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In vivo mitochondrial matrix proteome profiling reveals RTN4IP1/OPA10 as an antioxidant NADPH oxidoreductase
Open accessPreprint — published as 10.1038/s41589-023-01452-w · Paper page
Abstract
Targeting proximity labeling enzymes to specific cellular locations is a viable strategy for profiling subcellular proteomes. Here, we generated transgenic mice expressing a mitochondrial matrix-targeted ascorbate peroxidase (MAX-Tg) to analyze tissue-specific matrix proteomes. Desthiobiotin-phenol labeling of muscle tissues from MAX-Tg mice allowed for efficient profiling of mitochondrial-localized proteins in these tissues. Comparative analysis of matrix proteomes from MAX-Tg muscle tissues revealed differential enrichment of mitochondrial proteins related to energy production in between different muscle groups. Reticulon 4 interacting protein 1 (RTN4IP1), also known as Optic Atrophy-10 (OPA10), was highly enriched in the cardiac and soleus muscles and was found to localize to the mitochondrial matrix via a strong mitochondrial targeting sequence at its N-terminus. Protein structure analysis revealed that RTN4IP1 is an NADPH oxidoreductase with structural homology to bacterial quinone oxidoreductase. Enzymatic activity assays, interactome analysis, and metabolite profiling confirmed a function for RTN4IP1 in coenzyme Q (CoQ) biosynthesis. Rtn4ip1 -knockout C2C12 cells had reduced CoQ9 levels, were vulnerable to oxidative stress, and had decreased oxygen consumption rates and ATP production. Collectively, RTN4IP1 is a mitochondrial antioxidant NADPH oxidoreductase supporting oxidative phosphorylation activity in muscle tissue.
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Metadata
- Authors
- Park, I., Kim, K.-E., Kim, J., Bae, S., Jung, M., Choi, J., Kwak, C., Kang, M.-G., Yoo, C.-M., Mun, J. Y., Liu, K.-H., Kim, J.-S., Suh, J. M., & Rhee, H.-W.
- Affiliations
- Seoul National University (KR)
- Kyungpook National University (KR)
- Korea Brain Research Institute (KR)
- Korea Advanced Institute of Science and Technology (KR)
- Corresponding author
- Kim, Jeesoo
- Kim, Jong-Seo
- Suh, Jae Myoung
- Rhee, Hyun-Woo
- ORCID
- Venue
- Nature Chemical Biology
- Publisher
- openRxiv
- Published
- 2021-10-14
- Volume
- 20
- Issue
- 2
- Pages
- 221-233
- ISSN
- 1552-4450 (ISSN-L)
- PMC
- PMC10830421
- OpenAlex
- W4387965110
- Cited by
- 39
- References
- 1
- Citations by year
- 2026: 12 · 2025: 14 · 2024: 8 · 2023: 3 · 2022: 2
- FWCI
- 3.30
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- cc-by
- Locations
- Nature Chemical Biology (publishedVersion, cc-by)
- bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Funders
- Korea Brain Research Institute (BR-01-03)
- National Research Foundation (2021R1A2C2007573, 2018R1A2A3075389, NRF-2019M3E5D3073104, NRF-2021R1A5A1033157)
- Seoul National University (IBS-R008-D1)
- Korea Health Industry Development Institute (HU20C0326)
- Korea Research Institute of Bioscience and Biotechnology (KGM5392212)
- National Research Foundation of Korea (NRF-2018R1A2A3075389, 2018R1A2A3075389, NRF-2022M3A9I2082294, NRF-2022M3E5E8081185, IBS-R008-D1, NRF-2019R1A2C3008463, NRF-2022R1C1C2004982, NRF-2021R1A2C2009336, 2022M3A9I2082294, NRF-2017R1A5A1015366, HU20C0326, NRF 2022R1A2B5B03001658, 23-BR-04-04, 2019M3E5D3073104, NRF-2019M3E5D3073104, NRF-2021R1A5A1033157, NRF-2022M3H9A2096199, 2019R1A2C2089484, 2021R1A5A1033157, 2017K1A1A2013124, NRF 2017K1A1A2013124, 2017R1A5A1015366)
- Korea Advanced Institute of Science and Technology
- Institute for Basic Science (IBS-R008-D1, R008-D1)
- Ministry of Science and ICT, South Korea (2022M3A9I2082294, IBS-R008-D1, NRF‐2017R1A5A1015366, 21-BR-01-11, 2021R1A5A1033157, NRF-2021R1A5A1033157, NRF-2019M3E5D3073104, 23-BR-01-03)
- Samsung Science and Technology Foundation (SSTF-BA2201-08)
- Samsung
- Korea Evaluation Institute of Industrial Technology
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Coenzyme Q10 studies and effects
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Biotin and Related Studies
- Keywords
- coenzyme Q biosynthesis, mitochondrial matrix, NADPH oxidoreductase, ascorbate peroxidase, muscle respiration
- MeSH terms
- Animals, Carrier Proteins, Drosophila melanogaster, Mice, Transgenic, Mitochondria, Oxidoreductases, Ubiquinone, Proteome, Mitochondrial Proteins, Mice
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