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Mitofusin-2 Independent Juxtaposition of Endoplasmic Reticulum and Mitochondria: An Ultrastructural Study
Open accessAbstract
Besides its role in controlling the morphology of mitochondria, mitofusin-2 has been proposed to tether mitochondria to the endoplasmic reticulum (ER), based largely on light microscopic analysis. In this study we have examined by electron microscopy the organization of ER and mitochondria in cells expressing or not mitofusin-2. Contrary to previous studies, we observed that loss of mitofusin-2 increased ER-mitochondria juxtaposition. These results suggest that mitofusin-2 does not play a critical role in the juxtapostion of ER and mitochondria, and highlight the essential role of ultrastructural analysis to visualize and measure contact between two intracellular compartments.
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Cites
Mitofusin 2 tethers endoplasmic reticulum to mitochondria
de Brito, O. M., & Scorrano, L. (2008) · Nature · doi:10.1038/nature07534 · Cited by 2,442
Mutations in the mitochondrial GTPase mitofusin 2 cause Charcot-Marie-Tooth neuropathy type 2A
Züchner, S., Mersiyanova, I. V., Muglia, M., Bissar-Tadmouri, N., Rochelle, J., Dadali, E. L., Zappia, M., Nelis, E., Patitucci, A., Senderek, J., et al. (2004) · Nature Genetics · doi:10.1038/ng1341 · Cited by 1,572
Disruption of Fusion Results in Mitochondrial Heterogeneity and Dysfunction
Chen, H., Chomyn, A., & Chan, D. C. (2005) · Journal of Biological Chemistry · doi:10.1074/jbc.m503062200 · Cited by 1,376 · cited 1×
“MEF cells were described previously [11,22], and grown at 37uC in Dulbecco’s modified Eagle’s medium (DMEM, Gibco), supplemented with 10% fetal calf serum (FCS, Gibco) and nonessential aminoacids (Sigma).”
An ER-Mitochondria Tethering Complex Revealed by a Synthetic Biology Screen
Kornmann, B., Currie, E., Collins, S. R., Schuldiner, M., Nunnari, J., Weissman, J. S., & Walter, P. (2009) · Science · doi:10.1126/science.1175088 · Cited by 1,275
Control of mitochondrial morphology by a human mitofusin
Santel, A., & Fuller, M. T. (2001) · Journal of Cell Science · doi:10.1242/jcs.114.5.867 · Cited by 1,012
Cited by
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
Mitochondrial Dynamics and Its Involvement in Disease
Chan, D. C. (2020) · Annual Review of Pathology: Mechanisms of Disease · doi:10.1146/annurev-pathmechdis-012419-032711 · Cited by 1,416
Structure and function of ER membrane contact sites with other organelles
Phillips, M. J., & Voeltz, G. K. (2016) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm.2015.8 · Cited by 933
Endoplasmic reticulum-mitochondrial contactology: structure and signaling functions
Csordás, G., Weaver, D., & Hajnóczky, G. (2018) · Trends in Cell Biology · doi:10.1016/j.tcb.2018.02.009 · Cited by 625
Mitofusin 2 ablation increases endoplasmic reticulum–mitochondria coupling
Filadi, R., Greotti, E., Turacchio, G., Luini, A., Pozzan, T., & Pizzo, P. (2015) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1504880112 · Cited by 573
Metadata
- Authors
- Cosson, P., Marchetti, A., Ravazzola, M., & Orci, L.
- Venue
- PLoS ONE
- Publisher
- Public Library of Science (PLoS)
- Published
- 2012-09-28
- Volume
- 7
- Issue
- 9
- Pages
- e46293
- ISSN
- 1932-6203 (ISSN-L)
- OpenAlex
- W1991959810
- Cited by
- 227
- References
- 5
- FWCI
- 2.79
- Type
- journal article
- Language
- en
- Open access
- gold
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- Cosson, P., Marchetti, A., Ravazzola, M., & Orci, L. (2012). Mitofusin-2 Independent Juxtaposition of Endoplasmic Reticulum and Mitochondria: An Ultrastructural Study. PLoS ONE. https://doi.org/10.1371/journal.pone.0046293
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
