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 exhibits allele-specific preferences for particular sidechains at some positions, although the structural basis of these preferences is not understood in detail ...

    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 PROTEINA, D, G, J192Homo sapiensMutation(s): 0 
Gene Names: DRA*0101DRB1*0101HLA-DRAHLA-DRA1
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Find proteins for P01903 (Homo sapiens)
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PHAROS:  P01903
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
HLA-DR1 CLASS II HISTOCOMPATIBILITY PROTEINB, E, H, K198Homo sapiensMutation(s): 0 
Gene Names: DRA*0101DRB1*0101HLA-DRB1
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Find proteins for P01911 (Homo sapiens)
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PHAROS:  P01911
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
HLA-A2C, F, I, L15Homo sapiensMutation(s): 0 
Gene Names: HLA-AHLAA
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Find proteins for P04439 (Homo sapiens)
Explore P04439 
Go to UniProtKB:  P04439
PHAROS:  P04439
Protein Feature View
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  • 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  (Full details and data files)

  • 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