Evidence map›Paper›PMID 20546574›Full record

ArticleBMC evolutionary biology2010

Evidence for an early evolutionary emergence of gamma-type carbonic anhydrases as components of mitochondrial respiratory complex I.

Ryan M R Gawryluk, Michael W Gray

Open access · goldAbstract read
In one paragraph

Article in BMC evolutionary biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

24 citing papers in PubMed, 51 citations in OpenAlex.

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  6. Using cryo-EM to understand the assembly pathway of respiratory complex I.Acta crystallographica. Section D, Structural biology · 2024
    Article
  7. Novel Drug Screening Assay forJournal of medicinal chemistry · 2024
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  9. Lessons from the deep: mechanisms behind diversification of eukaryotic protein complexes.Biological reviews of the Cambridge Philosophical Society · 2023
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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

2 authors at 1 institution in 1 country.

Ryan M R GawrylukCentre for Comparative Genomics and Evolutionary Bioinformatics, Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia B3H 1X5, Canada.
Michael W Gray
Dalhousie University · CA

Funding

Canadian Institutes of Health Research MOP-4124
6 · The paper itself

Abstract

backgroundThe complexity of mitochondrial complex I (CI; NADH:ubiquinone oxidoreductase) has increased considerably relative to the homologous complex in bacteria. Comparative analyses of CI composition in animals, fungi and land plants/green algae suggest that novel components of mitochondrial CI include a set of 18 proteins common to all eukaryotes and a variable number of lineage-specific subunits. In plants and green algae, several purportedly plant-specific proteins homologous to gamma-type carbonic anhydrases (gammaCA) have been identified as components of CI. However, relatively little is known about CI composition in the unicellular protists, the characterizations of which are essential to our understanding of CI evolution.

resultsWe have performed a tandem mass spectrometric characterization of CI from the amoeboid protozoon Acanthamoeba castellanii. Among the proteins identified were two gammaCA homologs, AcCa1 and AcCa2, demonstrating that gammaCA proteins are not specific to plants/green algae. In fact, through bioinformatics searches we detected gammaCA homologs in diverse protist lineages, and several of these homologs are predicted to possess N-terminal mitochondrial targeting peptides.

conclusionsThe detection of gammaCAs in CI of Acanthamoeba, considered to be a closer relative of animals and fungi than plants, suggests that gammaCA proteins may have been an ancestral feature of mitochondrial CI, rather than a novel, plant-specific addition. This assertion is supported by the presence of genes encoding gammaCAs in the nuclear genomes of a wide variety of eukaryotes. Together, these findings emphasize the importance of a phylogenetically broad characterization of CI for elucidating CI evolution in eukaryotes.

Indexed as

Evolution, MolecularPhylogenyAcanthamoeba castellaniiAmino Acid SequenceCarbonic AnhydrasesComputational BiologyMitochondriaMitochondrial ProteinsMolecular Sequence DataProtozoan ProteinsSequence AlignmentSequence Analysis, ProteinSequence Homology, Amino AcidCarbonic AnhydrasesMitochondrial ProteinsProtozoan Proteins

Identifiers

PMID20546574
PMCPMC2900272
OpenAlexW1974807435

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Registered trials

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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.