9KVW | pdb_00009kvw

Crystal Structures of Keap1-compound complexes

• PDB DOI: https://doi.org/10.2210/pdb9KVW/pdb

• Classification: PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-12-05 Released: 2025-12-10 
• Deposition Author(s): Zhuang, C.L., Yu, R.L.
• Funding Organization(s): National Natural Science Foundation of China (NSFC), Ministry of Science and Technology (MoST, China)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.44 Å
• R-Value Free: 
  0.233 (Depositor), 0.237 (DCC) 
• R-Value Work: 
  0.216 (Depositor), 0.219 (DCC) 
• R-Value Observed: 
  0.217 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of Keap1-CD10

Zhuang, C.L., Yu, R.Z.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 32.38 kDa 
• Atom Count: 2,488 
• Modeled Residue Count: 278 
• Deposited Residue Count: 288 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Kelch-like ECH-associated protein 1	A	288	Homo sapiens	Mutation(s): 0  Gene Names: KEAP1, INRF2, KIAA0132, KLHL19
UniProt & NIH Common Fund Data Resources
Find proteins for Q14145 (Homo sapiens) Explore Q14145  Go to UniProtKB:  Q14145
PHAROS:  Q14145 GTEx:  ENSG00000079999

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A1EHH (Subject of Investigation/LOI)	B [auth A]	~{N}-[4-[(2-azanyl-2-oxidanylidene-ethyl)-[4-[(2-azanyl-2-oxidanylidene-ethyl)-(4-methoxyphenyl)sulfonyl-amino]naphthalen-1-yl]sulfamoyl]phenyl]-3-(2-oxa-8-azaspiro[4.5]decan-8-yl)propanamide C38 H44 N6 O9 S2 ODOXLPYUODJKBR-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.44 Å
• R-Value Free:  0.233 (Depositor), 0.237 (DCC) 
• R-Value Work:  0.216 (Depositor), 0.219 (DCC) 
• R-Value Observed: 0.217 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 38.584	α = 90
b = 72.958	β = 100.6
c = 48.057	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-3000	data scaling
HKL-3000	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-12-10 
Deposition Author(s): Zhuang, C.L., Yu, R.L.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	82022065
Ministry of Science and Technology (MoST, China)	China	2021YFA1302200

Revision History  

• Version 1.0: 2025-12-10
  Type: Initial release