Related Experiment Video
Updated: Apr 19, 2026

07:24
Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing
Published on: February 10, 2023
2.1K
Mutations in mitochondrial DNA and approaches for their correction
M V Patrushev1, P A Kamenski, I O Mazunin
1Faculty of Biology, Lomonosov Moscow State University, Moscow, 119991, Russia. peter@protein.bio.msu.ru.
Biochemistry. Biokhimiia
|December 26, 2014
Summary
Mitochondrial DNA mutations cause hereditary neuromuscular diseases. This review covers new mutations, their clinical links, and emerging gene therapy strategies for suppression.
Area of Science:
- Cell Biology
- Genetics
- Neurology
Background:
- Mitochondria possess their own genome, distinct from the nuclear DNA.
- Mitochondrial DNA (mtDNA) is small but mutations can lead to severe hereditary conditions.
- The link between novel mtDNA mutations and clinical symptoms is an active area of research.
Purpose of the Study:
- To review current knowledge on mitochondrial DNA mutations.
- To summarize the relationship between these mutations and clinical manifestations.
- To discuss advanced gene therapy approaches for treating mitochondrial diseases.
Main Methods:
- Literature review of scientific publications.
- Analysis of reported mitochondrial DNA mutations.
- Evaluation of gene therapy strategies for mtDNA-related disorders.
Main Results:
- Numerous mitochondrial DNA mutations are linked to hereditary neuromuscular diseases.
- Continuous discovery of new mutations and their associated clinical phenotypes.
- Development of gene therapy techniques shows promise for disease suppression.
Conclusions:
- Mitochondrial DNA mutations are significant contributors to neuromuscular disorders.
- Understanding genotype-phenotype correlations is crucial for diagnosis and treatment.
- Gene therapy offers a potential therapeutic avenue for mitochondrial diseases.
Related Concept Videos
Animal Mitochondrial Genetics
10.2K
Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
10.2K
Mismatch Repair
46.0K
Overview
46.0K
Mismatch Repair
7.2K
Organisms are capable of detecting and fixing nucleotide mismatches that occur during DNA replication. This sophisticated process requires identifying the new strand and replacing the erroneous bases with correct nucleotides. Mismatch repair is coordinated by many proteins in both prokaryotes and eukaryotes.
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
7.2K
Mutations
98.5K
Overview
98.5K
Mutations
46.7K
Mutations are changes in the sequence of DNA. These changes can occur spontaneously or they can be induced by exposure to environmental factors. Mutations can be characterized in a number of different ways: whether and how they alter the amino acid sequence of the protein, whether they occur over a small or large area of DNA, and whether they occur in somatic cells or germline cells.
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
46.7K
Genome Copying Errors
5.6K
DNA replication is a well-evolved process that copies millions of base pairs with high fidelity during each cell division. Occasionally a wrong base or a long stretch of wrong bases may get added to the daughter strands. If the errors are left unchecked, cells might accumulate several mutations that might endanger their survival. Therefore, the copying errors are checked and repaired at three levels.
5.6K

