3QSR | pdb_00003qsr

Crystal structure of Trichomonas vaginalis triosephosphate isomerase TVAG_497370 gene (Ile-45 variant)

• PDB DOI: https://doi.org/10.2210/pdb3QSR/pdb

• Classification: ISOMERASE
• Organism(s): Trichomonas vaginalis
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2011-02-21 Released: 2012-07-04 
• Deposition Author(s): Lara-Gonzalez, S., Salgado-Lugo, H., Brieba, L.G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 
  0.222 (Depositor), 0.222 (DCC) 
• R-Value Work: 
  0.176 (Depositor), 0.172 (DCC) 
• R-Value Observed: 
  0.179 (Depositor) 

Literature

Crystal structure of Trichomonas vaginalis triosephosphate isomerase TVAG_497370 gene

Salgado-Lugo, H., Lara-Gonzalez, S., Brieba, L.G.

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)

Macromolecule Content 

• Total Structure Weight: 27.83 kDa 
• Atom Count: 2,070 
• Modeled Residue Count: 251 
• Deposited Residue Count: 255 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Triosephosphate isomerase	A	255	Trichomonas vaginalis	Mutation(s): 0  Gene Names: TVAG_497370 EC: 5.3.1.1
UniProt
Find proteins for A2EGX9 (Trichomonas vaginalis (strain ATCC PRA-98 / G3)) Explore A2EGX9  Go to UniProtKB:  A2EGX9

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NA	B [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CSO	A	L-PEPTIDE LINKING	C3 H7 N O3 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free:  0.222 (Depositor), 0.222 (DCC) 
• R-Value Work:  0.176 (Depositor), 0.172 (DCC) 
• R-Value Observed: 0.179 (Depositor) 

Space Group: P 2 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.82	α = 90
b = 55.75	β = 90
c = 103.94	γ = 90

Software Package:

Software Name	Purpose
d*TREK	data scaling
SCALA	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
MOSFLM	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-07-04 
Deposition Author(s): Lara-Gonzalez, S., Salgado-Lugo, H., Brieba, L.G.

Revision History  

• Version 1.0: 2012-07-04
  Type: Initial release
  
• Version 1.1: 2018-03-07
  Changes: Data collection
• Version 1.2: 2024-11-27
  Changes: Data collection, Database references, Derived calculations, Structure summary