2RE1

Crystal structure of aspartokinase alpha and beta subunits

• PDB DOI: https://doi.org/10.2210/pdb2RE1/pdb

• Classification: TRANSFERASE
• Organism(s): Neisseria meningitidis MC58
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2007-09-25 Released: 2007-10-09 
• Deposition Author(s): Chang, C., Li, H., Gu, M., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.75 Å
• R-Value Free: 
  0.276 (Depositor), 0.279 (DCC) 
• R-Value Work: 
  0.234 (Depositor), 0.232 (DCC) 
• R-Value Observed: 
  0.236 (Depositor) 

Literature

Crystal structure of aspartokinase alpha and beta subunits.

Chang, C., Li, H., Gu, M., Joachimiak, A.

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: 36.58 kDa 
• Atom Count: 2,210 
• Modelled Residue Count: 301 
• Deposited Residue Count: 334 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Aspartokinase, alpha and beta subunits	A, B	167	Neisseria meningitidis MC58	Mutation(s): 0  Gene Names: lysC, NMB1498 EC: 2.7.2.4
UniProt
Find proteins for Q9JYN6 (Neisseria meningitidis serogroup B (strain ATCC BAA-335 / MC58)) Explore Q9JYN6  Go to UniProtKB:  Q9JYN6

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	C [auth A], D [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-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: 2.75 Å
• R-Value Free:  0.276 (Depositor), 0.279 (DCC) 
• R-Value Work:  0.234 (Depositor), 0.232 (DCC) 
• R-Value Observed: 0.236 (Depositor) 

Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 61.806	α = 90
b = 61.806	β = 90
c = 191.901	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-10-09 
Deposition Author(s): Chang, C., Li, H., Gu, M., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2007-10-09
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2024-10-30
  Changes: Data collection, Database references, Derived calculations, Structure summary