2NWC

A 3.02 angstrom crystal structure of wild-type apo GroEL in a monoclinic space group

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.02 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.228 

wwPDB Validation   3D Report Full Report


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


Literature

Purification, crystallization and structure determination of native GroEL from Escherichia coli lacking bound potassium ions

Kiser, P.D., Lodowski, D.T., Palczewski, K.

(2007) Acta Crystallogr Sect F Struct Biol Cryst Commun 63: 457-461

  • DOI: 10.1107/S1744309107020295
  • Primary Citation of Related Structures:  
    2NWC

  • PubMed Abstract: 

    • GroEL is a member of the ATP-dependent chaperonin family that promotes the proper folding of many cytosolic bacterial proteins. The structures of GroEL in a variety of different states have been determined using X-ray crystallography and cryo-electron microscopy ...

    GroEL is a member of the ATP-dependent chaperonin family that promotes the proper folding of many cytosolic bacterial proteins. The structures of GroEL in a variety of different states have been determined using X-ray crystallography and cryo-electron microscopy. In this study, a 3.02 A crystal structure of the native GroEL complex from Escherichia coli is presented. The complex was purified and crystallized in the absence of potassium ions, which allowed evaluation of the structural changes that may occur in response to cognate potassium-ion binding by comparison to the previously determined wild-type GroEL structure (PDB code 1xck), in which potassium ions were observed in all 14 subunits. In general, the structure is similar to the previously determined wild-type GroEL crystal structure with some differences in regard to temperature-factor distribution.

    Organizational Affiliation: 

    Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio, USA.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
60 kDa chaperonin
A, B, C, D, E, F, G, H, I, J, K, L, M, N
A, B, C, D, E, F, G, H, I, J, K, L, M, N
547Escherichia coliMutation(s): 0 
Gene Names: groL, groEL
EC: 3.6.4.9
UniProt
Find proteins for P0A6F5 (Escherichia coli (strain K12))
Explore P0A6F5 
Go to UniProtKB:  P0A6F5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0A6F5
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.02 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.228 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 136.423α = 90
b = 262.254β = 99.83
c = 147.074γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-05-22
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance