1ELR

Crystal structure of the TPR2A domain of HOP in complex with the HSP90 peptide MEEVD


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.3 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:  

  • 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 ...

    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

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TPR2A-DOMAIN OF HOP
A
131Homo sapiensGene Names: STIP1
Find proteins for P31948 (Homo sapiens)
Go to Gene View: STIP1
Go to UniProtKB:  P31948
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
HSP90-PEPTIDE MEEVD
B
6Homo sapiens
Find proteins for Q9H2A1 (Homo sapiens)
Go to UniProtKB:  Q9H2A1
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NI
Query on NI

Download SDF File 
Download CCD File 
A
NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
ACE
Query on ACE
B
NON-POLYMERC2 H4 O

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.181 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 73.280α = 90.00
b = 48.270β = 91.30
c = 38.060γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
MLPHAREphasing
MAR345data collection
XDSdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-04-26
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-04
    Type: Refinement description