8A46

Crystal structure of the human Kelch domain of Keap1 in complex with compound S217879

• PDB DOI: https://doi.org/10.2210/pdb8A46/pdb

• Classification: TRANSCRIPTION
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-06-10 Released: 2022-07-13 
• Deposition Author(s): Weber, C., Vuillard, L., Delerive, P., Miallau, L.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.32 Å
• R-Value Free: 0.207 
• R-Value Work: 0.198 
• R-Value Observed: 0.199 

Literature

Selective disruption of NRF2-KEAP1 interaction leads to NASH resolution and reduction of liver fibrosis in mice.

Seedorf, K., Weber, C., Vinson, C., Berger, S., Vuillard, L.M., Kiss, A., Creusot, S., Broux, O., Geant, A., Ilic, C., Lemaitre, K., Richard, J., Hammoutene, A., Mahieux, J., Martiny, V., Durand, D., Melchiore, F., Nyerges, M., Paradis, V., Provost, N., Duvivier, V., Delerive, P.

(2023) JHEP Rep 5: 100651-100651

• PubMed: 36866391 
• DOI: https://doi.org/10.1016/j.jhepr.2022.100651
• Primary Citation of Related Structures:  
  8A46


• PubMed Abstract: 
  

  Oxidative stress is recognized as a major driver of non-alcoholic steatohepatitis (NASH) progression. The transcription factor NRF2 and its negative regulator KEAP1 are master regulators of redox, metabolic and protein homeostasis, as well as detoxification, and thus appear to be attractive targets for the treatment of NASH.

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Organizational Affiliation: 

Cardiovascular and Metabolic Diseases Research, Institut de Recherches Servier, Suresnes, France.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 34.37 kDa 
• Atom Count: 2,529 
• Modelled Residue Count: 288 
• Deposited Residue Count: 308 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Kelch-like ECH-associated protein 1	A	308	Mus musculus	Mutation(s): 0  Gene Names: Keap1, Inrf2, Kiaa0132
UniProt
Find proteins for Q9Z2X8 (Mus musculus) Explore Q9Z2X8  Go to UniProtKB:  Q9Z2X8

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
L5F (Subject of Investigation/LOI)	B [auth A]	2-[(1S,2R,8S)-2,4,32-trimethyl-28,28-bis(oxidanylidene)-19,22,27-trioxa-28$l^{6}-thia-1,14,15,16-tetrazahexacyclo[21.5.3.1^{3,7}.1^{9,13}.0^{12,16}.0^{26,30}]tritriaconta-3(33),4,6,9(32),10,12,14,23,25,30-decaen-8-yl]ethanoic acid C30 H32 N4 O7 S CAHCZMVBPKUGCY-IBVKSMDESA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.32 Å
• R-Value Free: 0.207 
• R-Value Work: 0.198 
• R-Value Observed: 0.199 
• Space Group: P 6₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 103.373	α = 90
b = 103.373	β = 90
c = 55.712	γ = 120

Software Package:

Software Name	Purpose
BUSTER	refinement
autoPROC	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-07-13 
Deposition Author(s): Weber, C., Vuillard, L., Delerive, P., Miallau, L.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2022-07-13
  Type: Initial release
  
• Version 1.1: 2023-10-11
  Changes: Data collection, Database references