Cited by 244Mitochondrial Function and PathologyAutophagy in Disease and TherapyCell death mechanisms and regulation

The constriction and scission machineries involved in mitochondrial fission

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Kraus, Felix, Ryan, Michael T.·2017·Journal of Cell Science

Abstract

A key event in the evolution of eukaryotic cells was the engulfment of an aerobic bacterium by a larger anaerobic archaebacterium, leading to a close relationship between the host and the newly formed endosymbiont. Mitochondria, originating from this event, have evolved to be the main place of cellular ATP production. Maintaining elements of their independence, mitochondria undergo growth and division in the cell, thereby ensuring that new daughter cells inherit a mitochondrial complement. Mitochondrial division is also important for other processes, including quality control, mitochondrial (mt)DNA inheritance, transport and cell death. However, unlike bacterial fission, which uses a dynamin-related protein to constrict the membrane at its inner face, mitochondria use dynamin and dynamin-related proteins to constrict the outer membrane from the cytosolic face. In this Review, we summarize the role of proteins from the dynamin superfamily in mitochondrial division. This includes recent findings highlighting that dynamin-2 (Dnm2) is involved in mitochondrial scission, which led to the reappraisal of the role of dynamin-related protein 1 (Drp1; also known as Dnm1l) and its outer membrane adaptors as components of the mitochondrial constriction machinery along with ER components and actin.

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  • DRP1 is recruited to marked division sites to bind to its OMM receptors/adaptors, facilitating DRP1 oligomerization into a ring-like structure that narrows the membranes.

    “Subsequently, DRP1 is recruited to the marked division sites to bind to its OMM receptors/adaptors. This binding facilitates DRP1 oligomerization, forming a ring-like structure that favors an additional narrowing of the membranes [83].”

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Authors
Kraus, F., & Ryan, M. T.
Affiliations
Monash University (AU)
Corresponding author
Kraus, Felix
Venue
Journal of Cell Science
Published
2017-09-15
Volume
130
Issue
18
Pages
2953-2960
ISSN
  • 0021-9533 (ISSN-L)
  • 1477-9137
OpenAlex
W2747200758
Cited by
244
References
95
Citations by year
2026: 13 · 2025: 14 · 2024: 25 · 2023: 26 · 2022: 32 · 2021: 40 · 2020: 41 · 2019: 33 · 2018: 19 · 2017: 1
FWCI
2.41
Type
journal article
Language
en
Open access
Locations
  • Journal of Cell Science (publishedVersion)
  • Monash University Research Portal (Monash University) (publishedVersion, other-oa)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • Australian Research Council (DP160102176)
  • National Health and Medical Research Council
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
Keywords
mitochondrial fission, mitochondrial division, dynamin superfamily, dynamin 2, Drp1, mitochondrial outer membrane, mitochondrial inheritance, endosymbiotic origin of mitochondria, actin, endoplasmic reticulum, mitochondrial quality control
MeSH terms
Actins, Animals, Endoplasmic Reticulum, Humans, Lipids, Models, Biological, Mitochondrial Proteins, Mitochondrial Dynamics

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