Evidence map›Paper›PMID 8861964›Full record

ArticleThe EMBO journal1996

Transcriptional pulse-chase analysis reveals a role for a novel snRNP-associated protein in the manufacture of spliceosomal snRNPs.

S M Noble, C Guthrie

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

30 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. A unique mechanism of snRNP core assembly.Nature communications · 2025
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  9. The spliceosome assembly factor GEMIN2 attenuates the effects of temperature on alternative splicing and circadian rhythms.Proceedings of the National Academy of Sciences of the United States of America · 2015
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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

2 authors at 1 institution in 1 country.

S M NobleDepartment of Biochemistry and Biophysics, University of California, San Francisco 94143, USA.
C Guthrie
University of California, San Francisco · US

Funding

BIOSYNTHESIS OF RNASR01GM021119 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GUTHRIE, CHRISTINE · 1985 to 2015
$12.9M
BIOSYNTHESIS OF RNASR37GM021119 · NIGMS · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI GUTHRIE, CHRISTINE · 1990 to 1999
–
NIGMS NIH HHS GM21119
6 · The paper itself

Abstract

Vertebrate spliceosomal snRNAs associate with a conserved set of proteins, the Sm proteins, via a conserved RNA sequence, the Sm site. Assembly of this complex is required for the accumulation of stable snRNPs, hypermethylation of the 5' cap structure and nuclear import of the resultant particles. The function of individual core snRNP proteins is poorly understood, in part because of the difficulty of selectively inactivating individual polypeptides in vivo. Using a transcriptional pulse-chase method we have defined for the first time the steps of snRNP biogenesis in Saccharomyces cerevisiae. We describe a novel component of spliceosomal snRNPs, Brr1, which is distinct in sequence from Sm core proteins and yet which shares many of their properties, as well as a genetic interaction with the yeast homolog of Sm D1 core protein. Through a kinetic analysis of snRNP formation in wild-type and brr1 mutant cells we demonstrate specific defects in a subset of steps in the brr1 mutant: newly synthesized snRNAs are destabilized and 3'-end processing is slowed, whereas the cap hypermethylation reaction is unaffected. Notably, the stability of mature particles, as measured by promoter shut-off experiments, is normal in the absence of the Brr1 snRNP protein.

Indexed as

Gene Expression Regulation, FungalGenes, FungalSaccharomyces cerevisiae ProteinsTranscription, GeneticAmino Acid SequenceCold TemperatureFungal ProteinsMolecular Sequence DataPromoter Regions, GeneticRibonucleoproteins, Small NuclearRNA, FungalRNA, Small NuclearSaccharomyces cerevisiaeSpliceosomesBRR1 protein, S cerevisiaeFungal ProteinsRibonucleoproteins, Small NuclearRNA, FungalRNA, Small NuclearSaccharomyces cerevisiae Proteins

Identifiers

PMID8861964
PMCPMC452161
OpenAlexW1483737232

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.