Evidence map›Paper›PMID 7525273›Full record

ArticleThe EMBO journal1994

Homing of a group II intron in yeast mitochondrial DNA is accompanied by unidirectional co-conversion of upstream-located markers.

J Lazowska, B Meunier, C Macadre

Abstract read
In one paragraph

Article in The EMBO journal, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

20 citing papers in PubMed.

  1. Comparative mitogenomic analysis ofFrontiers in physiology · 2024
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  9. The Rieske FeS protein encoded and synthesized within mitochondria complements a deficiency in the nuclear gene.Proceedings of the National Academy of Sciences of the United States of America · 2003
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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.

J LazowskaCentre de Génétique Moléculaire du CNRS, Gif-sur-Yvette, France.
B Meunier
C Macadre

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Group II introns ai1 and ai2 of the Saccharomyces cerevisiae mitochondrial COXI gene encode proteins having a dual function (maturase and reverse transcriptase) and are mobile genetic elements. By construction of adequate donor genomes, we demonstrate that each of them is self-sufficient and practises homing in the absence of homing-type endonucleases encoded by either group I introns or the ENS2 gene. Each of the S. cerevisiae group II self-mobile introns was tested for its ability to invade mitochondrial DNA (mtDNA) from two related Saccharomyces species. Surprisingly, only ai2 was observed to integrate into both genomes. The non-mobility of ai1 was clearly correlated with some polymorphic changes occurring in sequences flanking its insertion sites in the recipient mtDNAs. Importantly, studies of the behaviour of these introns in interspecific crosses demonstrate that flanking marker co-conversion accompanying group II intron homing is unidirectional and efficient only in the 3' to 5' direction towards the upstream exon. Thus, the polar co-conversion and dependence of the splicing proficiency of the intron reported previously by us are hallmarks of group II intron homing, which significantly distinguish it from the strictly DNA-based group I intron homing and strictly RNA-based group II intron transposition.

Indexed as

Genes, FungalIntronsSaccharomyces cerevisiae ProteinsBase SequenceDNA, MitochondrialDNA Transposable ElementsExonsGenetic MarkersMolecular Sequence DataRNA-Directed DNA PolymeraseSaccharomyces cerevisiaeaI2 protein, S cerevisiaeDNA, MitochondrialDNA Transposable ElementsGenetic MarkersRNA-Directed DNA PolymeraseSaccharomyces cerevisiae Proteins

Identifiers

PMID7525273
PMCPMC395437

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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.