1AQ2

PHOSPHOENOLPYRUVATE CARBOXYKINASE

• PDB DOI: https://doi.org/10.2210/pdb1AQ2/pdb

• Classification: KINASE
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1997-08-05 Released: 1998-10-14 
• Deposition Author(s): Tari, L.W., Matte, A., Goldie, H., Delbaere, L.T.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.260 
• R-Value Work: 0.218 
• R-Value Observed: 0.218 

Starting Model: experimental

Literature

Mg(2+)-Mn2+ clusters in enzyme-catalyzed phosphoryl-transfer reactions.

Tari, L.W., Matte, A., Goldie, H., Delbaere, L.T.

(1997) Nat Struct Biol 4: 990-994

• PubMed: 9406547 
• DOI: https://doi.org/10.1038/nsb1297-990
• Primary Citation of Related Structures:  
  1AQ2

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 60.38 kDa 
• Atom Count: 4,385 
• Modelled Residue Count: 534 
• Deposited Residue Count: 540 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PHOSPHOENOLPYRUVATE CARBOXYKINASE	A	540	Escherichia coli K-12	Mutation(s): 0  EC: 4.1.1.49
UniProt
Find proteins for P22259 (Escherichia coli (strain K12)) Explore P22259  Go to UniProtKB:  P22259

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ATP	D [auth A]	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N
PYR	E [auth A]	PYRUVIC ACID C3 H4 O3 LCTONWCANYUPML-UHFFFAOYSA-N
MN	B [auth A]	MANGANESE (II) ION Mn WAEMQWOKJMHJLA-UHFFFAOYSA-N
MG	C [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.260 
• R-Value Work: 0.218 
• R-Value Observed: 0.218 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 126.19	α = 90
b = 96.61	β = 95.8
c = 46.86	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
MADNES	data reduction
CCP4	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-10-14 
Deposition Author(s): Tari, L.W., Matte, A., Goldie, H., Delbaere, L.T.J.

Revision History  

• Version 1.0: 1998-10-14
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.3: 2017-11-29
  Changes: Derived calculations, Other
• Version 1.4: 2018-04-18
  Changes: Data collection
• Version 1.5: 2023-08-02
  Changes: Database references, Derived calculations, Refinement description
• Version 2.0: 2023-11-15
  Changes: Atomic model, Data collection