AmAT19, an Acetyltransferase from Astragalus Membranaceus, Catalyses Specific 6α-OH Acetylation for Tetracyclic Triterpenes and Steroids

Linlin Wang, Kuan Chen, Zilong Wang, Yang Yi, Meng Zhang, Aobulikasimu Hasan, Yi Kuang, Sharpkate Shaker, Rong Yu, Haotian Wang, Haiyang Liu, Min Ye, Xue Qiao