Mimin Zhang, Peng Lu, Tohru Terada, Miaomiao Sui, Haruka Furuta, Kilico Iida, Yukie Katayama, Yi Lu, Ken Okamoto, Michio Suzuki, Tomiko Asakura, Kentaro Shimizu, Fumihiko Hakuno, Shin-Ichiro Takahashi, Norimoto Shimada, Jinwei Yang, Tsutomu Ishikawa, Jin Tatsuzaki, Koji Nagata
Sirtuin 1 (SIRT1), an NAD+ -dependent deacetylase, is a crucial regulator that produces multiple physiological benefits, such as the prevention of cancer and age-related diseases. SIRT1 is activated by sirtuin-activating compounds (STACs). Here, we report that quercetin 3,5,7,3',4'-pentamethyl ether (KPMF-8), a natural STAC from Thai black ginger Kaempferia parviflora, interacts with SIRT1 directly and stimulates SIRT1 activity by enhancing the binding affinity of SIRT1 with Ac-p53 peptide, a native substrate peptide without a fluorogenic moiety...
February 19, 2021: Communications Biology