1HNG

CRYSTAL STRUCTURE AT 2.8 ANGSTROMS RESOLUTION OF A SOLUBLE FORM OF THE CELL ADHESION MOLECULE CD2

• PDB DOI: https://doi.org/10.2210/pdb1HNG/pdb

• Classification: T LYMPHOCYTE ADHESION GLYCOPROTEIN
• Organism(s): Rattus rattus
• Mutation(s): No 


• Deposited: 1994-08-10 Released: 1995-02-07 
• Deposition Author(s): Jones, E.Y., Davis, S.J., Williams, A.F., Harlos, K., Stuart, D.I.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Work: 0.215 
• R-Value Observed: 0.215 

Literature

Crystal structure at 2.8 A resolution of a soluble form of the cell adhesion molecule CD2.

Jones, E.Y., Davis, S.J., Williams, A.F., Harlos, K., Stuart, D.I.

(1992) Nature 360: 232-239

• PubMed: 1279440 
• DOI: https://doi.org/10.1038/360232a0
• Primary Citation of Related Structures:  
  1HNG


• PubMed Abstract: 
  

  The crystal structure of a soluble form of the T lymphocyte antigen CD2 provides the first complete view of the extracellular region of a cell adhesion molecule. The topology of the molecule, which comprises two immunoglobulin-like domains, is the same as that of the first two domains of CD4 but the relative domain orientation is altered by a fairly flexible linker region. The putative ligand-binding beta-sheet forms a flat surface towards the top of the molecule. Crystal contacts between these surfaces suggest a plausible model for the adhesive interaction.

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Organizational Affiliation: 

Laboratory of Molecular Biophysics, Oxford, UK.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 40.28 kDa 
• Atom Count: 2,796 
• Modelled Residue Count: 350 
• Deposited Residue Count: 352 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CD2	A, B	176	Rattus rattus	Mutation(s): 0
UniProt
Find proteins for P08921 (Rattus norvegicus) Explore P08921  Go to UniProtKB:  P08921

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Work: 0.215 
• R-Value Observed: 0.215 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 111.4	α = 90
b = 111.4	β = 90
c = 86.9	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1995-02-07 
Deposition Author(s): Jones, E.Y., Davis, S.J., Williams, A.F., Harlos, K., Stuart, D.I.

Revision History  

• Version 1.0: 1995-02-07
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-06-05
  Changes: Data collection, Database references, Other