Evidence map›Paper›PMID 27789739›Full record

ArticlePlant physiology2016

Plant-Specific Preprotein and Amino Acid Transporter Proteins Are Required for tRNA Import into Mitochondria.

Monika W Murcha, Szymon Kubiszewski-Jakubiak, Pedro F Teixeira, Irene L Gügel, Beata Kmiec, Reena Narsai, Aneta Ivanova, Cyrille Megel, Annette Schock, Sabrina Kraus and 6 more

Open access · bronzeAbstract read
In one paragraph

Article in Plant physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.2field-weighted citation impact, top 19% 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

10 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Article
  3. Photosynthetic demands on translational machinery drive retention of redundant tRNA metabolism in plant organelles.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Cells · 2020
    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

16 authors at 2 institutions in 4 countries.

Monika W MurchaAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.); monika.murcha@uwa.edu.au.ORCID 0000-0002-3689-6158
Szymon Kubiszewski-JakubiakAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).
Pedro F TeixeiraAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).
Irene L GügelAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).ORCID 0000-0002-5475-9210
Beata KmiecAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).ORCID 0000-0002-1383-0412
Reena NarsaiAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).
Aneta IvanovaAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).
Cyrille MegelAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).
Annette SchockAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).
Sabrina KrausAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).
Oliver BerkowitzAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).ORCID 0000-0002-7671-6983
Elzbieta GlaserAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).
Katrin PhilipparAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).
Laurence Maréchal-DrouardAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).
Jürgen SollAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.).
James WhelanAustralian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley, Western Australia 6009, Australia (M.W.M., S.K.-J., A.I.); monika.murcha@uwa.edu.au.
Centre National de la Recherche Scientifique · FRAustralian Research Council · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A variety of eukaryotes, in particular plants, do not contain the required number of tRNAs to support the translation of mitochondria-encoded genes and thus need to import tRNAs from the cytosol. This study identified two Arabidopsis (Arabidopsis thaliana) proteins, Tric1 and Tric2 (for tRNA import component), which on simultaneous inactivation by T-DNA insertion lines displayed a severely delayed and chlorotic growth phenotype and significantly reduced tRNA import capacity into isolated mitochondria. The predicted tRNA-binding domain of Tric1 and Tric2, a sterile-α-motif at the C-terminal end of the protein, was required to restore tRNA uptake ability in mitochondria of complemented plants. The purified predicted tRNA-binding domain binds the T-arm of the tRNA for alanine with conserved lysine residues required for binding. T-DNA inactivation of both Tric proteins further resulted in an increase in the in vitro rate of in organello protein synthesis, which was mediated by a reorganization of the nuclear transcriptome, in particular of genes encoding a variety of proteins required for mitochondrial gene expression at both the transcriptional and translational levels. The characterization of Tric1/2 provides mechanistic insight into the process of tRNA import into mitochondria and supports the theory that the tRNA import pathway resulted from the repurposing of a preexisting protein import apparatus.

Indexed as

RNA TransportAmino Acid SequenceAmino Acid Transport SystemsArabidopsisArabidopsis ProteinsGene DeletionGene Expression ProfilingGene Expression Regulation, PlantMitochondriaMitochondrial MembranesMitochondrial ProteinsPlant LeavesProtein BindingProtein BiosynthesisProtein DomainsRNA-Binding ProteinsAmino Acid Transport SystemsArabidopsis ProteinsMitochondrial ProteinsRNA-Binding ProteinsRNA, TransferTric1 protein, ArabidopsisTric2 protein, Arabidopsis

Identifiers

PMID27789739
PMCPMC5129730
OpenAlexW2541762931

What Socratic 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 Socratic graph.