Evidence map›Paper›PMID 17339209›Full record

ArticleGenetics2007

Specific defects in different transcription complexes compensate for the requirement of the negative cofactor 2 repressor in Saccharomyces cerevisiae.

Lorena Peiró-Chova, Francisco Estruch

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 39% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. 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

2 authors at 1 institution in 1 country.

Lorena Peiró-ChovaDepartamento de Bioquímica y Biología Molecular, Facultad de Biología, Universidad de Valencia, 46100 Burjassot, Spain.
Francisco Estruch
Universitat de València · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Negative cofactor 2 (NC2) has been described as an essential and evolutionarily conserved transcriptional repressor, although in vitro and in vivo experiments suggest that it can function as both a positive and a negative effector of transcription. NC2 operates by interacting with the core promoter and components of the basal transcription machinery, like the TATA-binding protein (TBP). In this work, we have isolated mutants that suppress the growth defect caused by the depletion of NC2. We have identified mutations affecting components of three different complexes involved in the control of basal transcription: the mediator, TFIIH, and RNA pol II itself. Mutations in RNA pol II include both overexpression of truncated forms of the two largest subunits (Rpb1 and Rpb2) and reduced levels of these proteins. Suppression of NC2 depletion was also observed by reducing the amounts of the mediator essential components Nut2 and Med7, as well as by deleting any of the nonessential mediator components, except Med2, Med3, and Gal11 subunits. Interestingly, the Med2/Med3/Gal11 triad forms a submodule within the mediator tail. Our results support the existence of different components within the basic transcription complexes that antagonistically interact with the NC2 repressor and suggest that the correct balance between the activities of specific positive and negative components is essential for cell growth.

Indexed as

Transcription, GeneticAdenosine TriphosphatasesAllelesDNA HelicasesMutant ProteinsMutationPhosphoproteinsPromoter Regions, GeneticProtein SubunitsRepressor ProteinsRNA Polymerase IISaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsTATA-Binding Protein Associated FactorsTrans-ActivatorsTranscription FactorsAdenosine TriphosphatasesDNA Helicasesdown-regulator of transcription 1GAL10 protein, S cerevisiaeMOT1 protein, S cerevisiaeMutant ProteinsPhosphoproteinsProtein SubunitsRepressor ProteinsRNA Polymerase IISaccharomyces cerevisiae ProteinsTATA-Binding Protein Associated FactorsTrans-ActivatorsTranscription FactorsTranscription Factor TFIIBTranscription Factor TFIIDTranscription Factor TFIIH

Identifiers

PMID17339209
PMCPMC1893036
OpenAlexW1967146498

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.