4IFN

Crystal Structures of apo Keap1, Keap1-peptide, and Keap1-compound complexes

• PDB DOI: https://doi.org/10.2210/pdb4IFN/pdb

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


• Deposited: 2012-12-14 Released: 2013-12-18 
• Deposition Author(s): Pan, H., Lin, M., Yang, Y., Callaway, K., Baker, J., Diep, L., Yan, J., Tanaka, K., Zhu, Y.L., Konradi, A.W., Jobling, M., Tam, D., Ren, Z., Cheung, H., Bova, M., Riley, B.E., Yao, N., Artis, D.R.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.352 
• R-Value Work: 0.274 
• R-Value Observed: 0.278 

Literature

Crystal Structures of apo Keap1, Keap1-peptide, and Keap1-compound complexes

Pan, H., Lin, M., Yang, Y., Callaway, K., Baker, J., Diep, L., Yan, J., Tanaka, K., Zhu, Y.L., Konradi, A.W., Jobling, M., Tam, D., Ren, Z., Cheung, H., Bova, M., Riley, B.E., Yao, N., Artis, D.R.

(null) Acta Crystallogr D Biol Crystallogr 

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 32.28 kDa 
• Atom Count: 2,345 
• Modelled Residue Count: 285 
• Deposited Residue Count: 291 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
kelch-like ECH-associated protein 1	A [auth X]	291	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
12O	B [auth X]	(1R,2R)-2-{[(1S)-1-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]-3,4-dihydroisoquinolin-2(1H)-yl]carbonyl}cyclohexanecarboxylic acid C26 H26 N2 O5 LNENLABLFGGAFF-YPAWHYETSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
12O	BindingDB:  4IFN	Kd: 7.00e+5 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.352 
• R-Value Work: 0.274 
• R-Value Observed: 0.278 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 124.878	α = 90
b = 75.258	β = 106.34
c = 48.754	γ = 90

Software Package:

Software Name	Purpose
CrystalClear	data collection
AMoRE	phasing
REFMAC	refinement
CrystalClear	data reduction
CrystalClear	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-12-18 
Deposition Author(s): Pan, H., Lin, M., Yang, Y., Callaway, K., Baker, J., Diep, L., Yan, J., Tanaka, K., Zhu, Y.L., Konradi, A.W., Jobling, M., Tam, D., Ren, Z., Cheung, H., Bova, M., Riley, B.E., Yao, N., Artis, D.R.

Revision History  

• Version 1.0: 2013-12-18
  Type: Initial release