2,3-Dihydroxy-quinoxaline induces ATPase activity of Herpes Simplex Virus thymidine kinase
2014
Abstract 2,3-Dihydroxy-quinoxaline, a small molecule that promotes ATPase catalytic activity of Herpes Simplex Virus thymidine kinase (HSV-TK), was identified by virtual screening. This compound competitively inhibited HSV-TK catalyzed phosphorylation of acyclovir with K i = 250 μM (95% CI: 106–405 μM) and dose-dependently increased the rate of the ATP hydrolysis with K M = 112 μM (95% CI: 28–195 μM). The kinetic scheme consistent with this experimental data is proposed.
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