Cited by 234Mitochondrial Function and PathologyRNA and protein synthesis mechanismsATP Synthase and ATPases Research

Impairment of mitochondrial transcription termination by a point mutation associated with the MELAS subgroup of mitochondrial encephalomyopathies

Hess, John F., Parisi, Melissa A., Bennett, Jeffrey L., Clayton, David A.·1991·Nature

Abstract

Defects in mitochondrial DNA (mtDNA) are associated with several different human diseases, including the mitochondrial encephalomyopathies. The mutations include deletions but also duplications and point mutations. Individuals with MELAS (mitochondrial myopathy, encephalopathy, lactic acidosis and stroke-like episodes) carry a common A-to-G substitution in a highly conserved portion of the gene for transfer RNA(Leu(UUR)). Although the MELAS mutation may be comparable to the defect in the tRNA(Lys) gene associated with MERRF (myoclonus epilepsy associated with ragged-red fibres), it is also embedded in the middle of a tridecamer sequence necessary for the formation of the 3' ends of 16S ribosomal RNA in vitro. We found that the MELAS mutation results in severe impairment of 16S rRNA transcription termination, which correlates with a reduced affinity of the partially purified termination protein for the MELAS template. This suggests that the molecular defect in MELAS is the inability to produce the correct type and quantity of rRNA relative to other mitochondrial gene products.

Integrity signals

Registry

Crossref · 10.1038/351236a0

Cites

19 of 19 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • m.3243A N G impairs correct transcription of 16S mt-rRNA by interfering with a transcription termination site, causing accumulation of RNA19.

    “Correct transcription of 16S mt-rRNA is impaired by the common mt-tRNA Leu(UUR) m.3243A N G mutation, which interferes with a transcription termination site located at the boundary of the 16S mt-rRNA and mt-tRNA Leu(UUR) genes, causing accumulation of an unprocessed RNA intermediate (RNA19) including 16S mt-rRNA, mt-tRNA Leu(UUR) and MTND1 [191][192][193].”

    From Mitochondrial DNA mutations and human disease (2010) · cites this paper as [191]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Hess, J. F., Parisi, M. A., Bennett, J. L., & Clayton, D. A.
Affiliations
Stanford Medicine (US)
Venue
Nature
Published
1991-05
Volume
351
Issue
6323
Pages
236-239
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1970693337
Cited by
234
References
18
Citations by year
2026: 2 · 2025: 1 · 2023: 3 · 2022: 3 · 2021: 2 · 2020: 5 · 2019: 6 · 2018: 2 · 2017: 4 · 2016: 1 · 2015: 2 · 2014: 6 · 2013: 2 · 2012: 2
FWCI
8.07
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › ATP Synthase and ATPases Research
Keywords
MELAS, mitochondrial encephalomyopathy, mitochondrial DNA point mutations, tRNA-Leu(UUR), 3' end formation, mitochondrial myopathy, lactic acidosis, stroke-like episodes, MERRF
MeSH terms
Base Sequence, Brain Diseases, Chromosome Mapping, DNA Mutational Analysis, DNA, Mitochondrial, Humans, Mitochondria, Muscle, Molecular Sequence Data, Mutation, Peptide Termination Factors, RNA, Ribosomal, RNA, Transfer, Transcription, Genetic, Blotting, Western, In Vitro Techniques

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review