The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.
The short variant of the mitochondrial dynamin OPA1 maintains mitochondrial energetics and cristae structure
Open accessAbstract
The protein optic atrophy 1 (OPA1) is a dynamin-related protein associated with the inner mitochondrial membrane and functions in mitochondrial inner membrane fusion and cristae maintenance. Inner membrane-anchored long OPA1 (L-OPA1) undergoes proteolytic cleavage resulting in short OPA1 (S-OPA1). It is often thought that S-OPA1 is a functionally insignificant proteolytic product of L-OPA1 because the accumulation of S-OPA1 due to L-OPA1 cleavage is observed in mitochondrial fragmentation and dysfunction. However, cells contain a mixture of both L- and S-OPA1 in normal conditions, suggesting the functional significance of maintaining both OPA1 forms, but the differential roles of L- and S-OPA1 in mitochondrial fusion and energetics are ill-defined. Here, we examined mitochondrial fusion and energetic activities in cells possessing L-OPA1 alone, S-OPA1 alone, or both L- and S-OPA1. Using a mitochondrial fusion assay, we established that L-OPA1 confers fusion competence, whereas S-OPA1 does not. Remarkably, we found that S-OPA1 alone without L-OPA1 can maintain oxidative phosphorylation function as judged by growth in oxidative phosphorylation-requiring media, respiration measurements, and levels of the respiratory complexes. Most strikingly, S-OPA1 alone maintained normal mitochondrial cristae structure, which has been commonly assumed to be the function of OPA1 oligomers containing both L- and S-OPA1. Furthermore, we found that the GTPase activity of OPA1 is critical for maintaining cristae tightness and thus energetic competency. Our results demonstrate that, contrary to conventional notion, S-OPA1 is fully competent for maintaining mitochondrial energetics and cristae structure.
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
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
During autophagy mitochondria elongate, are spared from degradation and sustain cell viability
Gomes, L. C., Benedetto, G. D., & Scorrano, L. (2011) · Nature Cell Biology · doi:10.1038/ncb2220 · Cited by 1,735
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
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×
“Regarding the role of OPA1 in OXPHOS, knockdown or knock-out of OPA1 disrupts cristae structure and respiration and increases apoptotic sensitivity (15, 16, 33, 34), whereas OPA1 overexpression enhances cristae tightness, apoptotic resistance, respiratory supercomplex formation, and OXPHOS (35–38).”
BackgroundOPA1 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
Cogliati, S., Frezza, C., Soriano, M. E., Varanita, T., Quintana-Cabrera, R., Corrado, M., Cipolat, S., Costa, V., Casarin, A., Gomes, L. C., et al. (2013) · Cell · doi:10.1016/j.cell.2013.08.032 · Cited by 1,265
Yu, T., Robotham, J. L., & Yoon, Y. (2006) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0511154103 · Cited by 1,246
Self-citationOlichon, 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
The i -AAA protease YME1L and OMA1 cleave OPA1 to balance mitochondrial fusion and fission
Anand, R., Wai, T., Baker, M. J., Kladt, N., Schauss, A. C., Rugarli, E., & Langer, T. (2014) · Journal of Cell Biology · doi:10.1083/jcb.201308006 · Cited by 812
Cited by
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
Mitochondrial stress is relayed to the cytosol by an OMA1–DELE1–HRI pathway
Guo, X., Aviles, G., Liu, Y., Tian, R., Unger, B. A., Lin, Y.-H. T., Wiita, A. P., Xu, K., Correia, M. A., & Kampmann, M. (2020) · Nature · doi:10.1038/s41586-020-2078-2 · Cited by 674
Quality control of the mitochondrion
Ng, M. Y. W., Wai, T., & Simonsen, A. (2021) · Developmental Cell · doi:10.1016/j.devcel.2021.02.009 · Cited by 445
Two Forms of Opa1 Cooperate to Complete Fusion of the Mitochondrial Inner-Membrane
Ge, Y., Shi, X., Boopathy, S., McDonald, J., Smith, A. W., & Chao, L. H. (2020) · eLife · doi:10.7554/elife.50973 · Cited by 174
Exercise and mitochondrial dynamics: keeping in shape with ROS and AMPK
Trewin, A., Berry, B., & Wojtovich, A. (2018) · Antioxidants · doi:10.3390/antiox7010007 · Cited by 129
Metadata
- Authors
- Lee, H., Smith, S. B., & Yoon, Y.
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 2017-04
- Volume
- 292
- Issue
- 17
- Pages
- 7115-7130
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W2602278861
- Cited by
- 184
- References
- 16
- FWCI
- 6.21
- 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: The short variant of the mitochondrial dynamin OPA1 maintains mitochondrial energetics and cristae structure. https://app.cochat.ai/papers/10.1074/jbc.m116.762567
- The paper
- Lee, H., Smith, S. B., & Yoon, Y. (2017). The short variant of the mitochondrial dynamin OPA1 maintains mitochondrial energetics and cristae structure. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m116.762567
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.
