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| | HTS assay for inhibitors of Trypanosoma brucei hexokinase 1: IC50 determinations |
| Description: | Excerpt from MH082340 application (Dr. James Morris, Clemson University) Trypanosoma brucei, the digenic protozoan parasite that causes African sleeping sickness in man, annually infects ~500,000 people in sub-Saharan Africa, leading to 50,000-70,000 deaths per year. Glucose metabolism is essential for the parasite, with the pathogenic lifestage of the parasite, the bloodstream form (BSF), acquiring energy exclusively through glycolysis. Hexokinase (HK), the first enzyme in glycolysis, catalyses the transfer of the phosphoryl group of ATP to glucose yielding glucose-6-phosphate. Several lines of experimental evidence confirm that HK activity is essential to T. brucei. First, RNA interference (RNAi) of HK in BSF parasites is lethal (see below and (Albert et al., 2005)). Also, attempts to generate knockouts have been unsuccessful (below and (Albert et al., 2005)). Last, specific inhibitors of TbHK activity have been developed that are trypanocidal, albeit at high concentrations |
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