Stuchlík Stanislav, Turna Ján, Miko Milan
Department of Molecular Biology, Comenius University, Mlynskádolina B-2, 84215 Bratislava, Slovakia.
J Pharm Pharmacol. 2005 May;57(5):657-9. doi: 10.1211/0022357055858.
The inhibitory effect of oracin on the activities of topoisomerases I and II isolated from the nuclei of mice liver tissue was studied. This drug showed a 100% inhibitory effect at 5 microM and 50% inhibition at 1 microM on topoisomerase II activity, while the activity of topoisomerase I at these concentrations was not inhibited.