申请人:Burk Mark J.
公开号:US20110124911A1
公开(公告)日:2011-05-26
The invention provides a non-naturally occurring microbial organism having a muconate pathway having at least one exogenous nucleic acid encoding a muconate pathway enzyme expressed in a sufficient amount to produce muconate. The muconate pathway including an enzyme selected from the group consisting of a beta-ketothiolase, a beta-ketoadipyl-CoA hydrolase, a beta-ketoadipyl-CoA transferase, a beta-ketoadipyl-CoA ligase, a 2-fumarylacetate reductase, a 2-fumarylacetate dehydrogenase, a trans-3-hydroxy-4-hexendioate dehydratase, a 2-fumarylacetate aminotransferase, a 2-fumarylacetate aminating oxidoreductase, a trans-3-amino-4-hexenoate deaminase, a beta-ketoadipate enol-lactone hydrolase, a muconolactone isomerase, a muconate cycloisomerase, a beta-ketoadipyl-CoA dehydrogenase, a 3-hydroxyadipyl-CoA dehydratase, a 2,3-dehydroadipyl-CoA transferase, a 2,3-dehydroadipyl-CoA hydrolase, a 2,3-dehydroadipyl-CoA ligase, a muconate reductase, a 2-maleylacetate reductase, a 2-maleylacetate dehydrogenase, a cis-3-hydroxy-4-hexendioate dehydratase, a 2-maleylacetate aminoatransferase, a 2-maleylacetate aminating oxidoreductase, a cis-3-amino-4-hexendioate deaminase, and a muconate cis/trans isomerase. Other muconate pathway enzymes also are provided. Additionally provided are methods of producing muconate.
本发明提供了一种非自然存在的微生物有着至少一个外源核酸编码的足量表达黏酸途径酶以产生黏酸的黏酸途径微生物。黏酸途径包括以下酶的选择:β-酮巯基硫酰酶、β-酮己二酸-CoA水解酶、β-酮己二酸-CoA转移酶、β-酮己二酸-CoA连接酶、2-富马酰乙酸还原酶、2-富马酰乙酸脱氢酶、顺式-3-羟基-4-己烯二酸脱水酶、2-富马酰乙酸氨基转移酶、2-富马酰乙酸氨基氧化还原酶、顺式-3-氨基-4-己烯二酸脱氨酶、β-酮己二酸烯醇内酯水解酶、黏酸内酯异构酶、黏酸环异构酶、β-酮己二酸-CoA脱氢酶、3-羟基己二酰-CoA脱水酶、2,3-脱氢己二酰-CoA转移酶、2,3-脱氢己二酰-CoA水解酶、2,3-脱氢己二酰-CoA连接酶、黏酸还原酶、2-马来酰乙酸还原酶、2-马来酰乙酸脱氢酶、顺式-3-羟基-4-己烯二酸脱水酶、2-马来酰乙酸氨基转移酶、2-马来酰乙酸氨基氧化还原酶、顺式-3-氨基-4-己烯二酸脱氨酶和黏酸顺/反异构酶。还提供了其他黏酸途径酶。此外,还提供了生产黏酸的方法。