Koenig, Tim, Nolte, Hendrik, Aaltonen, Mari J. ORCID: 0000-0002-7333-9334, Tatsuta, Takashi, Krols, Michiel, Stroh, Thomas, Langer, Thomas and McBride, Heidi M. ORCID: 0000-0003-4666-2280 (2021). MIROs and DRP1 drive mitochondrial-derived vesicle biogenesis and promote quality control. Nat. Cell Biol., 23 (12). S. 1271 - 1305. BERLIN: NATURE PORTFOLIO. ISSN 1476-4679

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Abstract

By characterizing the composition of mitochondrial-derived vesicles (MDVs), Konig et al. define a MIRO1/2- and DRP1-dependent MDV biogenesis pathway and propose that MDVs maintain the mitochondrial proteome by shuttling assembled protein complexes to lysosomes. Mitochondrial-derived vesicles (MDVs) are implicated in diverse physiological processes-for example, mitochondrial quality control-and are linked to various neurodegenerative diseases. However, their specific cargo composition and complex molecular biogenesis are still unknown. Here we report the proteome and lipidome of steady-state TOMM20(+) MDVs. We identified 107 high-confidence MDV cargoes, which include all beta-barrel proteins and the TOM import complex. MDV cargoes are delivered as fully assembled complexes to lysosomes, thus representing a selective mitochondrial quality control mechanism for multi-subunit complexes, including the TOM machinery. Moreover, we define key biogenesis steps of phosphatidic acid-enriched MDVs starting with the MIRO1/2-dependent formation of thin membrane protrusions pulled along microtubule filaments, followed by MID49/MID51/MFF-dependent recruitment of the dynamin family GTPase DRP1 and finally DRP1-dependent scission. In summary, we define the function of MDVs in mitochondrial quality control and present a mechanistic model for global GTPase-driven MDV biogenesis.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Koenig, TimUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nolte, HendrikUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Aaltonen, Mari J.UNSPECIFIEDorcid.org/0000-0002-7333-9334UNSPECIFIED
Tatsuta, TakashiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Krols, MichielUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stroh, ThomasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Langer, ThomasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
McBride, Heidi M.UNSPECIFIEDorcid.org/0000-0003-4666-2280UNSPECIFIED
URN: urn:nbn:de:hbz:38-578173
DOI: 10.1038/s41556-021-00798-4
Journal or Publication Title: Nat. Cell Biol.
Volume: 23
Number: 12
Page Range: S. 1271 - 1305
Date: 2021
Publisher: NATURE PORTFOLIO
Place of Publication: BERLIN
ISSN: 1476-4679
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
QUANTITATIVE-ANALYSIS; PHOSPHATIDIC-ACID; MITOPHAGY; TRANSPORT; PROTEINS; FISSION; PARKIN; CARGO; MICROTUBULE; PEROXISOMESMultiple languages
Cell BiologyMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/57817

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