9L8Q | pdb_00009l8q

Crystal Structures of Keap1-B4 complexes

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

  • Deposited: 2024-12-28 Released: 2025-12-31 
  • Deposition Author(s): Zhuang, C.L., Yu, R.Z.
  • Funding Organization(s): National Natural Science Foundation of China (NSFC), Ministry of Science and Technology (MoST, China)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 
    0.283 (Depositor), 0.284 (DCC) 
  • R-Value Work: 
    0.211 (Depositor), 0.221 (DCC) 
  • R-Value Observed: 
    0.218 (Depositor) 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history. 


Literature

Crystal structure of Keap1-B4

Zhuang, C.L., Yu, R.Z.

To be published.

Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Kelch-like ECH-associated protein 1288Homo sapiensMutation(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 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ14145
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
A1EJB (Subject of Investigation/LOI)
Query on A1EJB
Download Ideal Coordinates CCD File 
B [auth A](S)-2,2'-(5,5,9,9-tetraoxido-2,12,17-trioxo-11-oxa-5,9-dithia-3,6,8-triaza-1(2,1)-pyrrolidina-7(1,4)-naphthalena-4(1,4),10(1,3)-dibenzenacycloheptadecaphane-6,8-diyl)diacetamide
C37 H38 N6 O10 S2
TWLTUMVIWMYQNU-YTTGMZPUSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free:  0.283 (Depositor), 0.284 (DCC) 
  • R-Value Work:  0.211 (Depositor), 0.221 (DCC) 
  • R-Value Observed: 0.218 (Depositor) 
Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 36.603α = 90
b = 43.794β = 94.09
c = 66.006γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
xia2data scaling
PHASERphasing

Structure Validation

View Full Validation Report



View more in-depth experimental data
Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China82022065
Ministry of Science and Technology (MoST, China)China2021YFA1302200

Revision History  (Full details and data files)

  • Version 1.0: 2025-12-31
    Type: Initial release