SUMO-specific protease 1 regulates mitochondrial biogenesis through PGC-1α

Rong Cai, Tingting Yu, Chao Huang, Xuefeng Xia, Xiaobing Liu, Jianmin Gu, Song Xue, Edward T H Yeh, Jinke Cheng

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


Peroxisome proliferator-activated receptor γ (PPARγ) coactivator 1α (PGC-1α) is a master regulator of mitochondrial biogenesis in response to changes in the cellular environment, physiological or pathological status of mammals. PGC-1α is known to be modified by SUMO (Small Ubiquitin-like Modifier). However, it is not known whether SUMOylation could affect the function of PGC-1α in mitochondrial biogenesis and that how PGC-1α SUMOylation is regulated. In this study, we have identified the role of Sentrin/SUMO-specific protease 1 (SENP1) as a specific SUMO protease to regulate SUMOylation status of PGC-1α. More importantly, we have also found that SENP1 promotes PGC-1α transcription activity, which is essential for the expression of mitochondrial genes and subsequently mitochondrial biogenesis. Thus, we reveal that the SUMOylation of PGC-1α controlled by SENP1 plays an important role in mitochondrial biogenesis and function.

Original languageEnglish (US)
Pages (from-to)44464-44470
Number of pages7
JournalJournal of Biological Chemistry
Issue number53
StatePublished - Dec 28 2012

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology


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