甲酸钠
格式化
甲醇
甲基杆菌
化学
异源的
辅因子
产量(工程)
代谢通量分析
组合化学
生物化学
有机化学
新陈代谢
催化作用
酶
材料科学
冶金
基因
16S核糖体RNA
作者
Lanyu Cui,Jing Yang,Wei‐Fan Liang,Song Yang,Chong Zhang,Xin‐Hui Xing
标识
DOI:10.1002/biot.202200402
摘要
Methylobacterium extorquens AM1 (AM1), a model strain of methylotrophic cell factories (MeCFs) could be used to produce fine chemicals from methanol. Synthesis of heterologous products usually needs reducing cofactors, but AM1 growing on methanol lack reducing power. Formate could be used as a reducing agent. In this study, mevalonic acid (MEV) yield of 0.067 gMEV/g methanol was reached by adding 10 mmol L-1 sodium formate in MEV accumulating stage (at 72 h). The yield was improved by 64.57%, and represented the highest yield reported to date. 13 C-labeling experiments revealed global effects of sodium formate on metabolic pathways in engineered Methylobacterium extorquens AM1. Sodium formate significantly increased the ratios of reducing equivalents, enhanced the metabolic rate of pathways demanding reducing cofactors and redirected the carbon flux to MEV synthesis. As a result, coupling formate to methanol-based production provide a promising way for converting C1 substances to useful chemical products.
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