7EXI

Crystal structure of the BTB domain human Keap1

• PDB DOI: https://doi.org/10.2210/pdb7EXI/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2021-05-27 Released: 2021-12-01 
• Deposition Author(s): Padmanabhan, B., Deshmukh, P., Gopinath, K., Unni, S.
• Funding Organization(s): Science and Engineering Research Board (SERB)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.82 Å
• R-Value Free: 0.244 
• R-Value Work: 0.209 
• R-Value Observed: 0.211 

Literature

Crystal structure of the BTB domain human Keap1

Padmanabhan, B., Deshmukh, P., Gopinath, K., Unni, S.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 15.65 kDa 
• Atom Count: 1,070 
• Modelled Residue Count: 130 
• Deposited Residue Count: 140 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Kelch-like ECH-associated protein 1	A	140	Homo sapiens	Mutation(s): 1  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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.82 Å
• R-Value Free: 0.244 
• R-Value Work: 0.209 
• R-Value Observed: 0.211 
• Space Group: P 6₅ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.976	α = 90
b = 42.976	β = 90
c = 266.628	γ = 120

Software Package:

Software Name	Purpose
HKL-2000	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
HKL-3000	data reduction
PHENIX	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2021-12-01 
Deposition Author(s): Padmanabhan, B., Deshmukh, P., Gopinath, K., Unni, S.

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Funding Organization	Location	Grant Number
Science and Engineering Research Board (SERB)	India	EMR/2015/000735

Revision History  

• Version 1.0: 2021-12-01
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Data collection, Refinement description