Evidence map›Paper›PMID 23271729›Full record

ArticleThe Journal of biological chemistry2013

Subcomplexes of ancestral respiratory complex I subunits rapidly turn over in vivo as productive assembly intermediates in Arabidopsis.

Lei Li, Clark J Nelson, Chris Carrie, Ryan M R Gawryluk, Cory Solheim, Michael W Gray, James Whelan, A Harvey Millar

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
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

16 citing papers in PubMed.

  1. Review
  2. Lessons from the deep: mechanisms behind diversification of eukaryotic protein complexes.Biological reviews of the Cambridge Philosophical Society · 2023
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  16. 3D Gel Map of Arabidopsis Complex I.Frontiers in plant science · 2013
    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

8 authors.

Lei LiAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Western Australia, Australia.
Clark J Nelson
Chris Carrie
Ryan M R Gawryluk
Cory Solheim
Michael W Gray
James Whelan
A Harvey Millar

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Subcomplexes of mitochondrial respiratory complex I (CI; EC 1.6.5.3) are shown to turn over in vivo, and we propose a role in an ancestral assembly pathway. By progressively labeling Arabidopsis cell cultures with (15)N and isolating mitochondria, we have identified CI subcomplexes through differences in (15)N incorporation into their protein subunits. The 200-kDa subcomplex, containing the ancestral γ-carbonic anhydrase (γ-CA), γ-carbonic anhydrase-like, and 20.9-kDa subunits, had a significantly higher turnover rate than intact CI or CI+CIII(2). In vitro import of precursors for these CI subunits demonstrated rapid generation of subcomplexes and revealed that their specific abundance varied when different ancestral subunits were imported. Time course studies of precursor import showed the further assembly of these subcomplexes into CI and CI+CIII(2), indicating that the subcomplexes are productive intermediates of assembly. The strong transient incorporation of new subunits into the 200-kDa subcomplex in a γ-CA mutant is consistent with this subcomplex being a key initiator of CI assembly in plants. This evidence alongside the pattern of coincident occurrence of genes encoding these particular proteins broadly in eukaryotes, except for opisthokonts, provides a framework for the evolutionary conservation of these accessory subunits and evidence of their function in ancestral CI assembly.

Indexed as

Gene Expression Regulation, PlantArabidopsisBiochemistryCarbonic AnhydrasesElectron TransportElectron Transport Complex IEnergy MetabolismMitochondriaMitochondrial ProteinsPlant Physiological PhenomenaProtein BindingProtein Structure, TertiaryProtein TransportProteomicsProtoplastsSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationCarbonic AnhydrasesElectron Transport Complex IMitochondrial Proteins

Identifiers

PMID23271729
PMCPMC3581425

What OpenQuestion holds

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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.