Enzymatic Stereoselective Nucleophilic Cyclization Governs Atypical Spirotetronate Assembly in Lucensimycin A Biosynthesis - Meng Yu Xi; Bo Zhang; Ting Peng; Xiu Xiu Ma; Ao Zhu; Zi Jie Wang; Yucheng Gu; Ren Xiang Tan; Hui Ming Ge (Journal of the American Chemical Society, 2025)