COX assembly factor ccdc56 regulates mitochondrial morphology by affecting mitochondrial recruitment of Drp1

Reiko Ban-Ishihara, Shiho Tomohiro-Takamiya, Motohiro Tani, Jacques Baudier, Naotada Ishihara, Osamu Kuge

研究成果: ジャーナルへの寄稿学術誌査読

6 被引用数 (Scopus)

抄録

Mitochondria are dynamic organelles that alter their morphology in response to cellular signaling and differentiation through balanced fusion and fission. In this study, we found that the mitochondrial inner membrane ATPase ATAD3A interacted with ccdc56/MITRAC12/COA3, a subunit of the cytochrome oxidase (COX)-assembly complex. Overproduction of ccdc56 in HeLa cells resulted in fragmented mitochondrial morphology, while mitochondria were highly elongated in ccdc56-repressed cells by the defective recruitment of the fission factor Drp1. We also found that mild and chronic inhibition of COX led to mitochondrial elongation, as seen in ccdc56-repressed cells. These results indicate that ccdc56 positively regulates mitochondrial fission via regulation of COX activity and the mitochondrial recruitment of Drp1, and thus, suggest a novel relationship between COX assembly and mitochondrial morphology.

本文言語英語
論文番号37349
ページ(範囲)3126-3132
ページ数7
ジャーナルFEBS Letters
589
20
DOI
出版ステータス出版済み - 10月 7 2015

!!!All Science Journal Classification (ASJC) codes

  • 生物理学
  • 構造生物学
  • 生化学
  • 分子生物学
  • 遺伝学
  • 細胞生物学

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