(A) Western blot shows that only Ago 2, and not Dicer or TRBP, is present in the mitochondria. Prohibitin is used as a mitochondrial marker.
qRT-PCR shows both (B) miR-181c and (C) mt-COX1 mRNA, and no other mitochondrial gene products, like (D) mt-COX2 mRNA or (E) 12S rRNA; in the Ago 2 immunoprecipitate from the mitochondrial fraction.