Abstract
There are striking similarities between the processes of RNA degradation in bacteria and eukaryotes, which rely on the same basic set of enzymatic activities. In particular, enzymes that catalyze 3′→5′ RNA decay share evolutionary relationships across the three domains of life. Over the years, a large body of biochemical and structural data has been generated that elucidated the mechanism of action of these enzymes. In this overview, to trace the evolutionary origins of the multisubunit RNA exosome complex, we compare the structural and functional characteristics of the eukaryotic and prokaryotic exoribonucleolytic activities.
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Acknowledgments
This work was supported by project Lisboa-01-0145-FEDER-007660 (Microbiologia Molecular, Estrutural e Celular) funded by FEDER through COMPETE 2020—Programa Operacional Competitividade e Internacionalização (POCI) and by project PTDC/BIM-MEC/3749/2014 to SCV, project PTDC/BIA-BQM/28479/2017 to RGM and project PTDC/BIAMIC/1399/2014 to CMA, funded by Fundação para a Ciência e Tecnologia, Portugal (FCT). SCV was financed by FCT program IF (ref. IF/00217/2015); RGM was financed by an FCT contract (ref. CEECIND/02065/2017).
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Viegas, S.C., Matos, R.G., Arraiano, C.M. (2020). The Bacterial Counterparts of the Eukaryotic Exosome: An Evolutionary Perspective. In: LaCava, J., Vaňáčová, Š. (eds) The Eukaryotic RNA Exosome. Methods in Molecular Biology, vol 2062. Humana, New York, NY. https://doi.org/10.1007/978-1-4939-9822-7_2
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