1A64

ENGINEERING A MISFOLDED FORM OF RAT CD2

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.231 
  • R-Value Observed: 0.231 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Engineering an intertwined form of CD2 for stability and assembly.

Murray, A.J., Head, J.G., Barker, J.J., Brady, R.L.

(1998) Nat Struct Biol 5: 778-782

  • DOI: 10.1038/1816
  • Primary Citation of Related Structures:  
    1A64, 1A6P, 1A7B

  • PubMed Abstract: 

    • The amino-terminal domain of CD2 has the remarkable ability to fold in two ways: either as a monomer or as an intertwined, metastable dimer. Here we show that it is possible to differentially stabilize either fold by engineering the CD2 sequence, mimicking random mutagenesis events that could occur during molecular evolution ...

    The amino-terminal domain of CD2 has the remarkable ability to fold in two ways: either as a monomer or as an intertwined, metastable dimer. Here we show that it is possible to differentially stabilize either fold by engineering the CD2 sequence, mimicking random mutagenesis events that could occur during molecular evolution. Crystal structures of a hinge-deletion mutant, which is stable as an intertwined dimer, reveal domain rotations that enable the protein to further assemble to a tetramer. These results demonstrate that a variety of folds can be adopted by a single polypeptide sequence, and provide guidance for the design of proteins capable of further assembly.

    Organizational Affiliation: 

    Department of Biochemistry and Centre for Molecular Recognition, University of Bristol, University Walk, UK.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CD2A, B97Rattus norvegicusMutation(s): 0 
Gene Names: Cd2
UniProt
Find proteins for P08921 (Rattus norvegicus)
Explore P08921 
Go to UniProtKB:  P08921
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP08921
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.231 
  • R-Value Observed: 0.231 
  • Space Group: P 43
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.72α = 90
b = 40.72β = 90
c = 105.84γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-05-27
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance