This domain is found at the C-terminus of mitochondria-eating proteins. This family of proteins regulate mitochondrial quality. They have a role in the degradation of damaged mitochondrial proteins and in the degradation of damaged mitochondria [1-3].

1: Possible existence of lysosome-like organella within mitochondria and its role in mitochondrial quality control. Miyamoto Y, Kitamura N, Nakamura Y, Futamura M, Miyamoto T, Yoshida M, Ono M, Ichinose S, Arakawa H; PLoS One. 2011;6:e16054. PMID:21264221

2: Mieap, a p53-inducible protein, controls mitochondrial quality by repairing or eliminating unhealthy mitochondria. Kitamura N, Nakamura Y, Miyamoto Y, Miyamoto T, Kabu K, Yoshida M, Futamura M, Ichinose S, Arakawa H; PLoS One. 2011;6:e16060. PMID:21264228

3: BNIP3 and NIX mediate Mieap-induced accumulation of lysosomal proteins within mitochondria. Nakamura Y, Kitamura N, Shinogi D, Yoshida M, Goda O, Murai R, Kamino H, Arakawa H; PLoS One. 2012;7:e30767. PMID:22292033