Coordination of Two Genomes by Mitochondrial Translational Plasticity.

ABSTRACT

The dual genetic origin of mitochondrial respiratory chain complexes leads to the synthesis of subunits by mitochondrial and cytosolic ribosomes. Now, Richter-Dennerlein et al. report that membrane-integrated assembly factors associate with ribosome nascent chain complexes in human mitochondria to coordinate translational plasticity with the import of subunits from the cytosol.