2C7D

Fitted coordinates for GroEL-ADP7-GroES Cryo-EM complex (EMD-1181)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 8.7 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Allosteric Signalling of ATP Hydrolysis in Groel-Groes Complexes.

Ranson, N.A.Clare, D.K.Farr, G.W.Houldershaw, D.Horwich, A.L.Saibil, H.R.

(2006) Nat.Struct.Mol.Biol. 13: 147

  • DOI: 10.1038/nsmb1046
  • Primary Citation of Related Structures:  2C7C

  • PubMed Abstract: 
  • The double-ring chaperonin GroEL and its lid-like cochaperonin GroES form asymmetric complexes that, in the ATP-bound state, mediate productive folding in a hydrophilic, GroES-encapsulated chamber, the so-called cis cavity. Upon ATP hydrolysis within ...

    The double-ring chaperonin GroEL and its lid-like cochaperonin GroES form asymmetric complexes that, in the ATP-bound state, mediate productive folding in a hydrophilic, GroES-encapsulated chamber, the so-called cis cavity. Upon ATP hydrolysis within the cis ring, the asymmetric complex becomes able to accept non-native polypeptides and ATP in the open, trans ring. Here we have examined the structural basis for this allosteric switch in activity by cryo-EM and single-particle image processing. ATP hydrolysis does not change the conformation of the cis ring, but its effects are transmitted through an inter-ring contact and cause domain rotations in the mobile trans ring. These rigid-body movements in the trans ring lead to disruption of its intra-ring contacts, expansion of the entire ring and opening of both the nucleotide pocket and the substrate-binding domains, admitting ATP and new substrate protein.


    Organizational Affiliation

    Astbury Centre for Structural Molecular Biology and Institute of Molecular & Cellular Biology, University of Leeds, Leeds, LS2 9JT, 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)Gene Names: groL (groEL, mopA)
Find proteins for P0A6F5 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A6F5
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
10 KDA CHAPERONIN MOLECULE: GROES, PROTEIN CPN10, GROES PROTEIN
O, P, Q, R, S, T, U
97Escherichia coli (strain K12)Gene Names: groS (groES, mopB)
Find proteins for P0A6F9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A6F9
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 8.7 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: 2006-01-25
    Type: Initial release
  • Version 1.1: 2014-01-15
    Type: Derived calculations, Other, Refinement description, Version format compliance
  • Version 1.2: 2017-08-23
    Type: Data collection