An inner-mitochondrial-membrane-associated regulator contributing to inner-membrane fusion and organization.
Its activity contributes to the organization of mitochondrial inner-membrane architecture, including cristae. Changes in organelle shape can therefore accompany changes in internal membrane organization; observing fragmented mitochondria alone does not identify which fusion or fission step changed. [ref]
Molecular Biology of the Cell, 4th edition by Bruce Alberts and others. Chapters 3, 6 and 15, protein function, translation and cell signalling
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