8JBP

Crystal structure of triosephosphate isomerase from Leishmania orientalis at 1.45 angstroms resolution with an arsenic atom bound at Cys57

• PDB DOI: https://doi.org/10.2210/pdb8JBP/pdb

• Classification: ISOMERASE
• Organism(s): Leishmania orientalis
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2023-05-09 Released: 2024-05-15 
• Deposition Author(s): Kuaprasert, B., Leartsakulpanich, U., Riangrungroj, P., Pornthanakasem, W., Suginta, W., Robinson, R.C., Zhou, Y., Mungthin, M., Leelayoova, S., Saehlee, S., Choowongkomon, K.
• Funding Organization(s): Synchrotron Light Research Institute (SLRI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free: 0.190 
• R-Value Work: 0.162 
• R-Value Observed: 0.164 

Starting Model: experimental

Literature

Leishmania orientalis triosephosphate isomerase crystal structure at 1.45 angstroms resolution and its potential specific inhibitors

Kuaprasert, B., Leartsakulpanich, U., Riangrungroj, P., Pornthanakasem, W., Suginta, W., Robinson, C.R., Zhou, Y., Mungthin, M., Leelayoova, S., Saehlee, S., Kiriwan, D., Choowongkomon, K.

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

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 58.64 kDa 
• Atom Count: 4,234 
• Modelled Residue Count: 490 
• Deposited Residue Count: 542 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Triosephosphate isomerase	A, B	271	Leishmania orientalis	Mutation(s): 0  Gene Names: LSCM4_05371 EC: 5.3.1.1
UniProt
Find proteins for A0A836H5J0 (Leishmania orientalis) Explore A0A836H5J0  Go to UniProtKB:  A0A836H5J0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ARS	C [auth A], D [auth B]	ARSENIC As RBFQJDQYXXHULB-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free: 0.190 
• R-Value Work: 0.162 
• R-Value Observed: 0.164 
• Space Group: P 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 39.7	α = 90
b = 79.353	β = 101.24
c = 83.114	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data scaling
DENZO	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-05-15 
Deposition Author(s): Kuaprasert, B., Leartsakulpanich, U., Riangrungroj, P., Pornthanakasem, W., Suginta, W., Robinson, R.C., Zhou, Y., Mungthin, M., Leelayoova, S., Saehlee, S., Choowongkomon, K.

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Funding Organization	Location	Grant Number
Synchrotron Light Research Institute (SLRI)	Thailand	SLRI 3-62 and Kasetsart University Research and Development Institute, Kasetsart University, Thailand, Grant Number FF(KU) 6.64

Revision History  

• Version 1.0: 2024-05-15
  Type: Initial release