Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=27550811
&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\27550811
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Mol+Cell+Biol
2016 ; 36
(22
): 2768-2781
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Combined Action of Histone Reader Modules Regulates NuA4 Local Acetyltransferase
Function but Not Its Recruitment on the Genome
#MMPMID27550811
Steunou AL
; Cramet M
; Rossetto D
; Aristizabal MJ
; Lacoste N
; Drouin S
; Côté V
; Paquet E
; Utley RT
; Krogan N
; Robert F
; Kobor MS
; Côté J
Mol Cell Biol
2016[Nov]; 36
(22
): 2768-2781
PMID27550811
show ga
Recognition of histone marks by reader modules is thought to be at the heart of
epigenetic mechanisms. These protein domains are considered to function by
targeting regulators to chromosomal loci carrying specific histone modifications.
This is important for proper gene regulation as well as propagation of epigenetic
information. The NuA4 acetyltransferase complex contains two of these reader
modules, an H3K4me3-specific plant homeodomain (PHD) within the Yng2 subunit and
an H3K36me2/3-specific chromodomain in the Eaf3 subunit. While each domain showed
a close functional interaction with the respective histone mark that it
recognizes, at the biochemical level, genetic level (as assessed with epistatic
miniarray profile screens), and phenotypic level, cells with the combined loss of
both readers showed greatly enhanced phenotypes. Chromatin immunoprecipitation
coupled with next-generation sequencing experiments demonstrated that the Yng2
PHD specifically directs H4 acetylation near the transcription start site of
highly expressed genes, while Eaf3 is important downstream on the body of the
genes. Strikingly, the recruitment of the NuA4 complex to these loci was not
significantly affected. Furthermore, RNA polymerase II occupancy was decreased
only under conditions where both PHD and chromodomains were lost, generally in
the second half of the gene coding regions. Altogether, these results argue that
methylated histone reader modules in NuA4 are not responsible for its recruitment
to the promoter or coding regions but, rather, are required to orient its
acetyltransferase catalytic site to the methylated histone 3-bearing nucleosomes
in the surrounding chromatin, cooperating to allow proper transition from
transcription initiation to elongation.