Evidence map›Paper›PMID 19380478›Full record

ArticleGenetics2009

A genetic screen for suppressors of a mutated 5' splice site identifies factors associated with later steps of spliceosome assembly.

Maryann Dassah, Sophie Patzek, Valerie M Hunt, Pedro E Medina, Alan M Zahler

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.5field-weighted citation impact, top 33% 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

11 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Destabilization of the human RED-SMU1 splicing complex as a basis for host-directed antiinfluenza strategy.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  7. Prp8 impacts cryptic but not alternative splicing frequency.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  8. SNRP-27, theRNA (New York, N.Y.) · 2018
    Article
  9. Article
  10. Article
  11. 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

5 authors at 1 institution in 1 country.

Maryann DassahDepartment of Molecular, Cell, and Developmental Biology and Center for Molecular Biology of RNA, University of California, Santa Cruz, California 95064, USA.
Sophie Patzek
Valerie M Hunt
Pedro E Medina
Alan M Zahler
University of California, Santa Cruz · US

Funding

UNIVERSITY OF CALIFORNIA, SANTA CRUZ IMSD PROGRAMR25GM058903 · NIGMS · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI JURICA, MELISSA S · 1999 to 2019
$12.2M
UNIV OF CAL, SANTA CRUZ, MARC HONORS UNDERGRADUATE PROT34GM007910 · NIGMS · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI ZAHLER, ALAN M · 1985 to 2020
$7.6M
REGULATION OF SPLICE SITE CHOICE IN C. ELEGANSR01GM061646 · NIGMS · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI ZAHLER, ALAN M · 2000 to 2009
$2.2M
NIGMS NIH HHS R01 GM061646NIGMS NIH HHS R01-GM061646NIGMS NIH HHS R25 GM058903NIGMS NIH HHS R25-GM058903NIGMS NIH HHS T34 GM007910NIGMS NIH HHS T34-GM007910
6 · The paper itself

Abstract

Many alleles of human disease genes have mutations within splicing consensus sequences that activate cryptic splice sites. In Caenorhabditis elegans, the unc-73(e936) allele has a G-to-U mutation at the first base of the intron downstream of exon 15, which results in an uncoordinated phenotype. This mutation triggers cryptic splicing at the -1 and +23 positions and retains some residual splicing at the mutated wild-type (wt) position. We previously demonstrated that a mutation in sup-39, a U1 snRNA gene, suppresses e936 by increasing splicing at the wt splice site. We report here the results of a suppressor screen in which we identify three proteins that function in cryptic splice site choice. Loss-of-function mutations in the nonessential splicing factor smu-2 suppress e936 uncoordination through changes in splicing. SMU-2 binds SMU-1, and smu-1(RNAi) also leads to suppression of e936. A dominant mutation in the conserved C-terminal domain of the C. elegans homolog of the human tri-snRNP 27K protein, which we have named SNRP-27, suppresses e936 uncoordination through changes in splicing. We propose that SMU-2, SMU-1, and SNRP-27 contribute to the fidelity of splice site choice after the initial identification of 5' splice sites by U1 snRNP.

Indexed as

Amino Acid SequenceAnimalsBase SequenceCaenorhabditis elegansCaenorhabditis elegans ProteinsChromosome MappingFemaleIntracellular Signaling Peptides and ProteinsMaleMolecular Sequence DataMotor ActivityMutationNerve Tissue ProteinsNuclear ProteinsRepressor ProteinsReverse Transcriptase Polymerase Chain ReactionCaenorhabditis elegans ProteinsIntracellular Signaling Peptides and ProteinsNerve Tissue ProteinsNuclear ProteinsRepressor ProteinsRibonucleoproteins, Small NuclearRibonucleoprotein, U1 Small NuclearRNA Splice SitesSmu-1 protein, C elegansSMU-2 protein, C elegansUNC-73 protein, C elegans

Identifiers

PMID19380478
PMCPMC2710154
OpenAlexW2151566807

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.