8IN0 | pdb_00008in0

Structure of the Keap1 Kelch domain in complex with PGAM5-derived peptide

• PDB DOI: https://doi.org/10.2210/pdb8IN0/pdb

• Classification: CYTOSOLIC PROTEIN
• Organism(s): Mus musculus, Homo
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2023-03-08 Released: 2024-03-13 
• Deposition Author(s): Jiang, L., Wang, C.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 
  0.285 (Depositor), 0.290 (DCC) 
• R-Value Work: 
  0.253 (Depositor), 0.260 (DCC) 

Literature

Structure of the Keap1 Kelch domain in complex with PGAM5-derived peptide

Jiang, L., Wang, C.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: isothermal titration calorimetry

Macromolecule Content 

• Total Structure Weight: 40.09 kDa 
• Atom Count: 2,544 
• Modeled Residue Count: 299 
• Deposited Residue Count: 357 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Kelch-like ECH-associated protein 1	A	345	Mus musculus	Mutation(s): 0  Gene Names: Keap1, Inrf2, Kiaa0132
UniProt
Find proteins for Q9Z2X8 (Mus musculus) Explore Q9Z2X8  Go to UniProtKB:  Q9Z2X8

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
PGAM5 12-mer peptide	B	12	Homo	Mutation(s): 0  EC: 3.1.3.16
UniProt & NIH Common Fund Data Resources
Find proteins for Q96HS1 (Homo sapiens) Explore Q96HS1  Go to UniProtKB:  Q96HS1
PHAROS:  Q96HS1 GTEx:  ENSG00000247077

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4 (Subject of Investigation/LOI)	C [auth A], D [auth A], E [auth A], F [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free:  0.285 (Depositor), 0.290 (DCC) 
• R-Value Work:  0.253 (Depositor), 0.260 (DCC) 

Space Group: P 6₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 103.655	α = 90
b = 103.655	β = 90
c = 56.167	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
CrysalisPro	data reduction
Aimless	data scaling
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-03-13 
Deposition Author(s): Jiang, L., Wang, C.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	81874343

Revision History  

• Version 1.0: 2024-03-13
  Type: Initial release