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A protein-only RNase P in human mitochondria.

Cell (2008-11-06)
Scott C Walker, David R Engelke
RESUMEN

In bacteria, archaea, and the eukaryote nucleus, the endonuclease ribonuclease P (RNase P) is composed of a catalytic RNA that is assisted by protein subunits. Holzmann et al. (2008) now provide evidence that the human mitochondrial RNase P is an entirely protein-based enzyme.