1KAG

Crystal Structure of the Escherichia coli Shikimate Kinase I (AroK)

• PDB DOI: https://doi.org/10.2210/pdb1KAG/pdb

• Classification: TRANSFERASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2001-11-01 Released: 2002-05-08 
• Deposition Author(s): Romanowski, M.J., Burley, S.K., New York SGX Research Center for Structural Genomics (NYSGXRC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.271 
• R-Value Work: 0.217 
• R-Value Observed: 0.217 

Literature

Crystal structure of the Escherichia coli shikimate kinase I (AroK) that confers sensitivity to mecillinam.

Romanowski, M.J., Burley, S.K.

(2002) Proteins 47: 558-562

• PubMed: 12001235 
• DOI: https://doi.org/10.1002/prot.10099
• Primary Citation of Related Structures:  
  1KAG

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Organizational Affiliation: 

Laboratories of Molecular Biophysics, The Rockefeller University, New York, New York.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 39.13 kDa 
• Atom Count: 2,672 
• Modelled Residue Count: 307 
• Deposited Residue Count: 346 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Shikimate kinase I	A, B	173	Escherichia coli	Mutation(s): 0  Gene Names: AROK EC: 2.7.1.71
UniProt
Find proteins for P0A6D7 (Escherichia coli (strain K12)) Explore P0A6D7  Go to UniProtKB:  P0A6D7

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.271 
• R-Value Work: 0.217 
• R-Value Observed: 0.217 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 35.726	α = 90
b = 63.417	β = 91.27
c = 67.941	γ = 90

Software Package:

Software Name	Purpose
SnB	phasing
MLPHARE	phasing
DM	model building
CNS	refinement
MARMAD	data reduction
DENZO	data reduction
SCALEPACK	data scaling
DM	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-05-08 
Deposition Author(s): Romanowski, M.J., Burley, S.K., New York SGX Research Center for Structural Genomics (NYSGXRC)

Revision History  

• Version 1.0: 2002-05-08
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2021-02-03
  Changes: Database references, Refinement description, Structure summary
• Version 1.4: 2024-02-07
  Changes: Data collection, Database references