Evidence map›Paper›PMID 7537853›Full record

ArticleMolecular and cellular biology1995

Mobile group II introns of yeast mitochondrial DNA are novel site-specific retroelements.

J V Moran, S Zimmerly, R Eskes, J C Kennell, A M Lambowitz, R A Butow, P S Perlman

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

40 citing papers in PubMed, 120 citations in OpenAlex.

  1. Article
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  5. Review
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  7. The evolutionary history of Saccharomyces species inferred from completed mitochondrial genomes and revision in the 'yeast mitochondrial genetic code'.DNA research : an international journal for rapid publication of reports on genes and genomes · 2017
    Article
  8. Article
  9. Functionality ofFrontiers in molecular biosciences · 2016
    Article
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  12. Article
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  14. 2013 Curt Stern Award Address.American journal of human genetics · 2014
    Article
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  17. Article
  18. Article
  19. Review
  20. 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

7 authors at 2 institutions in 1 country.

J V MoranDepartment of Biochemistry, University of Texas Southwestern Medical Center, Dallas 75235-9038, USA.
S Zimmerly
R Eskes
J C Kennell
A M Lambowitz
R A Butow
P S Perlman
The University of Texas Southwestern Medical Center · USThe Ohio State University · US

Funding

RETROPLASMID AND GROUP II INTRON REVERSE TRANSCRIPTASESR01GM037949 · NIGMS · UNIVERSITY OF TEXAS AUSTIN · PI LAMBOWITZ, ALAN M. · 1986 to 2019
$8.6M
YEAST MITOCHONDRIAL DNA RECOMBINATIONR01GM035510 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI BUTOW, RONALD A · 1985 to 2007
$2.0M
GENETIC AND MOLECULAR STUDIES OF RNA SPLICINGR01GM031480 · NIGMS · UNIVERSITY OF TEXAS SW MED CTR/DALLAS · PI BUTOW, RONALD A · 1985 to 2004
$1.8M
NIGMS NIH HHS GM31480NIGMS NIH HHS GM35510NIGMS NIH HHS GM37949
6 · The paper itself

Abstract

Group II introns aI1 and aI2 of the yeast mitochondrial COXI gene are mobile elements that encode an intron-specific reverse transcriptase (RT) activity. We show here that the introns of Saccharomyces cerevisiae ID41-6/161 insert site specifically into intronless alleles. The mobility is accompanied by efficient, but highly asymmetric, coconversion of nearby flanking exon sequences. Analysis of mutants shows that the aI2 protein is required for the mobility of both aI1 and aI2. Efficient mobility is dependent on both the RT activity of the aI2-encoded protein and a separate function, a putative DNA endonuclease, that is associated with the Zn2+ finger-like region of the intron reading frame. Surprisingly, there appear to be two mobility modes: the major one involves cDNAs reverse transcribed from unspliced precursor RNA; the minor one, observed in two mutants lacking detectable RT activity, appears to involve DNA level recombination. A cis-dominant splicing-defective mutant of aI2 continues to synthesize cDNAs containing the introns but is completely defective in both mobility modes, indicating that the splicing or the structure of the intron is required. Our results demonstrate that the yeast group II intron aI2 is a retroelement that uses novel mobility mechanisms.

Indexed as

RetroelementsAmino Acid SequenceBase SequenceCrosses, GeneticDNA, FungalDNA, MitochondrialGenes, FungalGenetic MarkersIntronsMolecular Sequence DataMutagenesis, Site-DirectedRNA-Directed DNA PolymeraseSaccharomyces cerevisiaeDNA, FungalDNA, MitochondrialGenetic MarkersRetroelementsRNA-Directed DNA Polymerase

Identifiers

PMID7537853
PMCPMC230514
OpenAlexW2117797684

What OpenQuestion holds

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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.