1DKD

CRYSTAL STRUCTURE OF A GROEL (APICAL DOMAIN) AND A DODECAMERIC PEPTIDE COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The crystal structure of a GroEL/peptide complex: plasticity as a basis for substrate diversity.

Chen, L.Sigler, P.B.

(1999) Cell 99: 757-768

  • Primary Citation of Related Structures:  1DK7

  • PubMed Abstract: 
  • The chaperonin GroEL is a double toriodal assembly that with its cochaperonin GroES facilitates protein folding with an ATP-dependent mechanism. Nonnative conformations of diverse protein substrates bind to the apical domains surrounding the opening ...

    The chaperonin GroEL is a double toriodal assembly that with its cochaperonin GroES facilitates protein folding with an ATP-dependent mechanism. Nonnative conformations of diverse protein substrates bind to the apical domains surrounding the opening of the double toroid's central cavity. Using phage display, we have selected peptides with high affinity for the isolated apical domain. We have determined the crystal structures of the complexes formed by the most strongly bound peptide with the isolated apical domain, and with GroEL. The peptide interacts with the groove between paired alpha helices in a manner similar to that of the GroES mobile loop. Our structural analysis, combined with other results, suggests that various modes of molecular plasticity are responsible for tight promiscuous binding of nonnative substrates and their release into the shielded cis assembly.


    Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06511, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GROEL
A, B, C, D
146Escherichia 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
12-MER PEPTIDE
E, F, G, H
12N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.215 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 42.042α = 90.00
b = 134.668β = 94.38
c = 59.734γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
CNSrefinement
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1999-12-07 
  • Released Date: 2000-01-12 
  • Deposition Author(s): Chen, L., Sigler, P.B.

Revision History 

  • Version 1.0: 2000-01-12
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance