8SWM | pdb_00008swm

Crystal structure of Campylobacter jejuni ketol-acid reductoisomerase in complex with 2-acetolactate

• PDB DOI: https://doi.org/10.2210/pdb8SWM/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Campylobacter jejuni subsp. jejuni
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2023-05-19 Released: 2024-04-24 
• Deposition Author(s): Lin, X., Lonhienne, T., Guddat, L.W.
• Funding Organization(s): Australian Research Council (ARC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 
  0.249 (Depositor), 0.250 (DCC) 
• R-Value Work: 
  0.225 (Depositor), 0.220 (DCC) 
• R-Value Observed: 
  0.228 (Depositor) 

Starting Model: experimental

Literature

Mapping of the Reaction Trajectory catalyzed by Class I Ketol-Acid Reductoisomerase

Lin, X., Lonhienne, T., Lv, Y., Kurz, J., McGeary, R., Schenk, G., Guddat, L.W.

(2024) ACS Catal 

• DOI: https://doi.org/10.1021/acscatal.4c00958

Biological Assembly 1  

Global Symmetry: Tetrahedral - T  (Explore in 3D)
Global Stoichiometry: Homo 12-mer - A12 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 36.11 kDa 
• Atom Count: 2,412 
• Modeled Residue Count: 323 
• Deposited Residue Count: 330 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ketol-acid reductoisomerase (NADP(+))	A	330	Campylobacter jejuni subsp. jejuni	Mutation(s): 0  Gene Names: ilvC, CJE0735 EC: 1.1.1.86
UniProt
Find proteins for Q9PHN5 (Campylobacter jejuni subsp. jejuni serotype O:2 (strain ATCC 700819 / NCTC 11168)) Explore Q9PHN5  Go to UniProtKB:  Q9PHN5

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
X2X (Subject of Investigation/LOI)	E [auth A]	(2S)-2-hydroxy-2-methyl-3-oxobutanoic acid C5 H8 O4 NMDWGEGFJUBKLB-YFKPBYRVSA-N
CL	F [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
MG	B [auth A], C [auth A], D [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free:  0.249 (Depositor), 0.250 (DCC) 
• R-Value Work:  0.225 (Depositor), 0.220 (DCC) 
• R-Value Observed: 0.228 (Depositor) 

Space Group: I 2 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 130.715	α = 90
b = 130.715	β = 90
c = 130.715	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-04-24 
Deposition Author(s): Lin, X., Lonhienne, T., Guddat, L.W.

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Funding Organization	Location	Grant Number
Australian Research Council (ARC)	Australia	DP210101802

Revision History  

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