ERMIONE is a network of interacting proteins in control of mitochondrial biogenesis.
ERMIONE has a core formed by ERMES-MICOS-SAM-TOM and a shell of accessory proteins.
ERMIONE localizes mitochondrial biogenic processes at MCSs.
ERMIONE evolution reflects the integration of mitochondria with their hosts.
ERMIONE has bacterial roots; it has both simplified and complexified in eukaryotes.