3ABF | pdb_00003abf

Crystal Structure of a 4-Oxalocrotonate Tautomerase Homologue (TTHB242)

• PDB DOI: https://doi.org/10.2210/pdb3ABF/pdb

• Classification: ISOMERASE
• Organism(s): Thermus thermophilus HB8
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-12-10 Released: 2010-12-15 
• Deposition Author(s): Kida, H., Miki, K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.94 Å
• R-Value Free: 
  0.228 (Depositor), 0.230 (DCC) 
• R-Value Work: 
  0.193 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.193 (Depositor) 

Starting Model: experimental

Literature

Crystal Structure of a 4-Oxalocrotonate Tautomerase Homologue (TTHB242) from Thermus thermophilus HB8

Kida, H., Kita, A., Miki, K.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

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

Macromolecule Content 

• Total Structure Weight: 44.85 kDa 
• Atom Count: 3,225 
• Modeled Residue Count: 376 
• Deposited Residue Count: 384 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
4-oxalocrotonate tautomerase	A, B, C, D, E, F	64	Thermus thermophilus HB8	Mutation(s): 0  Gene Names: TTHB242 EC: 5.3.2.2
UniProt
Find proteins for Q53WI4 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8)) Explore Q53WI4  Go to UniProtKB:  Q53WI4

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.94 Å
• R-Value Free:  0.228 (Depositor), 0.230 (DCC) 
• R-Value Work:  0.193 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.193 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 55.227	α = 90
b = 70.676	β = 90
c = 89.906	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
CNS	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-12-15 
Deposition Author(s): Kida, H., Miki, K.

Revision History  

• Version 1.0: 2010-12-15
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-10-11
  Changes: Refinement description
• Version 1.3: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description