Mitoguardin (Miga) was first identified in flies as a mitochondrial outer-membrane protein that promotes mitochondrial fusion. Later, the mammalian Miga homologs, Miga1 and Miga2, were identified. They are found to promote mitochondrial fusion by regulating mitochondrial phospholipid metabolism via MitoPLD.
Jiyao W et al.(2023). "The conserved domain database in 2023.",