Work

Exploration and mutagenesis of the germacrene A synthase from Solidago canadensis to enhance germacrene A production in E. coli

Year: 2025

Type: article

Abstract: . By introducing the heterogeneous MVA pathway to enrich the FPP pool, the strain yielded 147 mg/L of GA in shake flasks which represented 2.98-fold improvement over the initial one. Moreover, combining molecular docking with phylogeny analysis of ScGAS largely narrowed down the category of its key residues' mutagenesis. The Y376L mutant showed the highest yield of 487 mg/L which was almost 10-fold higher than the initial yield. These results indicate that diverting the metabolism of the host and enzyme mutagenesis based on the combination of molecular docking and phylogeny analysis are of great value to constructing terpenoids chassis.

Source: Synthetic and Systems Biotechnology

DOI: 10.1016/j.synbio.2025.02.015