Evidence map›Paper›PMID 26275623›Full record

ArticleGenome research2015

GC skew defines distinct RNA polymerase pause sites in CpG island promoters.

Wendy A Kellner, Joshua S K Bell, Paula M Vertino

Abstract read
In one paragraph

Article in Genome research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Wendy A KellnerDepartment of Radiation Oncology, Emory University School of Medicine, Atlanta, Georgia 30322, USA;
Joshua S K BellDepartment of Radiation Oncology, Emory University School of Medicine, Atlanta, Georgia 30322, USA;
Paula M VertinoDepartment of Radiation Oncology, Emory University School of Medicine, Atlanta, Georgia 30322, USA; Winship Cancer Institute of Emory University, Atlanta, Georgia 30322, USA.

Funding

GENESIS AND CONSEQUENCES OF ABERRANT DNA METHYLATIONR01CA077337 · NCI · EMORY UNIVERSITY · PI VERTINO, PAULA M. · 1998 to 2016
$3.4M
Defining Genomic Signatures for Aberrant DNA Methylation in Human CancersR01CA132065 · NCI · EMORY UNIVERSITY · PI VERTINO, PAULA M. · 2009 to 2013
$1.5M
DNA demethylation and the reprogramming of transcriptional dynamicsF31CA186676 · NCI · EMORY UNIVERSITY · PI BELL, JOSHUA STEVEN · 2014 to 2016
$129k
NCI NIH HHS 5F31CA186676NCI NIH HHS 5R01 CA077337NCI NIH HHS 5R01 CA132065NCI NIH HHS F31 CA186676NCI NIH HHS R01 CA077337NCI NIH HHS R01 CA132065
6 · The paper itself

Abstract

CpG islands (CGIs) are associated with over half of human gene promoters and are characterized by a unique chromatin environment and high levels of bidirectional transcriptional activity relative to surrounding genomic regions, suggesting that RNA polymerase (Pol II) progression past the CGI boundaries is restricted. Here we describe a novel transcriptional regulatory step wherein Pol II encounters an additional barrier to elongation distinct from the promoter-proximal pause and occurring at the downstream boundary of the CGI domain. For most CGI-associated promoters, Pol II exhibits a dominant pause at either the promoter-proximal or this distal site that correlates, both in position and in intensity, with local regions of high GC skew, a sequence feature known to form unique secondary structures. Upon signal-induced gene activation, long-range enhancer contacts at the dominant pause site are selectively enhanced, suggesting a new role for enhancers at the downstream pause. These data point to an additional level of control over transcriptional output at a subset of CGI-associated genes that is linked to DNA sequence and the integrity of the CGI domain.

Indexed as

Base CompositionPromoter Regions, GeneticCell Line, TumorChromatinCpG IslandsDNA MethylationGenome, HumanHumansMCF-7 CellsRNA Polymerase IISequence Analysis, DNATranscriptional ActivationChromatinRNA Polymerase II

Identifiers

PMID26275623
PMCPMC4617957

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.