The DOI matches its Crossref record; 54 of the 54 references it cites were found in a registry or an index.
Activated Mitofusin 2 Signals Mitochondrial Fusion, Interferes with Bax Activation, and Reduces Susceptibility to Radical Induced Depolarization
Open accessAbstract
Mitochondrial fusion in higher eukaryotes requires at least two essential GTPases, Mitofusin 1 and Mitofusin 2 (Mfn2). We have created an activated mutant of Mfn2, which shows increased rates of nucleotide exchange and decreased rates of hydrolysis relative to wild type Mfn2. Mitochondrial fusion is stimulated dramatically within heterokaryons expressing this mutant, demonstrating that hydrolysis is not requisite for the fusion event, and supporting a role for Mfn2 as a signaling GTPase. Although steady-state mitochondrial fusion required the conserved intermembrane space tryptophan residue, this requirement was overcome within the context of the hydrolysis-deficient mutant. Furthermore, the punctate localization of Mfn2 is lost in the dominant active mutants, indicating that these sites are functionally controlled by changes in the nucleotide state of Mfn2. Upon staurosporine-stimulated cell death, activated Bax is recruited to the Mfn2-containing puncta; however, Bax activation and cytochrome c release are inhibited in the presence of the dominant active mutants of Mfn2. The dominant active form of Mfn2 also protected the mitochondria against free radical-induced permeability transition. In contrast to staurosporine-induced outer membrane permeability transition, pore opening induced through the introduction of free radicals was dependent upon the conserved intermembrane space residue. This is the first evidence that Mfn2 is a signaling GTPase regulating mitochondrial fusion and that the nucleotide-dependent activation of Mfn2 concomitantly protects the organelle from permeability transition. The data provide new insights into the critical relationship between mitochondrial membrane dynamics and programmed cell death.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Proapoptotic BAX and BAK: A Requisite Gateway to Mitochondrial Dysfunction and Death
Wei, M. C., Zong, W.-X., Cheng, E. H.-Y., Lindsten, T., Panoutsakopoulou, V., Ross, A. J., Roth, K. A., MacGregor, G. R., Thompson, C. B., & Korsmeyer, S. J. (2001) · Science · doi:10.1126/science.1059108 · Cited by 3,988
Barbacid, M. (1987) · Annual Review of Biochemistry · doi:10.1146/annurev.bi.56.070187.004023 · Cited by 3,885
Chen, H., Detmer, S. A., Ewald, A. J., Griffin, E. E., Fraser, S. E., & Chan, D. C. (2003) · The Journal of Cell Biology · doi:10.1083/jcb.200211046 · Cited by 2,601
Dynamin-related Protein Drp1 Is Required for Mitochondrial Division in Mammalian Cells
Smirnova, E., Griparic, L., Shurland, D.-L., & van der Bliek, A. M. (2001) · Molecular Biology of the Cell · doi:10.1091/mbc.12.8.2245 · Cited by 1,933
The Guanine Nucleotide-Binding Switch in Three Dimensions
Vetter, I. R., & Wittinghofer, A. (2001) · Science · doi:10.1126/science.1062023 · Cited by 1,875
The Role of Dynamin-Related Protein 1, a Mediator of Mitochondrial Fission, in Apoptosis
Frank, S., Gaume, B., Bergmann-Leitner, E. S., Leitner, W. W., Robert, E. G., Catez, F., Smith, C. L., & Youle, R. J. (2001) · Developmental Cell · doi:10.1016/s1534-5807(01)00055-7 · Cited by 1,755
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
The small GTPase rab5 functions as a regulatory factor in the early endocytic pathway
Bucci, C., Parton, R. G., Mather, I. H., Stunnenberg, H., Simons, K., Hoflack, B., & Zerial, M. (1992) · Cell · doi:10.1016/0092-8674(92)90306-w · Cited by 1,373
OPA1 requires mitofusin 1 to promote mitochondrial fusion
Cipolat, S., de Brito, O. M., Dal Zilio, B., & Scorrano, L. (2004) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0407043101 · Cited by 1,300
Desagher, S., Osen-Sand, A., Nichols, A., Eskes, R., Montessuit, S., Lauper, S., Maundrell, K., Antonsson, B., & Martinou, J.-C. (1999) · The Journal of Cell Biology · doi:10.1083/jcb.144.5.891 · Cited by 1,262
Cited by
Mitochondrial membrane permeabilization in cell death
Kroemer, G., Galluzzi, L., & Brenner, C. (2007) · Physiological Reviews · doi:10.1152/physrev.00013.2006 · Cited by 3,598
Mitochondria: More Than Just a Powerhouse
McBride, H. M., Neuspiel, M., & Wasiak, S. (2006) · Current Biology · doi:10.1016/j.cub.2006.06.054 · Cited by 1,985
Self-citationOPA1 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
Mitochondrial dynamics and apoptosis
Suen, D.-F., Norris, K. L., & Youle, R. J. (2008) · Genes & Development · doi:10.1101/gad.1658508 · Cited by 1,270
Cassidy-Stone, A., Chipuk, J. E., Ingerman, E., Song, C., Yoo, C., Kuwana, T., Kurth, M. J., Shaw, J. T., Hinshaw, J. E., Green, D. R., et al. (2008) · Developmental Cell · doi:10.1016/j.devcel.2007.11.019 · Cited by 1,200
Metadata
- Authors
- Neuspiel, M., Zunino, R., Gangaraju, S., Rippstein, P., & McBride, H.
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 2005-07
- Volume
- 280
- Issue
- 26
- Pages
- 25060-25070
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W1972044649
- Cited by
- 306
- References
- 54
- FWCI
- 6.91
- Type
- journal article
- Language
- en
- Open access
- hybrid
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Activated Mitofusin 2 Signals Mitochondrial Fusion, Interferes with Bax Activation, and Reduces Susceptibility to Radical Induced Depolarization. https://app.cochat.ai/papers/10.1074/jbc.m501599200
- The paper
- Neuspiel, M., Zunino, R., Gangaraju, S., Rippstein, P., & McBride, H. (2005). Activated Mitofusin 2 Signals Mitochondrial Fusion, Interferes with Bax Activation, and Reduces Susceptibility to Radical Induced Depolarization. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m501599200
Data sources
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.
