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2018 ; 5
(1
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
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English Wikipedia
Histone deacetylase inhibitor-based chromatin precipitation for identification of
targeted genomic loci
#MMPMID29682593
Hanigan TW
; Danes JM
; Taha TY
; Frasor J
; Petukhov PA
J Biol Methods
2018[]; 5
(1
): ä PMID29682593
show ga
Histone deacetylase (HDAC) catalyzes the removal of acetyl marks from histones,
effectively regulating gene expression. Genome wide chromatin immunoprecipitation
(ChIP) studies have shown HDACs are present on numerous active and repressed
genes. However, HDAC inhibitors (HDACi) only regulate a small subset of this
population in a cell type dependent fashion. To determine genomic locations
directly targeted by HDACi, we developed a chromatin precipitation method using a
photoreactive HDAC inhibitor probe (photomate). We validate this method by
analyzing several canonical HDACi regulated genes, CDKN1A and FOSL1, and compare
it to traditional ChIP using HDAC1 antibodies. We show that HDACi target HDACs
bound at the promoter regions but not gene bodies, differing from HDAC1
antibody-based ChIP in the case of CDKN1A. This approach is anticipated to be
useful for genome wide studies to identify the subset of genes directly regulated
by an HDACi in a given cell type.