Ontology highlight
ABSTRACT:
SUBMITTER: Chen Y
PROVIDER: S-EPMC3128277 | biostudies-literature | 2011 Jun
REPOSITORIES: biostudies-literature
Chen Yaohui Y Zhang Jinye J Lin Yan Y Lei Qunying Q Guan Kun-Liang KL Zhao Shimin S Xiong Yue Y
EMBO reports 20110513 6
Mitochondria manganese superoxide dismutase (SOD2) is an important antioxidant enzyme, deficiency of which is associated with various human diseases. The known primary regulation of SOD2 is through transcriptional activation. Here, we report that SOD2 is acetylated at Lys 68 and that this acetylation decreases SOD2 activity. Mitochondrial deacetylase SIRT3 binds to, deacetylates and activates SOD2. Increase of reactive oxygen species (ROS) levels stimulates SIRT3 transcription, leading to SOD2 d ...[more]