6GFA

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.189 

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Ligand Structure Quality Assessment 


This is version 1.3 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.

(2020) Cell Death Differ 27: 117-129

  • DOI: 10.1038/s41418-019-0343-4
  • Primary Citation of Related Structures:  
    6GFA

  • 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 colorectal cancer patients ...

    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

    Georges François Leclerc Center (CGFL), Dijon, France. cgarrido@u-bourgogne.fr.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Heat shock protein 105 kDaA381Homo sapiensMutation(s): 0 
Gene Names: HSPH1HSP105HSP110KIAA0201
UniProt & NIH Common Fund Data Resources
Find proteins for Q92598 (Homo sapiens)
Explore Q92598 
Go to UniProtKB:  Q92598
PHAROS:  Q92598
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP (Subject of Investigation/LOI)
Query on ATP

Download Ideal Coordinates CCD File 
D [auth A]ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
B [auth A], C [auth A]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.189 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 109.78α = 90
b = 109.78β = 90
c = 144.22γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
ARP/wARPmodel building
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-05-08
    Type: Initial release
  • Version 1.1: 2019-07-03
    Changes: Data collection, Database references
  • Version 1.2: 2019-10-16
    Changes: Data collection
  • Version 1.3: 2019-12-25
    Changes: Database references