[PDF][PDF] HATs off: selective synthetic inhibitors of the histone acetyltransferases p300 and PCAF

OD Lau, TK Kundu, RE Soccio, S Ait-Si-Ali, EM Khalil… - Molecular cell, 2000 - cell.com
OD Lau, TK Kundu, RE Soccio, S Ait-Si-Ali, EM Khalil, A Vassilev, AP Wolffe, Y Nakatani…
Molecular cell, 2000cell.com
Histone acetyltransferases (HATs) play important roles in the regulation of gene expression.
In this report, we describe the design, synthesis, and application of peptide CoA conjugates
as selective HAT inhibitors for the transcriptional coactivators p300 and PCAF. Two
inhibitors (Lys-CoA for p300 and H3-CoA-20 for PCAF) were found to be potent (IC 50≅ 0.5
μM) and selective (∼ 200-fold) in blocking p300 and PCAF HAT activities. These inhibitors
were used to probe enzymatic and transcriptional features of HAT function in several assay …
Abstract
Histone acetyltransferases (HATs) play important roles in the regulation of gene expression. In this report, we describe the design, synthesis, and application of peptide CoA conjugates as selective HAT inhibitors for the transcriptional coactivators p300 and PCAF. Two inhibitors (Lys-CoA for p300 and H3-CoA-20 for PCAF) were found to be potent (IC50 ≅ 0.5 μM) and selective (∼200-fold) in blocking p300 and PCAF HAT activities. These inhibitors were used to probe enzymatic and transcriptional features of HAT function in several assay systems. These compounds should be broadly useful as biological tools for evaluating the roles of HATs in transcriptional studies and may serve as lead agents for the development of novel antineoplastic therapeutics.
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