4WV7

HEAT SHOCK PROTEIN 70 SUBSTRATE BINDING DOMAIN WITH COVALENTLY LINKED NOVOLACTONE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.42 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The novolactone natural product disrupts the allosteric regulation of hsp70.

Hassan, A.Q.Kirby, C.A.Zhou, W.Schuhmann, T.Kityk, R.Kipp, D.R.Baird, J.Chen, J.Chen, Y.Chung, F.Hoepfner, D.Movva, N.R.Pagliarini, R.Petersen, F.Quinn, C.Quinn, D.Riedl, R.Schmitt, E.K.Schitter, A.Stams, T.Studer, C.Fortin, P.D.Mayer, M.P.Sadlish, H.

(2015) Chem.Biol. 22: 87-97

  • DOI: 10.1016/j.chembiol.2014.11.007
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The highly conserved 70 kDa heat shock proteins (Hsp70) play an integral role in proteostasis such that dysregulation has been implicated in numerous diseases. Elucidating the precise role of Hsp70 family members in the cellular context, however, has ...

    The highly conserved 70 kDa heat shock proteins (Hsp70) play an integral role in proteostasis such that dysregulation has been implicated in numerous diseases. Elucidating the precise role of Hsp70 family members in the cellular context, however, has been hampered by the redundancy and intricate regulation of the chaperone network, and relatively few selective and potent tools. We have characterized a natural product, novolactone, that targets cytosolic and ER-localized isoforms of Hsp70 through a highly conserved covalent interaction at the interface between the substrate-binding and ATPase domains. Biochemical and structural analyses indicate that novolactone disrupts interdomain communication by allosterically inducing a conformational change in the Hsp70 protein to block ATP-induced substrate release and inhibit refolding activities. Thus, novolactone is a valuable tool for exploring the requirements of Hsp70 chaperones in diverse cellular contexts.


    Organizational Affiliation

    Novartis Institutes for BioMedical Research, Novartis Campus, 4056 Basel, Switzerland. Electronic address: heather.sadlish@novartis.com.,Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, MA 02139, USA.,Novartis Institutes for BioMedical Research, Novartis Campus, 4056 Basel, Switzerland.,Zentrum für Molekulare Biologie der Universität Heidelberg (ZMBH), DKFZ-ZMBH Alliance, Im Neuenheimer Feld 282, 69120 Heidelberg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Heat shock 70 kDa protein 1A/1B
A, B
151Homo sapiensMutation(s): 0 
Gene Names: HSPA1B (HSP72)
Find proteins for P0DMV9 (Homo sapiens)
Go to Gene View: HSPA1B
Go to UniProtKB:  P0DMV9
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
3UM
Query on 3UM

Download SDF File 
Download CCD File 
A, B
(5beta,6alpha,8alpha,14alpha)-13-ethenyl-5,6-dihydroxy-14-methylpodocarp-12-en-15-oic acid
C20 H30 O4
OKUNNUNVWSVFGB-GWXXFZPSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.42 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.200 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 67.536α = 90.00
b = 87.779β = 90.00
c = 52.453γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
BUSTERrefinement
SCALAdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-01-14
    Type: Initial release
  • Version 1.1: 2015-02-04
    Type: Database references