1CD1

CD1(MOUSE) ANTIGEN PRESENTING MOLECULE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.67 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.192 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of mouse CD1: An MHC-like fold with a large hydrophobic binding groove.

Zeng, Z.Castano, A.R.Segelke, B.W.Stura, E.A.Peterson, P.A.Wilson, I.A.

(1997) Science 277: 339-345


  • PubMed Abstract: 
  • CD1 represents a third lineage of antigen-presenting molecules that are distantly related to major histocompatibility complex (MHC) molecules in the immune system. The crystal structure of mouse CD1d1, corresponding to human CD1d, at 2.8 resolution s ...

    CD1 represents a third lineage of antigen-presenting molecules that are distantly related to major histocompatibility complex (MHC) molecules in the immune system. The crystal structure of mouse CD1d1, corresponding to human CD1d, at 2.8 resolution shows that CD1 adopts an MHC fold that is more closely related to that of MHC class I than to that of MHC class II. The binding groove, although significantly narrower, is substantially larger because of increased depth and it has only two major pockets that are almost completely hydrophobic. The extreme hydrophobicity and shape of the binding site are consistent with observations that human CD1b and CD1c can present mycobacterial cell wall antigens, such as mycolic acid and lipoarabinomannans. However, mouse CD1d1 can present very hydrophobic peptides, but must do so in a very different way from MHC class Ia and class II molecules.


    Organizational Affiliation

    Department of Molecular Biology and the Skaggs Institute for Chemical Biology at the Scripps Research Institute, La Jolla, CA 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CD1
A, C
315Mus musculusGene Names: Cd1d1 (Cd1.1)
Find proteins for P11609 (Mus musculus)
Go to UniProtKB:  P11609
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CD1
B, D
99Mus musculusGene Names: B2m
Find proteins for P01887 (Mus musculus)
Go to UniProtKB:  P01887
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.67 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.192 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 59.340α = 90.00
b = 76.200β = 102.29
c = 103.400γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORmodel building
XENGENdata scaling
XENGENdata collection
X-PLORphasing
XENGENdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-10-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance