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 
  • R-Value Observed: 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

  • DOI: 10.1016/s0969-2126(97)00288-8
  • Primary Citation of Related Structures:  
    1AQD

  • 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 --: --
    • 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
    • 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

    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HLA-DR1 CLASS II HISTOCOMPATIBILITY PROTEINADGJ192Homo sapiensMutation(s): 0 
Gene Names: DRA*0101DRB1*0101HLA-DRAHLA-DRA1
Find proteins for P01903 (Homo sapiens)
Explore P01903 
Go to UniProtKB:  P01903
NIH Common Fund Data Resources
PHAROS  P01903
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
HLA-DR1 CLASS II HISTOCOMPATIBILITY PROTEINBEHK198Homo sapiensMutation(s): 0 
Gene Names: DRA*0101DRB1*0101HLA-DRB1
Find proteins for P01911 (Homo sapiens)
Explore P01911 
Go to UniProtKB:  P01911
NIH Common Fund Data Resources
PHAROS  P01911
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
HLA-A2CFIL15Homo sapiensMutation(s): 0 
Gene Names: HLA-AHLAA
Find proteins for P04439 (Homo sapiens)
Explore P04439 
Go to UniProtKB:  P04439
NIH Common Fund Data Resources
PHAROS  P04439
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.216 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 134.514α = 90
b = 134.32β = 104.82
c = 131.232γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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