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Mitochondrial RNA maturation

Lookup NU author(s): Emerita Professor Zofia Chrzanowska-LightowlersORCiD, Emeritus Professor Robert Lightowlers

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

© 2024 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. The vast majority of oxygen-utilizing eukaryotes need to express their own mitochondrial genome, mtDNA, to survive. In comparison to size of their nuclear genome, mtDNA is minimal, even in the most exceptional examples. Having evolved from bacteria in an endosymbiotic event, it might be expected that the process of mtDNA expression would be relatively simple. The aim of this short review is to illustrate just how wrong this assumption is. The production of functional mitochondrial RNA across species evolved in many directions. Organelles use a dizzying array of RNA processing, modifying, editing, splicing and maturation events that largely require the import of nuclear-encoded proteins from the cytosol. These processes are sometimes driven by the unusual behaviour of the mitochondrial genome from which the RNA is originally transcribed, but in many examples the complex processes that are essential for the production of functional RNA in the organelle, are fascinating and bewildering.


Publication metadata

Author(s): Chrzanowska-Lightowlers ZM, Lightowlers RN

Publication type: Review

Publication status: Published

Journal: RNA Biology

Year: 2024

Volume: 21

Issue: 1

Pages: 28-39

Online publication date: 10/10/2024

Acceptance date: 30/09/2024

ISSN (print): 1547-6286

ISSN (electronic): 1555-8584

Publisher: Taylor and Francis Ltd.

URL: https://doi.org/10.1080/15476286.2024.2414157

DOI: 10.1080/15476286.2024.2414157

PubMed id: 39385590


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