9LHW | pdb_00009lhw

Crystal structure of a wild-type tagose isomerase (TsT4Ease WT) from Thermotogota bacterium

• PDB DOI: https://doi.org/10.2210/pdb9LHW/pdb

• Classification: ISOMERASE
• Organism(s): Thermotogota bacterium
• Expression System: Escherichia coli 'BL21-Gold(DE3)pLysS AG
• Mutation(s): No 


• Deposited: 2025-01-13 Released: 2025-12-24 
• Deposition Author(s): Wei, H.L., Wang, Y.X., Liu, W.D., Zhu, L.L.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free: 
  0.267 (Depositor), 0.274 (DCC) 
• R-Value Work: 
  0.229 (Depositor), 0.240 (DCC) 
• R-Value Observed: 
  0.230 (Depositor) 

Starting Model: in silico

Literature

Crystal structure of a wild-type tagose isomerase (TsT4Ease WT) from Thermotogota bacterium

Wei, H.L., Wang, Y.X., Liu, W.D., Zhu, L.L.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Biological Assembly 3  

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

Biological assembly 3 assigned by authors.

Biological Assembly 4  

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

Biological assembly 4 assigned by authors.

Biological Assembly 5  

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

Biological assembly 5 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 290.46 kDa 
• Atom Count: 19,930 
• Modeled Residue Count: 2,485 
• Deposited Residue Count: 2,535 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tagaturonate/fructuronate epimerase	A, B, C, D, E	507	Thermotogota bacterium	Mutation(s): 0  Gene Names: uxaE, DHV12_03255 EC: 5.1.2.7

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
SEP	A, B, C, D, E	L-PEPTIDE LINKING	C3 H8 N O6 P		SER

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free:  0.267 (Depositor), 0.274 (DCC) 
• R-Value Work:  0.229 (Depositor), 0.240 (DCC) 
• R-Value Observed: 0.230 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 102.86	α = 90
b = 108.212	β = 108.05
c = 138.775	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XSCALE	data scaling
xia2	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-12-24 
Deposition Author(s): Wei, H.L., Wang, Y.X., Liu, W.D., Zhu, L.L.

---

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	--

Revision History  

• Version 1.0: 2025-12-24
  Type: Initial release