ArticleParasitology research2016
Molecular and biochemical characterization of Eimeria tenella hexokinase.
Article in Parasitology research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 15 citations in OpenAlex.
- Quercetin as a Promising Antiprotozoan Phytochemical: Current Knowledge and Future Research Avenues.BioMed research international · 2024Review
- Released Parasite-Derived Kinases as Novel Targets for Antiparasitic Therapies.Frontiers in cellular and infection microbiology · 2022Review
- Heterologous overexpression of active hexokinases from microsporidia Nosema bombycis and Nosema ceranae confirms their ability to phosphorylate host glucose.Parasitology research · 2019Article
- Biochemical properties and subcellular localization of six members of the HXK family in maize and its metabolic contribution to embryo germination.BMC plant biology · 2019Article
Corrections and comments
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Authors and funding
12 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Hexokinase (HK) is one of the key enzymes in the glycolytic pathway that catalyzes the phosphorylation of glucose. In the present study, we cloned the HK gene from the coccidian Eimeria tenella (EtHK), expressed EtHK as a His-tagged fusion protein, and characterized its primary biochemical features. Mutagenesis confirmed that residues S159, N216, and D217 are essential or important to the EtHK catalytic activity. EtHK exhibited high affinity for D-glucose (Km = 0.67 to 0.79 mM), but was also able to utilize 2-deoxy-D-glucose (Km = 5.66 mM), D-fructose (Km = 13.76 mM), and D-mannose (Km = 25.41 mM). We also observed that quercetin and mangiferin could inhibit the EtHK enzyme activity (IC50 values = 6.52 and 85.82 μM, respectively). Among the two inhibitors, mangiferin also inhibited the growth of E. tenella in vitro (MIC50 = 0.12 μM). These observations suggest that EtHK may be explored as potential drug target, and mangiferin and its analogs may be explored for developing anti-coccidial therapeutics.
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