1ELW

Crystal structure of the TPR1 domain of HOP in complex with a HSC70 peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.180 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of TPR domain-peptide complexes: critical elements in the assembly of the Hsp70-Hsp90 multichaperone machine

Scheufler, C.Brinker, A.Bourenkov, G.Pegoraro, S.Moroder, L.Bartunik, H.Hartl, F.U.Moarefi, I.

(2000) Cell 101: 199-210

  • DOI: 10.1016/S0092-8674(00)80830-2
  • Primary Citation of Related Structures:  
    1ELW, 1ELR

  • PubMed Abstract: 
  • The adaptor protein Hop mediates the association of the molecular chaperones Hsp70 and Hsp90. The TPR1 domain of Hop specifically recognizes the C-terminal heptapeptide of Hsp70 while the TPR2A domain binds the C-terminal pentapeptide of Hsp90. Both sequences end with the motif EEVD ...

    The adaptor protein Hop mediates the association of the molecular chaperones Hsp70 and Hsp90. The TPR1 domain of Hop specifically recognizes the C-terminal heptapeptide of Hsp70 while the TPR2A domain binds the C-terminal pentapeptide of Hsp90. Both sequences end with the motif EEVD. The crystal structures of the TPR-peptide complexes show the peptides in an extended conformation, spanning a groove in the TPR domains. Peptide binding is mediated by electrostatic interactions with the EEVD motif, with the C-terminal aspartate acting as a two-carboxylate anchor, and by hydrophobic interactions with residues upstream of EEVD. The hydrophobic contacts with the peptide are critical for specificity. These results explain how TPR domains participate in the ordered assembly of Hsp70-Hsp90 multichaperone complexes.


    Organizational Affiliation

    Max-Planck Institute for Biochemistry, Martinsried, Germany.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TPR1-DOMAIN OF HOPA, B118Homo sapiensMutation(s): 0 
Gene Names: STIP1
UniProt & NIH Common Fund Data Resources
Find proteins for P31948 (Homo sapiens)
Explore P31948 
Go to UniProtKB:  P31948
PHAROS:  P31948
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
HSC70-PEPTIDEC, D8N/AMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.180 
  • Space Group: P 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.47α = 90
b = 75.47β = 90
c = 42.89γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
SCALEPACKdata scaling
AMoREphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-04-26
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance