OPA1 mitochondrial dynamin like GTPase
Last updated 8 May 2023
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The OPA1 gene provides instructions for making a protein that is found in cells and tissues throughout the body. The OPA1 protein is active in the inner membrane of cell structures called mitochondria, which are the energy-producing centers in cells. Mitochondria are dynamic structures that change shape through processes called fission (splitting into smaller pieces) and fusion (combining pieces). Changes in shape are necessary for mitochondrial function and the production of new mitochondria. The OPA1 protein helps to regulate the shape of mitochondria by playing a key role in the fusion process.
Normal function
The OPA1 gene provides instructions for making a protein that is found in cells and tissues throughout the body. The OPA1 protein is active in the inner membrane of cell structures called mitochondria, which are the energy-producing centers in cells. Mitochondria are dynamic structures that change shape through processes called fission (splitting into smaller pieces) and fusion (combining pieces). Changes in shape are necessary for mitochondrial function and the production of new mitochondria. The OPA1 protein helps to regulate the shape of mitochondria by playing a key role in the fusion process.
The OPA1 protein is also involved in a process that takes place in mitochondria called oxidative phosphorylation, from which cells derive much of their energy. Additionally, the OPA1 protein plays a role in the maintenance of the DNA within mitochondria, called mitochondrial DNA (mtDNA), and in controlled cell death (apoptosis).
Conditions referring to this gene or chromosome
Other names
dynamin-like 120 kDa protein, mitochondrial
FLJ12460
KIAA0567
MGM1
mitochondrial dynamin-like GTPase
NPG
NTG
OPA1_HUMAN
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Further reading and references
- OPA1 mitochondrial dynamin like GTPase; MedlinePlus, National Library of Medicine.
- Amati-Bonneau P, Milea D, Bonneau D, Chevrollier A, Ferre M, Guillet V, Gueguen N, Loiseau D, de Crescenzo MA, Verny C, Procaccio V, Lenaers G, Reynier P. OPA1-associated disorders: phenotypes and pathophysiology. Int J Biochem Cell Biol. 2009 Oct;41(10):1855-65. doi: 10.1016/j.biocel.2009.04.012. Epub 2009 Apr 21.
- Amati-Bonneau P, Valentino ML, Reynier P, Gallardo ME, Bornstein B, Boissiere A, Campos Y, Rivera H, de la Aleja JG, Carroccia R, Iommarini L, Labauge P, Figarella-Branger D, Marcorelles P, Furby A, Beauvais K, Letournel F, Liguori R, La Morgia C, Montagna P, Liguori M, Zanna C, Rugolo M, Cossarizza A, Wissinger B, Verny C, Schwarzenbacher R, Martin MA, Arenas J, Ayuso C, Garesse R, Lenaers G, Bonneau D, Carelli V. OPA1 mutations induce mitochondrial DNA instability and optic atrophy 'plus' phenotypes. Brain. 2008 Feb;131(Pt 2):338-51. doi: 10.1093/brain/awm298. Epub 2007 Dec 24.
- Bonneau D, Colin E, Oca F, Ferre M, Chevrollier A, Gueguen N, Desquiret-Dumas V, N'Guyen S, Barth M, Zanlonghi X, Rio M, Desguerre I, Barnerias C, Momtchilova M, Rodriguez D, Slama A, Lenaers G, Procaccio V, Amati-Bonneau P, Reynier P. Early-onset Behr syndrome due to compound heterozygous mutations in OPA1. Brain. 2014 Oct;137(Pt 10):e301. doi: 10.1093/brain/awu184. Epub 2014 Jul 10. No abstract available.
- Chao de la Barca JM, Prunier-Mirebeau D, Amati-Bonneau P, Ferre M, Sarzi E, Bris C, Leruez S, Chevrollier A, Desquiret-Dumas V, Gueguen N, Verny C, Hamel C, Milea D, Procaccio V, Bonneau D, Lenaers G, Reynier P. OPA1-related disorders: Diversity of clinical expression, modes of inheritance and pathophysiology. Neurobiol Dis. 2016 Jun;90:20-6. doi: 10.1016/j.nbd.2015.08.015. Epub 2015 Aug 23.
- Delettre-Cribaillet C, Hamel CP, Lenaers G. Optic Atrophy Type 1 - RETIRED CHAPTER, FOR HISTORICAL REFERENCE ONLY. 2007 Jul 13 [updated 2015 Nov 12]. In: Adam MP, Bick S, Mirzaa GM, Wallace SE, Amemiya A, editors. GeneReviews(R) [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2026. Available from http://www.ncbi.nlm.nih.gov/books/NBK1248/
- Ferre M, Bonneau D, Milea D, Chevrollier A, Verny C, Dollfus H, Ayuso C, Defoort S, Vignal C, Zanlonghi X, Charlin JF, Kaplan J, Odent S, Hamel CP, Procaccio V, Reynier P, Amati-Bonneau P. Molecular screening of 980 cases of suspected hereditary optic neuropathy with a report on 77 novel OPA1 mutations. Hum Mutat. 2009 Jul;30(7):E692-705. doi: 10.1002/humu.21025.
- Ferre M, Caignard A, Milea D, Leruez S, Cassereau J, Chevrollier A, Amati-Bonneau P, Verny C, Bonneau D, Procaccio V, Reynier P. Improved locus-specific database for OPA1 mutations allows inclusion of advanced clinical data. Hum Mutat. 2015 Jan;36(1):20-5. doi: 10.1002/humu.22703. Epub 2014 Dec 1.
- Formichi P, Radi E, Giorgi E, Gallus GN, Brunetti J, Battisti C, Rufa A, Dotti MT, Franceschini R, Bracci L, Federico A. Analysis of opa1 isoforms expression and apoptosis regulation in autosomal dominant optic atrophy (ADOA) patients with mutations in the opa1 gene. J Neurol Sci. 2015 Apr 15;351(1-2):99-108. doi: 10.1016/j.jns.2015.02.047. Epub 2015 Mar 6.
- Schimpf S, Fuhrmann N, Schaich S, Wissinger B. Comprehensive cDNA study and quantitative transcript analysis of mutant OPA1 transcripts containing premature termination codons. Hum Mutat. 2008 Jan;29(1):106-12. doi: 10.1002/humu.20607.
- Yu-Wai-Man P, Griffiths PG, Gorman GS, Lourenco CM, Wright AF, Auer-Grumbach M, Toscano A, Musumeci O, Valentino ML, Caporali L, Lamperti C, Tallaksen CM, Duffey P, Miller J, Whittaker RG, Baker MR, Jackson MJ, Clarke MP, Dhillon B, Czermin B, Stewart JD, Hudson G, Reynier P, Bonneau D, Marques W Jr, Lenaers G, McFarland R, Taylor RW, Turnbull DM, Votruba M, Zeviani M, Carelli V, Bindoff LA, Horvath R, Amati-Bonneau P, Chinnery PF. Multi-system neurological disease is common in patients with OPA1 mutations. Brain. 2010 Mar;133(Pt 3):771-86. doi: 10.1093/brain/awq007. Epub 2010 Feb 15.
- Zanna C, Ghelli A, Porcelli AM, Karbowski M, Youle RJ, Schimpf S, Wissinger B, Pinti M, Cossarizza A, Vidoni S, Valentino ML, Rugolo M, Carelli V. OPA1 mutations associated with dominant optic atrophy impair oxidative phosphorylation and mitochondrial fusion. Brain. 2008 Feb;131(Pt 2):352-67. doi: 10.1093/brain/awm335.
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