Full Paper
Live-Cell Studies of p300/CBP Histone Acetyltransferase Activity and Inhibition
Article first published online: 7 SEP 2012
DOI: 10.1002/cbic.201200381
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Dancy, B. M., Crump, N. T., Peterson, D. J., Mukherjee, C., Bowers, E. M., Ahn, Y.-H., Yoshida, M., Zhang, J., Mahadevan, L. C., Meyers, D. J., Boeke, J. D. and Cole, P. A. (2012), Live-Cell Studies of p300/CBP Histone Acetyltransferase Activity and Inhibition. ChemBioChem, 13: 2113–2121. doi: 10.1002/cbic.201200381
Publication History
- Issue published online: 18 SEP 2012
- Article first published online: 7 SEP 2012
- Manuscript Received: 8 JUN 2012
Funded by
- National Institutes of Health. Grant Numbers: U54-RR020839, GM62437, R01-DK073368
Keywords:
- drug design;
- enzymes;
- FRET;
- histone H4;
- protein modifications
Abstract
Histone acetyltransferase enzymes (HATs) are important therapeutic targets, but there are few cell-based assays available for evaluating the pharmacodynamics of HAT inhibitors. Here we present the application of a FRET-based reporter, Histac, in live-cell studies of p300/CBP HAT inhibition, by both genetic and pharmacologic disruption. shRNA knockdown of p300/CBP led to increased Histac FRET, thus suggesting a role for p300/CBP in the acetylation of the histone H4 tail. Additionally, we describe a new p300/CBP HAT inhibitor, C107, and show that it can also increase cellular Histac FRET. Taken together, these studies provide a live-cell strategy for identifying and evaluating p300/CBP inhibitors.

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