2BUG

Solution structure of the TPR domain from Protein phosphatase 5 in complex with Hsp90 derived peptide


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 19 
  • Selection Criteria: LOWEST RESTRAINT ENERGY 

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This is version 1.3 of the entry. See complete history


Literature

Conformational Diversity in the Tpr Domain-Mediated Interaction of Protein Phosphatase 5 with Hsp90.

Cliff, M.J.Harris, R.Barford, D.Ladbury, J.E.Williams, M.A.

(2006) Structure 14: 415

  • DOI: 10.1016/j.str.2005.12.009
  • Primary Citation of Related Structures:  
    2BUG

  • PubMed Abstract: 
  • Protein phosphatase 5 (Ppp5) is one of several proteins that bind to the Hsp90 chaperone via a tetratricopeptide repeat (TPR) domain. We report the solution structure of a complex of the TPR domain of Ppp5 with the C-terminal pentapeptide of Hsp90. T ...

    Protein phosphatase 5 (Ppp5) is one of several proteins that bind to the Hsp90 chaperone via a tetratricopeptide repeat (TPR) domain. We report the solution structure of a complex of the TPR domain of Ppp5 with the C-terminal pentapeptide of Hsp90. This structure has the "two-carboxylate clamp" mechanism of peptide binding first seen in the Hop-TPR domain complexes with Hsp90 and Hsp70 peptides. However, NMR data reveal that the Ppp5 clamp is highly dynamic, and that there are multiple modes of peptide binding and mobility throughout the complex. Although this interaction is of very high affinity, relatively few persistent contacts are found between the peptide and the Ppp5-TPR domain, thus explaining its promiscuity in binding both Hsp70 and Hsp90 in vivo. We consider the possible implications of this dynamic structure for the mechanism of relief of autoinhibition in Ppp5 and for the mechanisms of TPR-mediated recognition of Hsp90 by other proteins.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University College London, Darwin Building, Gower Street, London WC1E 6BT, United Kingdom.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
SERINE/THREONINE PROTEIN PHOSPHATASE 5A140Homo sapiensMutation(s): 1 
Gene Names: PPP5CPPP5
EC: 3.1.3.16
Find proteins for P53041 (Homo sapiens)
Explore P53041 
Go to UniProtKB:  P53041
NIH Common Fund Data Resources
PHAROS  P53041
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
HSP90B6Homo sapiensMutation(s): 0 
Gene Names: HSP90AA1HSP90AHSPC1HSPCA
Find proteins for P07900 (Homo sapiens)
Explore P07900 
Go to UniProtKB:  P07900
NIH Common Fund Data Resources
PHAROS  P07900
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 19 
  • Selection Criteria: LOWEST RESTRAINT ENERGY 
  • OLDERADO: 2BUG Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-03-16
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2020-01-15
    Changes: Derived calculations, Other