Evidence map›Paper›PMID 19667074›Full record

ArticleMolecular and cellular biology2009

Coupled RNA processing and transcription of intergenic primary microRNAs.

Monica Ballarino, Francesca Pagano, Erika Girardi, Mariangela Morlando, Davide Cacchiarelli, Marcella Marchioni, Nicholas J Proudfoot, Irene Bozzoni

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
3.4field-weighted citation impact, top 7% of its field
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

72 citing papers in PubMed, 112 citations in OpenAlex.

  1. Molecular Analysis of miRNA Stability and Decay Dynamics by Northern Blot.Methods in molecular biology (Clifton, N.J.) · 2026
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  8. Parameters of clustered suboptimal miRNA biogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  9. Extracellular Vesicle MicroRNA in the Kidney.Comprehensive Physiology · 2023
    Article
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  11. Review
  12. Article
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  15. Article
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12 more citing papers are in PubMed but not listed here.

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

8 authors at 3 institutions in 2 countries.

Monica BallarinoUniversity of Rome La Sapienza, P.le A. Moro 5, 00185 Rome, Italy.
Francesca Pagano
Erika Girardi
Mariangela Morlando
Davide Cacchiarelli
Marcella Marchioni
Nicholas J Proudfoot
Irene Bozzoni
Istituto Pasteur · ITSapienza University of Rome · ITUniversity of Oxford · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

The first step in microRNA (miRNA) biogenesis occurs in the nucleus and is mediated by the Microprocessor complex containing the RNase III-like enzyme Drosha and its cofactor DGCR8. Here we show that the 5'-->3' exonuclease Xrn2 associates with independently transcribed miRNAs and, in combination with Drosha processing, attenuates transcription in downstream regions. We suggest that, after Drosha cleavage, a torpedo-like mechanism acts on nascent long precursor miRNAs, whereby Xrn2 exonuclease degrades the RNA polymerase II-associated transcripts inducing its release from the template. While involved in primary transcript termination, this attenuation effect does not restrict clustered miRNA expression, which, in the majority of cases, is separated by short spacers. We also show that transcripts originating from a miRNA promoter are retained on the chromatin template and are more efficiently processed than those produced from mRNA or snRNA Pol II-dependent promoters. These data imply that coupling between transcription and processing promotes efficient expression of independently transcribed miRNAs.

Indexed as

RNA Processing, Post-TranscriptionalCell Line, TumorExoribonucleasesHeLa CellsHumansMicroRNAsPromoter Regions, GeneticProteinsRibonuclease IIIRNA-Binding ProteinsRNA, MessengerRNA Polymerase IIRNA, Small NuclearDGCR8 protein, humanDROSHA protein, humanExoribonucleasesMicroRNAsProteinsRibonuclease IIIRNA-Binding ProteinsRNA, MessengerRNA Polymerase IIRNA, Small NuclearXRN2 protein, human

Identifiers

PMID19667074
PMCPMC2756881
OpenAlexW2009293014

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.