1EGS

NMR STRUCTURE OF GROES MOBILE LOOP RESIDUES 19-27 IN THE SYNTHETIC PEPTIDE (RESIDUES 13-32) BOUND TO GROEL, 20 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 

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This is version 1.2 of the entry. See complete history


Literature

Interplay of structure and disorder in cochaperonin mobile loops.

Landry, S.J.Taher, A.Georgopoulos, C.van der Vies, S.M.

(1996) Proc Natl Acad Sci U S A 93: 11622-11627

  • DOI: 10.1073/pnas.93.21.11622
  • Primary Citation of Related Structures:  
    1EGS

  • PubMed Abstract: 
  • Protein-protein interactions typically are characterized by highly specific interfaces that mediate binding with precisely tuned affinities. Binding of the Escherichia coli cochaperonin GroES to chaperonin GroEL is mediated, at least in part, by a mobile polypeptide loop in GroES that becomes immobilized in the GroEL/GroES/nucleotide complex ...

    Protein-protein interactions typically are characterized by highly specific interfaces that mediate binding with precisely tuned affinities. Binding of the Escherichia coli cochaperonin GroES to chaperonin GroEL is mediated, at least in part, by a mobile polypeptide loop in GroES that becomes immobilized in the GroEL/GroES/nucleotide complex. The bacteriophage T4 cochaperonin Gp31 possesses a similar highly flexible polypeptide loop in a region of the protein that shows low, but significant, amino acid similarity with GroES and other cochaperonins. When bound to GroEL, a synthetic peptide representing the mobile loop of either GroES or Gp31 adopts a characteristic bulged hairpin conformation as determined by transferred nuclear Overhauser effects in NMR spectra. Thermodynamic considerations suggest that flexible disorder in the cochaperonin mobile loops moderates their affinity for GroEL to facilitate cycles of chaperonin-mediated protein folding.


    Related Citations: 
    • Characterization of a Functionally Important Mobile Domain of Groes
      Landry, S.J., Zeilstra-Ryalls, J., Fayet, O., Georgopoulos, C., Gierasch, L.M.
      (1993) Nature 364: 255

    Organizational Affiliation

    Department of Biochemistry, Tulane University School of Medicine, New Orleans, LA 70112-2699, USA.



Macromolecules
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GROESA11Escherichia coliMutation(s): 0 
UniProt
Find proteins for P0A6F9 (Escherichia coli (strain K12))
Explore P0A6F9 
Go to UniProtKB:  P0A6F9
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 
  • OLDERADO: 1EGS Olderado

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 1997-06-30 
  • Released Date: 1997-09-17 
  • Deposition Author(s): Landry, S.J.

Revision History  (Full details and data files)

  • Version 1.0: 1997-09-17
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance