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.
Original language | English (US) |
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Pages (from-to) | 2113-2121 |
Number of pages | 9 |
Journal | ChemBioChem |
Volume | 13 |
Issue number | 14 |
DOIs | |
State | Published - Sep 24 2012 |
Keywords
- Drug design
- Enzymes
- FRET
- Histone H4
- Protein modifications
ASJC Scopus subject areas
- Biochemistry
- Molecular Medicine
- Molecular Biology
- Organic Chemistry