The pentose phosphate pathway in Trypanosoma cruzi

FEMS Microbiol Lett. 2004 May 1;234(1):117-23. doi: 10.1016/j.femsle.2004.03.018.

Abstract

The pentose phosphate pathway has been studied in Trypanosoma cruzi, Clone CL Brener. Functioning of the pathway was demonstrated in epimastigotes by measuring the evolution of (14)CO(2) from [1-(14)C] or [6-(14)C]D-glucose. Glucose consumption through the PPP increased from 9.9% to 20.4% in the presence of methylene blue, which mimics oxidative stress. All the enzymes of the PPP are present in the four major developmental stages of the parasite. Subcellular localisation experiments suggested that the PPP enzymes have a cytosolic component, predominant in most cases, although all of them also seem to have organellar localisation(s).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aldose-Ketose Isomerases / metabolism
  • Animals
  • Carbohydrate Epimerases / metabolism
  • Carbon Dioxide / metabolism
  • Carbon Radioisotopes / metabolism
  • Carboxylic Ester Hydrolases / metabolism
  • Cytoplasm / enzymology
  • Enzyme Inhibitors / pharmacology
  • Glucose / metabolism
  • Glucosephosphate Dehydrogenase / metabolism
  • Methylene Blue / pharmacology
  • Organelles / enzymology
  • Oxidative Stress
  • Pentose Phosphate Pathway* / drug effects
  • Phosphogluconate Dehydrogenase / metabolism
  • Transaldolase / metabolism
  • Transketolase / metabolism
  • Trypanosoma cruzi / drug effects
  • Trypanosoma cruzi / metabolism*

Substances

  • Carbon Radioisotopes
  • Enzyme Inhibitors
  • Carbon Dioxide
  • Phosphogluconate Dehydrogenase
  • Glucosephosphate Dehydrogenase
  • Transketolase
  • Transaldolase
  • Carboxylic Ester Hydrolases
  • 6-phosphogluconolactonase
  • Carbohydrate Epimerases
  • ribulosephosphate 3-epimerase
  • Aldose-Ketose Isomerases
  • ribosephosphate isomerase
  • Glucose
  • Methylene Blue