3NX3 | pdb_00003nx3

Crystal structure of acetylornithine aminotransferase (argD) from Campylobacter jejuni

• PDB DOI: https://doi.org/10.2210/pdb3NX3/pdb

• Classification: TRANSFERASE
• Organism(s): Campylobacter jejuni subsp. jejuni NCTC 11168 = ATCC 700819
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2010-07-12 Released: 2010-08-25 
• Deposition Author(s): Anderson, S.M., Wawrzak, Z., Onopriyenko, O., Skarina, T., Anderson, W.F., Savchenko, A., Center for Structural Genomics of Infectious Diseases (CSGID)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 
  0.196 (Depositor), 0.207 (DCC) 
• R-Value Work: 
  0.153 (Depositor) 
• R-Value Observed: 
  0.155 (Depositor) 

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)

Macromolecule Content 

• Total Structure Weight: 88.44 kDa 
• Atom Count: 6,845 
• Modeled Residue Count: 768 
• Deposited Residue Count: 790 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acetylornithine aminotransferase	A, B	395	Campylobacter jejuni subsp. jejuni NCTC 11168 = ATCC 700819	Mutation(s): 0  Gene Names: argD, Cj0227 EC: 2.6.1.11
UniProt
Find proteins for Q9PIR7 (Campylobacter jejuni subsp. jejuni serotype O:2 (strain ATCC 700819 / NCTC 11168)) Explore Q9PIR7  Go to UniProtKB:  Q9PIR7

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MG	C [auth A], D [auth A], E [auth A], F [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free:  0.196 (Depositor), 0.207 (DCC) 
• R-Value Work:  0.153 (Depositor) 
• R-Value Observed: 0.155 (Depositor) 

Diffraction Data: https://doi.org/10.18430/m33nx3

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.11	α = 90
b = 66.16	β = 90
c = 214.34	γ = 90

Software Package:

Software Name	Purpose
XSCALE	data processing
PHENIX	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
XSCALE	data scaling
SHELXS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-08-25 
Deposition Author(s): Anderson, S.M., Wawrzak, Z., Onopriyenko, O., Skarina, T., Anderson, W.F., Savchenko, A., Center for Structural Genomics of Infectious Diseases (CSGID)

Revision History  

• Version 1.0: 2010-08-25
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2025-03-26
  Changes: Data collection, Database references, Derived calculations, Structure summary