Endonuclease G from mammalian nuclei is identical to the major endonuclease of mitochondria.
Gerschenson M, Houmiel KL, Low RL. Endonuclease G from mammalian nuclei is identical to the major endonuclease of mitochondria. Nucleic Acids Res. 1995 Jan 11; 23(1):88-97.