The Importance of Being RNA-est: considering RNA-mediated ribosome plasticity

Autor: Christian Trahan, Marlene Oeffinger
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: RNA Biology, Vol 20, Iss 1, Pp 177-185 (2023)
Druh dokumentu: article
ISSN: 1547-6286
1555-8584
15476286
DOI: 10.1080/15476286.2023.2204581
Popis: For over 40 years, ribosomes were considered monolithic machines that translate the genetic code indiscriminately. However, over the past two decades, there have been a growing number of studies that suggest ribosomes to have a degree of compositional and functional adaptability in response to tissue type, cell environment and stimuli, cell cycle or development state. In such form, ribosomes themselves take an active part in translation regulation through an intrinsic adaptability provided by evolution, which furnished ribosomes with a dynamic plasticity that confers another layer of gene expression regulation. Yet despite the identification of various sources that give rise to ribosomal heterogeneity both at the protein and RNA level, its functional relevance is still debated, and many questions remain. Here, we will review aspects, including evolutionary ones, of ribosome heterogeneity emerging at the nucleic acid level, and aim to reframe ribosome ‘heterogeneity’ as an adaptive and dynamic process of plasticity.The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent.
Databáze: Directory of Open Access Journals