Examining the Role of Threonine Phosphorylation in Ubiquitin’s Function Using Chemical Protein Synthesis - Bingji Wang; Chuntong Li; Fangyu Zhao; Luyu Shi; Xu Li; Yijie Liu; Shuzhe Sun; Ligong Yuan; Maoshen Sun; Yingyue Zhang; Jing Shi; Lu-Jun Liang (JACS Au)