银杏酸(C15:1)(5毫克)产品是Ginkgolic acid is a naturally occurring compound. It inhibits protein SUMOylation both in vitro and in vivo without affecting in vivo ubiquitination. Binding assays with a fluorescently labeled probe shows that ginkgolic acid directly binds E1 and inhibits the formation of the E1-SUMO intermediate. Cell-permeable.