Evidence map›Paper›PMID 8007968›Full record

ArticleMolecular and cellular biology1994

T7 RNA polymerase-dependent expression of COXII in yeast mitochondria.

J L Pinkham, A M Dudley, T L Mason

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

22 citing papers in PubMed, 37 citations in OpenAlex.

  1. Molecular biology of the cell · 2021
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  15. A prokaryote and human tRNA synthetase provide an essential RNA splicing function in yeast mitochondria.Proceedings of the National Academy of Sciences of the United States of America · 2000
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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

3 authors at 1 institution in 1 country.

J L PinkhamDepartment of Biochemistry and Molecular Biology, University of Massachusetts, Amherst 01003-4505.
A M Dudley
T L Mason
University of Massachusetts Amherst · US

Funding

REGULATION OF MN SUPEROXIDE DISMUTASE IN YEASTR29GM046456 · NIGMS · UNIVERSITY OF MASSACHUSETTS AMHERST · PI PINKHAM, JENNIFER L · 1992 to 1996
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NIGMS NIH HHS GM46456
6 · The paper itself

Abstract

An in vivo expression system has been developed for controlling the transcription of individual genes in the mitochondrial genome of Saccharomyces cerevisiae. The bacteriophage T7 RNA polymerase (T7Pol), fused to the COXIV mitchondrial import peptide and expressed under the control of either the GAL1 or the ADH1 promoter, efficiently transcribes a target gene, T7-COX2, in the mitochondrial genome. Cells bearing the T7-COX2 gene, but lacking wild-type COX2, require T7Pol for respiration. Functional expression of T7-COX2 is completely dependent on the COX2-specific translational activator Pet111p, despite additional nucleotides at the 5' end of the T7-COX2 transcript. Expression of mitochondrion-targeted T7Pol at high levels from the GAL1 promoter has no detectable effect on mitochondrial function in rho+ cells lacking the T7-COX2 target gene, but in cells with T7-COX2 integrated into the mitochondrial genome, an equivalent level of T7Pol expression causes severe respiratory deficiency. In comparison with wild-type COX2 expression, steady-state levels of T7-COX2 mRNA increase fivefold when transcription is driven by T7Pol expressed from the ADH1 promoter, yet COXII protein levels and cellular respiration rates decrease by about 50%. This discoordinate expression of mRNA and protein provides additional evidence for posttranscriptional control of COX2 expression.

Indexed as

Gene ExpressionGenes, FungalBacteriophage T7Base SequenceConsensus SequenceDNA-Directed RNA PolymerasesDNA PrimersElectron Transport Complex IVGenetic VectorsGenome, FungalMitochondriaMolecular Sequence DataPromoter Regions, GeneticRecombinant Fusion ProteinsRestriction MappingSaccharomyces cerevisiaebacteriophage T7 RNA polymeraseDNA-Directed RNA PolymerasesDNA PrimersElectron Transport Complex IVRecombinant Fusion ProteinsViral Proteins

Identifiers

PMID8007968
PMCPMC358837
OpenAlexW2149021307

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.