Evidence map›Paper›PMID 26721932›Full record

ArticleHuman molecular genetics2016

Short peptides from leucyl-tRNA synthetase rescue disease-causing mitochondrial tRNA point mutations.

Elena Perli, Annarita Fiorillo, Carla Giordano, Annalinda Pisano, Arianna Montanari, Paola Grazioli, Antonio F Campese, Patrizio Di Micco, Helen A Tuppen, Ilaria Genovese and 6 more

Open access · bronzeAbstract read
In one paragraph

Article in Human molecular genetics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.4field-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

15 citing papers in PubMed, 25 citations in OpenAlex.

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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

16 authors at 1 institution in 1 country.

Elena PerliDepartment of Radiology, Oncology and Pathology.
Annarita FiorilloDepartment of Biochemical Sciences "A. Rossi Fanelli".
Carla GiordanoDepartment of Radiology, Oncology and Pathology.
Annalinda PisanoDepartment of Radiology, Oncology and Pathology.
Arianna MontanariDepartment of Biology and Biotechnologies 'Charles Darwin' and Pasteur Institute-Cenci Bolognetti Foundation, Rome 00161, Italy.
Paola GrazioliDepartment of Molecular Medicine, Sapienza University of Rome, Rome 00161, Italy.
Antonio F CampeseDepartment of Molecular Medicine, Sapienza University of Rome, Rome 00161, Italy.
Patrizio Di MiccoDepartment of Biochemical Sciences "A. Rossi Fanelli".
Helen A TuppenWellcome Trust Center for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne NE1 7RU, UK and.
Ilaria GenoveseDepartment of Biochemical Sciences "A. Rossi Fanelli".
Elena PoserDepartment of Biochemical Sciences "A. Rossi Fanelli".
Carmela PreziusoDepartment of Radiology, Oncology and Pathology.
Robert W TaylorWellcome Trust Center for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne NE1 7RU, UK and.
Veronica MoreaNational Research Council of Italy, Institute of Molecular Biology and Pathology, Rome 00185, Italy.
Gianni ColottiNational Research Council of Italy, Institute of Molecular Biology and Pathology, Rome 00185, Italy giulia.damati@uniroma1.it gianni.colotti@uniroma1.it.
Giulia d'AmatiDepartment of Radiology, Oncology and Pathology, Pasteur Institute-Cenci Bolognetti Foundation, Rome 00161, Italy, giulia.damati@uniroma1.it gianni.colotti@uniroma1.it.
Sapienza University of Rome · IT

Funding

Medical Research Council G0601943Medical Research Council MR/K000608/1Telethon GGP13097Wellcome TrustWellcome Trust 096919/Z/11/Z
6 · The paper itself

Abstract

Mutations in mitochondrial (mt) genes coding for mt-tRNAs are responsible for a range of syndromes, for which no effective treatment is available. We recently showed that the carboxy-terminal domain (Cterm) of human mt-leucyl tRNA synthetase rescues the pathologic phenotype associated either with the m.3243A>G mutation in mt-tRNA(Leu(UUR)) or with mutations in the mt-tRNA(Ile), both of which are aminoacylated by Class I mt-aminoacyl-tRNA synthetases (mt-aaRSs). Here we show, by using the human transmitochondrial cybrid model, that the Cterm is also able to improve the phenotype caused by the m.8344A>G mutation in mt-tRNA(Lys), aminoacylated by a Class II aaRS. Importantly, we demonstrate that the same rescuing ability is retained by two Cterm-derived short peptides, β30_31 and β32_33, which are effective towards both the m.8344A>G and the m.3243A>G mutations. Furthermore, we provide in vitro evidence that these peptides bind with high affinity wild-type and mutant human mt-tRNA(Leu(UUR)) and mt-tRNA(Lys), and stabilize mutant mt-tRNA(Leu(UUR)). In conclusion, we demonstrate that small Cterm-derived peptides can be effective tools to rescue cellular defects caused by mutations in a wide range of mt-tRNAs.

Indexed as

Point MutationAmino Acid SequenceAmino Acyl-tRNA SynthetasesApoptosisCell Line, TumorCell ProliferationGene ExpressionHumansMELAS SyndromeMERRF SyndromeMitochondriaModels, MolecularMolecular Sequence DataOsteoblastsPeptidesPhenotypeAmino Acyl-tRNA SynthetasesLARS2 protein, humanPeptidesRNA, Transfer, LeuRNA, Transfer, Lys

Identifiers

PMID26721932
PMCPMC4754043
OpenAlexW2285357182

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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.