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The Assembly Factor SDHAF2 Is Dispensable for Flavination of the Catalytic Subunit of Mitochondrial Complex II in Breast Cancer Cells
- 1.0468544 - BTÚ 2017 RIV US eng J - Journal Article
Bezawork-Geleta, A. - Dong, L. - Rohlena, Jakub - Neužil, Jiří
The Assembly Factor SDHAF2 Is Dispensable for Flavination of the Catalytic Subunit of Mitochondrial Complex II in Breast Cancer Cells.
Journal of Biological Chemistry. Roč. 291, č. 41 (2016), s. 21414-21420. ISSN 0021-9258. E-ISSN 1083-351X
R&D Projects: GA ČR GA15-02203S; GA ČR(CZ) GA16-22823S; GA MŠMT(CZ) ED1.1.00/02.0109
Institutional support: RVO:86652036
Keywords : cancer biology * mitochondrial respiratory chain complex * SUCCINATE-UBIQUINONE OXIDOREDUCTASE
Subject RIV: EB - Genetics ; Molecular Biology
Impact factor: 4.125, year: 2016
Mitochondrial complex II or succinate dehydrogenase (SDH) is at the crossroads of oxidative phosphorylation and the tricarboxylic acid cycle. It has been shown that Sdh5 (SDHAF2/SDH5 in mammals) is required for flavination of the subunit Sdh1 (SDHA in human cells) in yeast. Here we demonstrate that in human breast cancer cells, SDHAF2/SDH5 is dispensable for SDHA flavination. In contrast to yeast, CRISPR-Cas9 nickase-mediated SDHAF2 KO breast cancer cells feature flavinated SDHA and retain fully assembled and functional complex II, as well as normal mitochondrial respiration. Our data show that SDHA flavination is independent of SDHAF2 in breast cancer cells, employing an alternative mechanism.
Permanent Link: http://hdl.handle.net/11104/0266364
Number of the records: 1