Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan.
Org Biomol Chem. 2024 Aug 22;22(33):6713-6717. doi: 10.1039/d4ob00907j.
Penicillin-binding protein-type thioesterases (PBP-type TEs) catalyze head-to-tail macrolactamization in bacterial nonribosomal peptide biosynthesis. Here the scope of FlkO, a new PBP-type TE in cyclofaulknamycin biosynthesis, was thoroughly evaluated. The preference for small residues at the substrate C-terminus was consistent with the decreased volume of its putative substrate-binding pocket.
青霉素结合蛋白型硫酯酶(PBP-type TEs)在细菌非核糖体肽生物合成中催化头到尾的大环内酯化。在这里,对环伐尔博霉素生物合成中新的 PBP-type TE FlkO 的作用范围进行了全面评估。底物 C 末端的小残基偏好与推测的底物结合口袋的体积减小一致。