microManaging mitochondrial translation.

Nouws, Jessica; Shadel, Gerald S · Cell · 2014

basic_science · Level V

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Abstract

Regulation of gene expression in mammalian mitochondria by microRNAs is reported by Zhang et al. During muscle cell differentiation, localization of a miRNA is increased within mitochondria, where it interacts with Ago2 to selectively activate translation of mtDNA-encoded mRNAs. The findings represent a new mitochondrial regulatory pathway and a potentially powerful means to purposefully manipulate mtDNA expression.

Medical subject headings