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Old dog, new tricks: Arf1 required for mitochondria homeostasis
1Hubrecht Institute of the KNAW and UMC Utrecht, Utrecht, The Netherlands Department of Cell Biology, UMC Utrecht, Utrecht, The Netherlands.
Abstract:
The small GTPase Arf1 that is classically required for the budding of COPI-coated vesicles from the Golgi membrane is now proposed to have novel and conserved roles in the morphological and functional maintenance of mitochondria: It functionally localizes to ER/mitochondria contact sites; it allows for the recruitment of a degradation machinery to mitochondria to remove toxic mitofusin/Fzo1 clusters; and it allows the extension of autophagy sequestration membranes needed for mitophagy to clear damaged mitochondria.
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