5AQ1

Trypanosoma cruzi Glucose-6-phosphate Dehydrogenase in complex with G6P and NADPH


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The Structure of a Trypanosoma Cruzi Glucose-6-Phosphate Dehydrogenase Reveals Differences from the Mammalian Enzyme.

Mercaldi, G.F.Dawson, A.Hunter, W.N.Cordeiro, A.T.

(2016) FEBS Lett. 590: 2776

  • DOI: 10.1002/1873-3468.12276

  • PubMed Abstract: 
  • The enzyme glucose-6-phosphate dehydrogenase from Trypanosoma cruzi (TcG6PDH) catalyses the first step of the pentose phosphate pathway (PPP) and is considered a promising target for the discovery of a new drug against Chagas diseases. In the present ...

    The enzyme glucose-6-phosphate dehydrogenase from Trypanosoma cruzi (TcG6PDH) catalyses the first step of the pentose phosphate pathway (PPP) and is considered a promising target for the discovery of a new drug against Chagas diseases. In the present work, we describe the crystal structure of TcG6PDH obtained in a ternary complex with the substrate β-d-glucose-6-phosphate (G6P) and the reduced 'catalytic' cofactor NADPH, which reveals the molecular basis of substrate and cofactor recognition. A comparison with the homologous human protein sheds light on differences in the cofactor-binding site that might be explored towards the design of new NADP(+) competitive inhibitors targeting the parasite enzyme.


    Organizational Affiliation

    Brazilian Biosciences National Laboratory, Center of Research in Energy and Materials, Campinas, Brazil.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GLUCOSE-6-PHOSPHATE DEHYDROGENASE
A, B, C
509Trypanosoma cruzi (strain CL Brener)Mutation(s): 0 
EC: 1.1.1.49
Find proteins for Q4E0B2 (Trypanosoma cruzi (strain CL Brener))
Go to UniProtKB:  Q4E0B2
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BG6
Query on BG6

Download SDF File 
Download CCD File 
A, B, C
BETA-D-GLUCOSE-6-PHOSPHATE
C6 H13 O9 P
NBSCHQHZLSJFNQ-VFUOTHLCSA-N
 Ligand Interaction
NDP
Query on NDP

Download SDF File 
Download CCD File 
A, B, C
NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H30 N7 O17 P3
ACFIXJIJDZMPPO-NNYOXOHSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.200 
  • Space Group: I 41 2 2
Unit Cell:
Length (Å)Angle (°)
a = 154.946α = 90.00
b = 154.946β = 90.00
c = 348.358γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
REFMACrefinement
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-07-20
    Type: Initial release
  • Version 1.1: 2016-09-28
    Type: Database references