2W21 | pdb_00002w21

Crystal structure of the aminoacid kinase domain of the glutamate 5 kinase of Escherichia coli.

• PDB DOI: https://doi.org/10.2210/pdb2W21/pdb

• Classification: TRANSFERASE
• Organism(s): Escherichia coli BL21
• Expression System: Escherichia coli BL21
• Mutation(s): Yes 


• Deposited: 2008-10-21 Released: 2009-11-17 
• Deposition Author(s): Perez-Arellano, I., Gil-Ortiz, F., Marco-Marin, C., Cervera, J., Rubio, V.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.95 Å
• R-Value Free: 
  0.259 (Depositor), 0.237 (DCC) 
• R-Value Work: 
  0.206 (Depositor), 0.203 (DCC) 
• R-Value Observed: 
  0.209 (Depositor) 

Starting Model: experimental

Literature

The Structure of Glutamate 5 Kinase of Escherichia Coli without Substrates

Perez-Arellano, I., Gil-Ortiz, F., Marco-Marin, C., Cervera, J., Rubio, V.

To be published.

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: 27.66 kDa 
• Atom Count: 1,812 
• Modeled Residue Count: 246 
• Deposited Residue Count: 259 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GLUTAMATE 5-KINASE	A	259	Escherichia coli BL21	Mutation(s): 1  EC: 2.7.2.11
UniProt
Find proteins for P0A7B5 (Escherichia coli (strain K12)) Explore P0A7B5  Go to UniProtKB:  P0A7B5

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A], C [auth A], D [auth A], E [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.95 Å
• R-Value Free:  0.259 (Depositor), 0.237 (DCC) 
• R-Value Work:  0.206 (Depositor), 0.203 (DCC) 
• R-Value Observed: 0.209 (Depositor) 

Space Group: P 6₂ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 141.358	α = 90
b = 141.358	β = 90
c = 78.373	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-11-17 
Deposition Author(s): Perez-Arellano, I., Gil-Ortiz, F., Marco-Marin, C., Cervera, J., Rubio, V.

Revision History  

• Version 1.0: 2009-11-17
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-12-13
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description