Mitochondrial matrix reloaded with RNA.

Endo, Toshiya; Yamano, Koji; Yoshihisa, Tohru · Cell · 2010

basic_science · Level V

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Abstract

Although mitochondrial biogenesis requires the import of specific RNAs, the pathways and cellular machineries involved are only poorly understood. Wang et al. (2010) now find that polynucleotide phosphorylase in the intermembrane space of mammalian mitochondria facilitates import of several RNAs into the mitochondrial matrix.