This document describes biochemical pathways for producing a difunctional product having an odd number of carbon atoms in vitro or in a recombinant host, or salts or derivatives thereof, by forming two terminal functional groups selected from carboxyl, amine, formyl, and hydroxyl groups in an aliphatic carbon chain backbone having an odd number of carbon atoms synthesized from (i) acetyl-CoA and propanedioyl-CoA via one or more cycles of methyl ester shielded carbon chain elongation or (ii) propanedioyl-[acp] via one or more cycles of methyl ester shielded carbon chain elongation. The biochemical pathways and metabolic engineering and cultivation strategies described herein rely on enzymes or homologs accepting methyl ester shielded aliphatic carbon chain backbones and maintaining the methyl ester shield for at least one further enzymatic step following one or more cycles of methyl ester shielded carbon chain elongation.
本文档描述了在体外或在
重组宿主中通过形成选择自羧基、胺基、甲酰基和羟基中的两个末端功能基团在具有奇数碳原子数量的脂肪碳链骨架中合成的具有双功能产品的生化途径,或其盐或衍
生物,该脂肪碳链骨架是通过从(i)
乙酰辅酶A和丙二酰
辅酶A经过一个或多个甲酯屏蔽的碳链延长循环或(ii)丙二酰-[acp] 经过一个或多个甲酯屏蔽的碳链延长循环合成的奇数碳原子。本文中描述的生化途径、代谢工程和培养策略依赖于接受甲酯屏蔽脂肪碳链骨架并在一个或多个甲酯屏蔽的碳链延长循环之后至少保持甲酯屏蔽以进行至少一个进一步的酶催化步骤的酶或同源体。