1GR5

Solution Structure of apo GroEL by Cryo-Electron microscopy


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.9 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

ATP-Bound States of Groel Captured by Cryo-Electron Microscopy.

Ranson, N.A.Farr, G.W.Roseman, A.M.Gowen, B.Fenton, W.A.Horwich, A.L.Saibil, H.R.

(2001) Cell 107: 869

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The chaperonin GroEL drives its protein-folding cycle by cooperatively binding ATP to one of its two rings, priming that ring to become folding-active upon GroES binding, while simultaneously discharging the previous folding chamber from the opposite ...

    The chaperonin GroEL drives its protein-folding cycle by cooperatively binding ATP to one of its two rings, priming that ring to become folding-active upon GroES binding, while simultaneously discharging the previous folding chamber from the opposite ring. The GroEL-ATP structure, determined by cryo-EM and atomic structure fitting, shows that the intermediate domains rotate downward, switching their intersubunit salt bridge contacts from substrate binding to ATP binding domains. These observations, together with the effects of ATP binding to a GroEL-GroES-ADP complex, suggest structural models for the ATP-induced reduction in affinity for polypeptide and for cooperativity. The model for cooperativity, based on switching of intersubunit salt bridge interactions around the GroEL ring, may provide general insight into cooperativity in other ring complexes and molecular machines.


    Related Citations: 
    • 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
    • Crystal Structure of the Asymmetric Chaperonin Complex Groel/Groes/(Adp)
      Xu, Z.,Horwich, A.L.,Sigler, P.B.
      (1997) Nature 388: 741
    • The 2.4 Angstrom Crystal Structure of the Bacterial Chaperonin Groel Complexed with ATP-Gamma-S
      Boisvert, D.C.,Wang, J.,Otwinowski, Z.,Horwich, A.L.,Sigler, P.B.
      (1996) Nat.Struct.Mol.Biol. 3: 170


    Organizational Affiliation

    Department of Crystallography, Birkbeck College London, Malet Street, London WC1E 7HX, United Kingdom. n.ranson@bbk.ac.uk




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
60 KDA CHAPERONIN
A, B, C, D, E, F, G, H, I, J, K, L, M, N
547Escherichia coli (strain K12)Mutation(s): 2 
Gene Names: groL (groEL, mopA)
Find proteins for P0A6F5 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A6F5
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.9 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-01-28
    Type: Initial release
  • Version 1.1: 2012-01-11
    Type: Database references, Derived calculations, Other, Structure summary, Version format compliance
  • Version 1.2: 2013-10-23
    Type: Derived calculations
  • Version 1.3: 2015-08-19
    Type: Other
  • Version 1.4: 2017-08-30
    Type: Data collection