1AKM

ORNITHINE TRANSCARBAMYLASE FROM ESCHERICHIA COLI

• PDB DOI: https://doi.org/10.2210/pdb1AKM/pdb

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


• Deposited: 1997-05-23 Released: 1998-05-27 
• Deposition Author(s): Head, J.F., Seaton, B., Jin, L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.302 
• R-Value Work: 0.229 
• R-Value Observed: 0.229 

Literature

Crystal structure at 2.8 A resolution of anabolic ornithine transcarbamylase from Escherichia coli.

Jin, L., Seaton, B.A., Head, J.F.

(1997) Nat Struct Biol 4: 622-625

• PubMed: 9253409 
• DOI: https://doi.org/10.1038/nsb0897-622
• Primary Citation of Related Structures:  
  1AKM

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

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

Macromolecule Content

• Total Structure Weight: 110.46 kDa 
• Atom Count: 7,482 
• Modelled Residue Count: 966 
• Deposited Residue Count: 999 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ORNITHINE TRANSCARBAMYLASE	A, B, C	333	Escherichia coli	Mutation(s): 0  Gene Names: ARGI EC: 2.1.3.3
UniProt
Find proteins for P04391 (Escherichia coli (strain K12)) Explore P04391  Go to UniProtKB:  P04391

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.302 
• R-Value Work: 0.229 
• R-Value Observed: 0.229 
• Space Group: P 3₂

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 104.6	α = 90
b = 104.6	β = 90
c = 86.7	γ = 120

Software Package:

Software Name	Purpose
AMoRE	phasing
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-05-27 
Deposition Author(s): Head, J.F., Seaton, B., Jin, L.

Revision History  

• Version 1.0: 1998-05-27
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-02
  Changes: Database references, Refinement description