Evidence map›Paper›PMID 22684278›Full record

ArticleGenome research2012

Dynamic transitions in RNA polymerase II density profiles during transcription termination.

Ana Rita Grosso, Sérgio Fernandes de Almeida, José Braga, Maria Carmo-Fonseca

Open access · bronzeAbstract read
In one paragraph

Article in Genome research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

32 citing papers in PubMed, 49 citations in OpenAlex.

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  13. Alternative polyadenylation of mRNA precursors.Nature reviews. Molecular cell biology · 2017
    Review
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  15. Article
  16. Article
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  18. Genome-wide modeling of transcription kinetics reveals patterns of RNA production delays.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  19. Article
  20. Article
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

4 authors at 2 institutions in 1 country.

Ana Rita GrossoInstituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal.
Sérgio Fernandes de Almeida
José Braga
Maria Carmo-Fonseca
University of Lisbon · PTUniversidade Católica Portuguesa · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Eukaryotic protein-coding genes are transcribed by RNA polymerase II (RNAPII) through a cycle composed of three main phases: initiation, elongation, and termination. Recent studies using chromatin immunoprecipitation coupled to high-throughput sequencing suggest that the density of RNAPII molecules is higher at the 3'-end relative to the gene body. Here we show that this view is biased due to averaging density profiles for "metagene" analysis. Indeed, the majority of genes exhibit little, if any, detectable accumulation of polymerases during transcription termination. Compared with genes with no enrichment, genes that accumulate RNAPII at the 3'-end are shorter, more frequently contain the canonical polyadenylation [poly(A)] signal AATAAA and G-rich motifs in the downstream sequence element, and have higher levels of expression. In 1% to 4% of actively transcribing genes, the RNAPII enriched at the 3'-end is phosphorylated on Ser5, and we provide evidence suggesting that these genes have their promoter and terminator regions juxtaposed. We also found a striking correlation between RNAPII accumulation and nucleosome organization, suggesting that the presence of nucleosomes after the poly(A) site induces pausing of polymerases, leading to their accumulation. Yet we further observe that nucleosome occupancy at the 3'-end of genes is dynamic and correlates with RNAPII density. Taken together, our results provide novel insight to transcription termination, a fundamental process that remains one of the least understood stages of the transcription cycle.

Indexed as

Genome, HumanTranscription Termination, GeneticAnimalsCD4-Positive T-LymphocytesComputer SimulationHigh-Throughput Nucleotide SequencingHumansLymphocyte ActivationMCF-7 CellsMiceNucleosomesPhosphorylationPoly APolyadenylationPromoter Regions, GeneticRNA Polymerase IINucleosomesPoly ARNA Polymerase II

Identifiers

PMID22684278
PMCPMC3409258
OpenAlexW2099572450

What OpenQuestion holds

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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.