1GRL

THE CRYSTAL STRUCTURE OF THE BACTERIAL CHAPERONIN GROEL AT 2.8 ANGSTROMS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.368 
  • R-Value Work: 0.326 
  • R-Value Observed: 0.326 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The crystal structure of the bacterial chaperonin GroEL at 2.8 A.

Braig, K.Otwinowski, Z.Hegde, R.Boisvert, D.C.Joachimiak, A.Horwich, A.L.Sigler, P.B.

(1994) Nature 371: 578-586

  • DOI: 10.1038/371578a0
  • Primary Citation of Related Structures:  
    1GRL

  • PubMed Abstract: 
  • The crystal structure of Escherichia coli GroEL shows a porous cylinder of 14 subunits made of two nearly 7-fold rotationally symmetrical rings stacked back-to-back with dyad symmetry. The subunits consist of three domains: a large equatorial domain that forms the foundation of the assembly at its waist and holds the rings together; a large loosely structured apical domain that forms the ends of the cylinder; and a small slender intermediate domain that connects the two, creating side windows ...

    The crystal structure of Escherichia coli GroEL shows a porous cylinder of 14 subunits made of two nearly 7-fold rotationally symmetrical rings stacked back-to-back with dyad symmetry. The subunits consist of three domains: a large equatorial domain that forms the foundation of the assembly at its waist and holds the rings together; a large loosely structured apical domain that forms the ends of the cylinder; and a small slender intermediate domain that connects the two, creating side windows. The three-dimensional structure places most of the mutationally defined functional sites on the channel walls and its outward invaginations, and at the ends of the cylinder.


    Related Citations: 
    • Residues in Chaperonin Groel Required for Polypeptide Binding and Release
      Fenton, W.A., Kashi, Y., Furtak, K., Horwich, A.L.
      (1994) Nature 371: 614

    Organizational Affiliation

    Department of Genetics, Yale University School of Medicine, Boyer Center, New Haven, Connecticut 06510.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GROEL (HSP60 CLASS)A, B, C, D, E, F, G548Escherichia coliMutation(s): 0 
Find proteins for P0A6F5 (Escherichia coli (strain K12))
Explore P0A6F5 
Go to UniProtKB:  P0A6F5
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.368 
  • R-Value Work: 0.326 
  • R-Value Observed: 0.326 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 178α = 90
b = 203β = 90
c = 278γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1995-10-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance