The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.
Regulation of OPA1 processing and mitochondrial fusion by m -AAA protease isoenzymes and OMA1
Open accessAbstract
Mitochondrial fusion depends on the dynamin-like guanosine triphosphatase OPA1, whose activity is controlled by proteolytic cleavage. Dysfunction of mitochondria induces OPA1 processing and results in mitochondrial fragmentation, allowing the selective removal of damaged mitochondria. In this study, we demonstrate that two classes of metallopeptidases regulate OPA1 cleavage in the mitochondrial inner membrane: isoenzymes of the adenosine triphosphate (ATP)–dependent matrix AAA (ATPase associated with diverse cellular activities [m-AAA]) protease, variable assemblies of the conserved subunits paraplegin, AFG3L1 and -2, and the ATP-independent peptidase OMA1. Functionally redundant isoenzymes of the m-AAA protease ensure the balanced accumulation of long and short isoforms of OPA1 required for mitochondrial fusion. The loss of AFG3L2 in mouse tissues, down-regulation of AFG3L1 and -2 in mouse embryonic fibroblasts, or the expression of a dominant-negative AFG3L2 variant in human cells decreases the stability of long OPA1 isoforms and induces OPA1 processing by OMA1. Moreover, cleavage by OMA1 causes the accumulation of short OPA1 variants if mitochondrial DNA is depleted or mitochondrial activities are impaired. Our findings link distinct peptidases to constitutive and induced OPA1 processing and shed new light on the pathogenesis of neurodegenerative disorders associated with mutations in m-AAA protease subunits.
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Citations
Cites
OPA1 Controls Apoptotic Cristae Remodeling Independently from Mitochondrial Fusion
Frezza, C., Cipolat, S., Martins de Brito, O., Micaroni, M., Beznoussenko, G. V., Rudka, T., Bartoli, D., Polishuck, R. S., Danial, N. N., De Strooper, B., et al. (2006) · Cell · doi:10.1016/j.cell.2006.06.025 · Cited by 1,673
Olichon, A., Baricault, L., Gas, N., Guillou, E., Valette, A., Belenguer, P., & Lenaers, G. (2003) · Journal of Biological Chemistry · doi:10.1074/jbc.c200677200 · Cited by 1,168
Regulation of mitochondrial morphology through proteolytic cleavage of OPA1
Ishihara, N., Fujita, Y., Oka, T., & Mihara, K. (2006) · The EMBO Journal · doi:10.1038/sj.emboj.7601184 · Cited by 899
Casari, G., De Fusco, M., Ciarmatori, S., Zeviani, M., Mora, M., Fernandez, P., De Michele, G., Filla, A., Cocozza, S., Marconi, R., et al. (1998) · Cell · doi:10.1016/s0092-8674(00)81203-9 · Cited by 830
Song, Z., Chen, H., Fiket, M., Alexander, C., & Chan, D. C. (2007) · The Journal of Cell Biology · doi:10.1083/jcb.200704110 · Cited by 828
The Machines that Divide and Fuse Mitochondria
Hoppins, S., Lackner, L., & Nunnari, J. (2007) · Annual Review of Biochemistry · doi:10.1146/annurev.biochem.76.071905.090048 · Cited by 790
SLP‐2 is required for stress‐induced mitochondrial hyperfusion
Tondera, D., Grandemange, S., Jourdain, A., Karbowski, M., Mattenberger, Y., Herzig, S., Da Cruz, S., Clerc, P., Raschke, I., Merkwirth, C., et al. (2009) · The EMBO Journal · doi:10.1038/emboj.2009.89 · Cited by 779
Self-citationCipolat, S., Rudka, T., Hartmann, D., Costa, V., Serneels, L., Craessaerts, K., Metzger, K., Frezza, C., Annaert, W., D'Adamio, L., et al. (2006) · Cell · doi:10.1016/j.cell.2006.06.021 · Cited by 741
A Human Dynamin-related Protein Controls the Distribution of Mitochondria
Smirnova, E., Shurland, D.-L., Ryazantsev, S. N., & van der Bliek, A. M. (1998) · The Journal of Cell Biology · doi:10.1083/jcb.143.2.351 · Cited by 733
hFis1, a Novel Component of the Mammalian Mitochondrial Fission Machinery
James, D. I., Parone, P. A., Mattenberger, Y., & Martinou, J.-C. (2003) · Journal of Biological Chemistry · doi:10.1074/jbc.m303758200 · Cited by 652
Self-citation
Cited by
Mitochondrial Fission, Fusion, and Stress
Youle, R. J., & van der Bliek, A. M. (2012) · Science · doi:10.1126/science.1219855 · Cited by 3,674
Mitochondria: In Sickness and in Health
Nunnari, J., & Suomalainen, A. (2012) · Cell · doi:10.1016/j.cell.2012.02.035 · Cited by 3,479
Mitochondrial fusion and fission in cell life and death
Westermann, B. (2010) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm3013 · Cited by 2,002
Mitochondrial form and function
Friedman, J. R., & Nunnari, J. (2014) · Nature · doi:10.1038/nature12985 · Cited by 1,803
The cell biology of mitochondrial membrane dynamics
Giacomello, M., Pyakurel, A., Glytsou, C., & Scorrano, L. (2020) · Nature Reviews Molecular Cell Biology · doi:10.1038/s41580-020-0210-7 · Cited by 1,550
Metadata
- Authors
- Ehses, S., Raschke, I., Mancuso, G., Bernacchia, A., Geimer, S., Tondera, D., Martinou, J.-C., Westermann, B., Rugarli, E. I., & Langer, T.
- Venue
- Journal of Cell Biology
- Publisher
- Rockefeller University Press
- Published
- 2009-12-28
- Volume
- 187
- Issue
- 7
- Pages
- 1023-1036
- ISSN
- 0021-9525 (ISSN-L)
- 1540-8140
- OpenAlex
- W2006787533
- Cited by
- 573
- References
- 38
- FWCI
- 9.84
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Ehses, S., Raschke, I., Mancuso, G., Bernacchia, A., Geimer, S., Tondera, D., Martinou, J.-C., Westermann, B., Rugarli, E. I., & Langer, T. (2009). Regulation of OPA1 processing and mitochondrial fusion by m -AAA protease isoenzymes and OMA1. Journal of Cell Biology. https://doi.org/10.1083/jcb.200906084
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