8J4Q

Crystal structure of eKatE (extra KatE) from atypical E. coli

• PDB DOI: https://doi.org/10.2210/pdb8J4Q/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2023-04-20 Released: 2024-04-24 
• Deposition Author(s): Yoo, Y.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.213 
• R-Value Work: 0.173 
• R-Value Observed: 0.173 

Starting Model: experimental

Literature

Crystal structure of eKatE (extra KatE) from atypical E. coli

Yoo, Y.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 340.39 kDa 
• Atom Count: 24,699 
• Modelled Residue Count: 2,891 
• Deposited Residue Count: 3,000 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Catalase	A	750	Escherichia coli	Mutation(s): 0  Gene Names: B2H83_27520 EC: 1.11.1.6
UniProt
Find proteins for A0A6I8WFM0 (Escherichia coli M8) Explore A0A6I8WFM0  Go to UniProtKB:  A0A6I8WFM0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Catalase	B, C, D	750	Escherichia coli	Mutation(s): 0  Gene Names: B2H83_27520 EC: 1.11.1.6
UniProt
Find proteins for A0A6I8WFM0 (Escherichia coli M8) Explore A0A6I8WFM0  Go to UniProtKB:  A0A6I8WFM0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	E [auth A], F [auth B], G [auth C], H [auth D]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L

Modified Residues  2 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
OCS	A	L-PEPTIDE LINKING	C3 H7 N O5 S		CYS
CSD	B, C, D	L-PEPTIDE LINKING	C3 H7 N O4 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.213 
• R-Value Work: 0.173 
• R-Value Observed: 0.173 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 76.585	α = 90
b = 178.935	β = 106.7
c = 107.279	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-04-24 
Deposition Author(s): Yoo, Y.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2024-04-24
  Type: Initial release