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Título: | Iron in Translation: From the Beginning to the End |
Autor: | Romero Cuadrado, Antonia M.; Martínez Pastor, M.Teresa; Puig, Sergi CSIC ORCID | Palabras clave: | Translation tRNA modification Yeast Saccharomyces cerevisiae Iron deficiency |
Fecha de publicación: | 13-may-2021 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Microorganisms, 9(5): 1058 (2021) | Resumen: | Iron is an essential element for all eukaryotes, since it acts as a cofactor for many enzymes involved in basic cellular functions, including translation. While the mammalian iron-regulatory protein/iron-responsive element (IRP/IRE) system arose as one of the first examples of translational regulation in higher eukaryotes, little is known about the contribution of iron itself to the different stages of eukaryotic translation. In the yeast Saccharomyces cerevisiae, iron deficiency provokes a global impairment of translation at the initiation step, which is mediated by the Gcn2-eIF2α pathway, while the post-transcriptional regulator Cth2 specifically represses the translation of a subgroup of iron-related transcripts. In addition, several steps of the translation process depend on iron-containing enzymes, including particular modifications of translation elongation factors and transfer RNAs (tRNAs), and translation termination by the ATP-binding cassette family member Rli1 (ABCE1 in humans) and the prolyl hydroxylase Tpa1. The influence of these modifications and their correlation with codon bias in the dynamic control of protein biosynthesis, mainly in response to stress, is emerging as an interesting focus of research. Taking S. cerevisiae as a model, we hereby discuss the relevance of iron in the control of global and specific translation steps. | Versión del editor: | https://doi.org/10.3390/microorganisms9051058 | URI: | http://hdl.handle.net/10261/244404 | DOI: | 10.3390/microorganisms9051058 | E-ISSN: | 2076-2607 |
Aparece en las colecciones: | (IATA) Artículos |
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microorganisms-09-01058-v2.pdf | Artículo principal | 1,18 MB | Adobe PDF | Visualizar/Abrir |
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