2DQ4 | pdb_00002dq4

Crystal structure of threonine 3-dehydrogenase

• PDB DOI: https://doi.org/10.2210/pdb2DQ4/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Thermus thermophilus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-05-19 Released: 2007-06-12 
• Deposition Author(s): Omi, R., Yao, T., Goto, M., Miyahara, I., Hirotsu, K., RIKEN Structural Genomics/Proteomics Initiative (RSGI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 
  0.237 (Depositor), 0.240 (DCC) 
• R-Value Work: 
  0.207 (Depositor), 0.210 (DCC) 
• R-Value Observed: 
  0.207 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of threonine 3-dehydrogenase

Omi, R., Yao, T., Goto, M., Miyahara, I., Hirotsu, K.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Macromolecule Content 

• Total Structure Weight: 74.01 kDa 
• Atom Count: 5,344 
• Modeled Residue Count: 686 
• Deposited Residue Count: 686 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
L-threonine 3-dehydrogenase	A, B	343	Thermus thermophilus	Mutation(s): 0  EC: 1.1.1.103
UniProt
Find proteins for Q5SKS4 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8)) Explore Q5SKS4  Go to UniProtKB:  Q5SKS4

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MES	E [auth A], H [auth B]	2-(N-MORPHOLINO)-ETHANESULFONIC ACID C6 H13 N O4 S SXGZJKUKBWWHRA-UHFFFAOYSA-N
ZN	C [auth A], D [auth A], F [auth B], G [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free:  0.237 (Depositor), 0.240 (DCC) 
• R-Value Work:  0.207 (Depositor), 0.210 (DCC) 
• R-Value Observed: 0.207 (Depositor) 

Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 136.349	α = 90
b = 136.349	β = 90
c = 269.714	γ = 120

Software Package:

Software Name	Purpose
CNS	refinement
CrystalClear	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-06-12 
Deposition Author(s): Omi, R., Yao, T., Goto, M., Miyahara, I., Hirotsu, K., RIKEN Structural Genomics/Proteomics Initiative (RSGI)

Revision History  

• Version 1.0: 2007-06-12
  Type: Initial release
  
• Version 1.1: 2007-10-04
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description