Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=27701403
&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 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 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\27701403
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Nat+Biotechnol
2016 ; 34
(11
): 1180-1190
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Genome-scale high-resolution mapping of activating and repressive nucleotides in
regulatory regions
#MMPMID27701403
Ernst J
; Melnikov A
; Zhang X
; Wang L
; Rogov P
; Mikkelsen TS
; Kellis M
Nat Biotechnol
2016[Nov]; 34
(11
): 1180-1190
PMID27701403
show ga
Massively parallel reporter assays (MPRAs) enable nucleotide-resolution
dissection of transcriptional regulatory regions, such as enhancers, but only few
regions at a time. Here we present a combined experimental and computational
approach, Systematic high-resolution activation and repression profiling with
reporter tiling using MPRA (Sharpr-MPRA), that allows high-resolution analysis of
thousands of regions simultaneously. Sharpr-MPRA combines dense tiling of
overlapping MPRA constructs with a probabilistic graphical model to recognize
functional regulatory nucleotides, and to distinguish activating and repressive
nucleotides, using their inferred contribution to reporter gene expression. We
used Sharpr-MPRA to test 4.6 million nucleotides spanning 15,000 putative
regulatory regions tiled at 5-nucleotide resolution in two human cell types. Our
results recovered known cell-type-specific regulatory motifs and evolutionarily
conserved nucleotides, and distinguished known activating and repressive motifs.
Our results also showed that endogenous chromatin state and DNA accessibility are
both predictive of regulatory function in reporter assays, identified retroviral
elements with activating roles, and uncovered 'attenuator' motifs with repressive
roles in active chromatin.