1A4H

STRUCTURE OF THE N-TERMINAL DOMAIN OF THE YEAST HSP90 CHAPERONE IN COMPLEX WITH GELDANAMYCIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.206 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Identification and structural characterization of the ATP/ADP-binding site in the Hsp90 molecular chaperone

Prodromou, C.Roe, S.M.O'Brien, R.Ladbury, J.E.Piper, P.W.Pearl, L.H.

(1997) Cell 90: 65-75

  • Primary Citation of Related Structures:  1AM1, 1AMW

  • PubMed Abstract: 
  • Hsp90 molecular chaperones in eukaryotic cells play essential roles in the folding and activation of a range of client proteins involved in cell cycle regulation, steroid hormone responsiveness, and signal transduction. The biochemical mechanism of H ...

    Hsp90 molecular chaperones in eukaryotic cells play essential roles in the folding and activation of a range of client proteins involved in cell cycle regulation, steroid hormone responsiveness, and signal transduction. The biochemical mechanism of Hsp90 is poorly understood, and the involvement of ATP in particular is controversial. Crystal structures of complexes between the N-terminal domain of the yeast Hsp90 chaperone and ADP/ATP unambiguously identify a specific adenine nucleotide binding site homologous to the ATP-binding site of DNA gyrase B. This site is the same as that identified for the antitumor agent geldanamycin, suggesting that geldanamycin acts by blocking the binding of nucleotides to Hsp90 and not the binding of incompletely folded client polypeptides as previously suggested. These results finally resolve the question of the direct involvement of ATP in Hsp90 function.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University College London, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HEAT SHOCK PROTEIN 90
A
230Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: HSP82 (HSP90)
Find proteins for P02829 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P02829
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GDM
Query on GDM

Download SDF File 
Download CCD File 
A
GELDANAMYCIN
C29 H40 N2 O9
QTQAWLPCGQOSGP-KSRBKZBZSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
GDMKd: 1200 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.206 
  • Space Group: P 43 2 2
Unit Cell:
Length (Å)Angle (°)
a = 74.120α = 90.00
b = 74.120β = 90.00
c = 111.350γ = 90.00
Software Package:
Software NamePurpose
CCP4data scaling
X-PLORphasing
X-PLORrefinement
X-PLORmodel building
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-08-05
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2012-02-29
    Type: Non-polymer description