6GFA

Structure of Nucleotide binding domain of HSP110, ATP and Mg2+ complexed


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Selecting the first chemical molecule inhibitor of HSP110 for colorectal cancer therapy.

Gozzi, G.J.Gonzalez, D.Boudesco, C.Dias, A.M.M.Gotthard, G.Uyanik, B.Dondaine, L.Marcion, G.Hermetet, F.Denis, C.Hardy, L.Suzanne, P.Douhard, R.Jego, G.Dubrez, L.Demidov, O.N.Neiers, F.Briand, L.Sopkova-de Oliveira Santos, J.Voisin-Chiret, A.S.Garrido, C.

(2019) Cell Death Differ. --: --

  • DOI: 10.1038/s41418-019-0343-4

  • PubMed Abstract: 
  • Pro-survival stress-inducible chaperone HSP110 is the only HSP for which a mutation has been found in a cancer. Multicenter clinical studies demonstrated a direct association between HSP110 inactivating mutation presence and excellent prognosis in co ...

    Pro-survival stress-inducible chaperone HSP110 is the only HSP for which a mutation has been found in a cancer. Multicenter clinical studies demonstrated a direct association between HSP110 inactivating mutation presence and excellent prognosis in colorectal cancer patients. Here, we have combined crystallographic studies on human HSP110 and in silico modeling to identify HSP110 inhibitors that could be used in colorectal cancer therapy. Two molecules (foldamers 33 and 52), binding to the same cleft of HSP110 nucleotide-binding domain, were selected from a chemical library (by co-immunoprecipitation, AlphaScreening, Interference-Biolayer, Duo-link). These molecules block HSP110 chaperone anti-aggregation activity and HSP110 association to its client protein STAT3, thereby inhibiting STAT3 phosphorylation and colorectal cancer cell growth. These effects were strongly decreased in HSP110 knockdown cells. Foldamer's 33 ability to inhibit tumor growth was confirmed in two colorectal cancer animal models. Although tumor cell death (apoptosis) was noted after treatment of the animals with foldamer 33, no apparent toxicity was observed, notably in epithelial cells from intestinal crypts. Taken together, we identified the first HSP110 inhibitor, a possible drug-candidate for colorectal cancer patients whose unfavorable outcome is associated to HSP110.


    Organizational Affiliation

    European Synchrotron Radiation Facility, F-38043, Grenoble, France.,Centre des Sciences du Goût et de l'Alimentation, INRA, CNRS, Dijon, France.,INSERM UMR1231, Laboratory of Excellence LipSTIC and label Ligue Nationale contre le Cancer, Dijon, France. cgarrido@u-bourgogne.fr.,University of Burgundy Franche-Comté, Dijon, France. cgarrido@u-bourgogne.fr.,University of Burgundy Franche-Comté, Dijon, France.,INSERM UMR1231, Laboratory of Excellence LipSTIC and label Ligue Nationale contre le Cancer, Dijon, France.,Georges François Leclerc Center (CGFL), Dijon, France. cgarrido@u-bourgogne.fr.,Normandie Université, UNICAEN, EA 4258 CERMN (Centre d'Etudes et de Recherche sur le Médicament de Normandie) - FR CNRS INC3M, Boulevard Becquerel, 14032, Caen, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Heat shock protein 105 kDa
A
381Homo sapiensMutation(s): 0 
Gene Names: HSPH1 (HSP105, HSP110, KIAA0201)
Find proteins for Q92598 (Homo sapiens)
Go to Gene View: HSPH1
Go to UniProtKB:  Q92598
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP

Download SDF File 
Download CCD File 
A
ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.187 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 109.780α = 90.00
b = 109.780β = 90.00
c = 144.220γ = 120.00
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
ARP/wARPmodel building
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-05-08
    Type: Initial release
  • Version 1.1: 2019-07-03
    Type: Data collection, Database references
  • Version 1.2: 2019-10-16
    Type: Data collection