Evidence map›Paper›PMID 18378697›Full record

ArticleMolecular and cellular biology2008

Human U2 snRNA genes exhibit a persistently open transcriptional state and promoter disassembly at metaphase.

Thomas Pavelitz, Arnold D Bailey, Christopher P Elco, Alan M Weiner

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.1field-weighted citation impact, top 44% 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

12 citing papers in PubMed, 14 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Thomas PavelitzUniversity of Washington, Department of Biochemistry, School of Medicine, Seattle, WA 98195-7350, USA.
Arnold D Bailey
Christopher P Elco
Alan M Weiner
University of Washington · US

Funding

GENOMIC PLASTICITY IN THE HUMAN U2 SNRNA GENE CLUSTERR01GM041624 · NIGMS · YALE UNIVERSITY · PI WEINER, ALAN M · 1989 to 2006
$2.0M
NIGMS NIH HHS GM-41624NIGMS NIH HHS R01 GM041624
6 · The paper itself

Abstract

In mammals, small multigene families generate spliceosomal U snRNAs that are nearly as abundant as rRNA. Using the tandemly repeated human U2 genes as a model, we show by footprinting with DNase I and permanganate that nearly all sequences between the enhancer-like distal sequence element and the initiation site are protected during interphase whereas the upstream half of the U2 snRNA coding region is exposed. We also show by chromatin immunoprecipitation that the SNAPc complex, which binds the TATA-like proximal sequence element, is removed at metaphase but remains bound under conditions that induce locus-specific metaphase fragility of the U2 genes, such as loss of CSB, BRCA1, or BRCA2 function, treatment with actinomycin D, or overexpression of the tetrameric p53 C terminus. We propose that the U2 snRNA promoter establishes a persistently open state to facilitate rapid reinitiation and perhaps also to bypass TFIIH-dependent promoter melting; this open state would then be disassembled to allow metaphase chromatin condensation.

Indexed as

Gene Expression RegulationPromoter Regions, GeneticTranscription, GeneticBase SequenceBRCA1 ProteinBRCA2 ProteinCell LineChromatin ImmunoprecipitationChromosome FragilityDeoxyribonuclease IDNA DamageDNA FootprintingDNA HelicasesDNA Repair EnzymesHumansManganese CompoundsBRCA1 ProteinBRCA2 ProteinDeoxyribonuclease IDNA HelicasesDNA Repair EnzymesERCC6 protein, humanManganese CompoundsOxidespermanganic acidPoly-ADP-Ribose Binding ProteinsRNA, Small NuclearSNAPC protein complex, humanTranscription FactorsTranscription Factor TFIIHU2 small nuclear RNA

Identifiers

PMID18378697
PMCPMC2423282
OpenAlexW2169059692

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.