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Histone Modification Screening using Liquid Chromatography, Trapped Ion Mobility Spectrometry, and Time-Of-Flight Mass Spectrometry
Published on: January 12, 2024
Screening for topoisomerase I binding compounds by high-performance liquid chromatography-mass spectrometry
Hong Zhang1, Qing Gu, Xinle Liang
1Department of Food Science, Hangzhou University of Commerce, Hangzhou, People's Republic of China.
Abstract:
A new rapid compound screening approach for topoisomerase I binding activity is presented. DNA topoisomerase I is used as a target protein to capture binding compounds from a mixture of combinatorial compounds by bioaffinity ultrafiltration. Using high-performance liquid chromatography combined with electrospray ionization mass spectrometry, small-molecule active compounds were identified. We also have successfully applied this method to identifying compounds from cells grown in culture.

