期刊
BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
卷 1861, 期 11, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.bbabio.2020.148259
关键词
Ubiquinone; Biosynthesis; Evolution; Isoprenoid quinone; Bacteria; Respiration; Anaerobiosis; Pathway
资金
- Agence Nationale de la Recherche (ANR) [(An)aeroUbi ANR-15-CE11-0001-02, O2-taboo ANR-19-CE44-0014]
- Grenoble Alpes Data Institute under the Investissements d'avenir program [ANR-15-IDEX-02]
- Centre National de la Recherche Scientifique (CNRS)
- Univ. Grenoble Alpes (UGA)
Ubiquinone is an important component of the electron transfer chains in proteobacteria and eukaryotes. The biosynthesis of ubiquinone requires multiple steps, most of which are common to bacteria and eukaryotes. Whereas the enzymes of the mitochondrial pathway that produces ubiquinone are highly similar across eukaryotes, recent results point to a rather high diversity of pathways in bacteria. This review focuses on ubiquinone in bacteria, highlighting newly discovered functions and detailing the proteins that are known to participate to its biosynthetic pathways. Novel results showing that ubiquinone can be produced by a pathway independent of dioxygen suggest that ubiquinone may participate to anaerobiosis, in addition to its well-established role for aerobiosis. We also discuss the supramolecular organization of ubiquinone biosynthesis proteins and we summarize the current understanding of the evolution of the ubiquinone pathways relative to those of other isoprenoid quinones like menaquinone and plastoquinone.
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