8GIL

L-threonine 3-Dehydrogenase from Trypanosoma cruzi (apo form)

• PDB DOI: https://doi.org/10.2210/pdb8GIL/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Trypanosoma cruzi
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2023-03-14 Released: 2024-03-20 
• Deposition Author(s): Faria, J.N., Mercaldi, G.F., Fagundes, M., Bezerra, E.H.S., Cordeiro, A.T.
• Funding Organization(s): Sao Paulo Research Foundation (FAPESP)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.258 
• R-Value Work: 0.200 

Literature

Structure, allosteric regulation and metabolic activity of L-threonine 3-Dehydrogenase from Trypanosoma cruzi

Faria, J.N., Mercaldi, G.F., Fagundes, M., Eufrasio, A.G., Cordeiro, A.T.

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)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 81.09 kDa 
• Atom Count: 5,064 
• Modelled Residue Count: 638 
• Deposited Residue Count: 732 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
L-threonine 3-dehydrogenase	A, B	366	Trypanosoma cruzi	Mutation(s): 0  Gene Names: Tc00.1047053507923.10 EC: 1.1.1.103
UniProt
Find proteins for Q4CU39 (Trypanosoma cruzi (strain CL Brener)) Explore Q4CU39  Go to UniProtKB:  Q4CU39

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
K (Subject of Investigation/LOI)	C [auth A], D [auth B]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.258 
• R-Value Work: 0.200 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.685	α = 90
b = 81.834	β = 90.546
c = 83.674	γ = 90

Software Package:

Software Name	Purpose
MxCuBE	data collection
XDS	data reduction
Aimless	data scaling
PHASER	phasing
REFMAC	refinement
Coot	model building
PDB_EXTRACT	data extraction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-03-20 
Deposition Author(s): Faria, J.N., Mercaldi, G.F., Fagundes, M., Bezerra, E.H.S., Cordeiro, A.T.

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Funding Organization	Location	Grant Number
Sao Paulo Research Foundation (FAPESP)	Brazil	2018/22202-8
Sao Paulo Research Foundation (FAPESP)	Brazil	2021/14741-9

Revision History  

• Version 1.0: 2024-03-20
  Type: Initial release