Abstract
Mitochondria are eukaryotic organelles of endosymbiotic origin that contain their own genetic material, mitochondrial DNA (mtDNA), and dedicated systems for mtDNA maintenance and expression. MtDNA molecules encode a limited number of proteins that are nevertheless all essential subunits of the mitochondrial oxidative phosphorylation system. Here, we describe protocols to monitor DNA and RNA synthesis in intact, isolated mitochondria. These in organello synthesis protocols are valuable techniques for studying the mechanisms and regulation of mtDNA maintenance and expression.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Gustafsson CM, Falkenberg M, Larsson N-G (2016) Maintenance and expression of mammalian mitochondrial DNA. Annu Rev Biochem 85:133–160
Protasoni M, Zeviani M (2021) Mitochondrial structure and bioenergetics in normal and disease conditions. Int J Mol Sci 22:586
Pfanner N, Warscheid B, Wiedemann N (2019) Mitochondrial proteins: from biogenesis to functional networks. Nat Rev Mol Cell Biol 1:267–284
Viscomi C, Zeviani M (2017) MtDNA-maintenance defects: syndromes and genes. J Inherit Metab Dis 40:587–599
Falkenberg M (2018) Mitochondrial DNA replication in mammalian cells: overview of the pathway. Essays Biochem 62:287–296
Gensler S, Weber K, Schmitt WE et al (2001) Mechanism of mammalian mitochondrial DNA replication: import of mitochondrial transcription factor a into isolated mitochondria stimulates 7S DNA synthesis. Nucleic Acids Res 29:3657–3663
Enriquez JA, Ramos J, Perez-Martos A et al (1994) Highly efficient DNA synthesis in isolated mitochondria from rat liver. Nucleic Acids Res 22:1861–1865
Matic S, Jiang M, Nicholls TJ et al (2018) Mice lacking the mitochondrial exonuclease MGME1 accumulate mtDNA deletions without developing progeria. Nat Commun 9:1202
Ruzzenente B, Metodiev MD, Wredenberg A et al (2011) LRPPRC is necessary for polyadenylation and coordination of translation of mitochondrial mRNAs. EMBO J 31:443–456
Enriquez JA, López-Pérez MJ, Montoya J (1991) Saturation of the processing of newly synthesized rRNA in isolated brain mitochondria. FEBS Lett 280:32–36
Bratic A, Clemente P, Calvo-Garrido J et al (2016) Mitochondrial polyadenylation is a one-step process required for mRNA integrity and tRNA maturation. PLoS Genet 12:e1006028
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2023 The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature
About this protocol
Cite this protocol
Misic, J., Milenkovic, D. (2023). Studying Mitochondrial Nucleic Acid Synthesis Utilizing Intact Isolated Mitochondria. In: Nicholls, T.J., Uhler, J.P., Falkenberg, M. (eds) Mitochondrial DNA. Methods in Molecular Biology, vol 2615. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-2922-2_16
Download citation
DOI: https://doi.org/10.1007/978-1-0716-2922-2_16
Published:
Publisher Name: Humana, New York, NY
Print ISBN: 978-1-0716-2921-5
Online ISBN: 978-1-0716-2922-2
eBook Packages: Springer Protocols