: HLA-A
Go to UniProtKB:  P01892
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.216 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 134.514α = 90.00
b = 134.320β = 104.82
c = 131.232γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
X-PLORphasing
X-PLORmodel building
DENZOdata reduction
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-01-28
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance