1VB3

Crystal Structure of Threonine Synthase from Escherichia coli

• PDB DOI: https://doi.org/10.2210/pdb1VB3/pdb

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


• Deposited: 2004-02-21 Released: 2005-06-21 
• Deposition Author(s): Omi, R.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.262 
• R-Value Work: 0.224 

Literature

Crystal Structure of Threonine Synthase from Escherichia coli

Omi, R., Goto, M., Miyahara, I., Mizuguchi, H., Hayashi, H., Kagamiyama, H., Hirotsu, K.

To be published.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 47.45 kDa 
• Atom Count: 3,522 
• Modelled Residue Count: 428 
• Deposited Residue Count: 428 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Threonine synthase	A	428	Escherichia coli	Mutation(s): 0  EC: 4.2.3.1
UniProt
Find proteins for P00934 (Escherichia coli (strain K12)) Explore P00934  Go to UniProtKB:  P00934

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
KPA	C [auth A]	2-OXO-5-PHOSPHONOPENTANOIC ACID C5 H9 O6 P UFXCSKVWNXIICO-UHFFFAOYSA-N
SO4	B [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.262 
• R-Value Work: 0.224 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 86.931	α = 90
b = 86.931	β = 90
c = 141.331	γ = 120

Software Package:

Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
AMoRE	phasing
CNS	refinement
CCP4	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-06-21 
Deposition Author(s): Omi, R.

Revision History  

• Version 1.0: 2005-06-21
  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: 2023-12-27
  Changes: Data collection, Database references, Derived calculations