A method of producing vanillin comprising the steps of: (1) providing trans-ferulic acid or a salt thereof; and (2) providing trans-ferulate: CoASH ligase activity (enzyme activity I), trans-feruloyl ScoA hydratase activity (enzyme activity II), and 4-hydroxy-3-methoxyphenyl-&bgr;-hydroxy-propionyl SCoA (HMPHP SCoA) cleavage activity (enzyme activity III). Conveniently the enzymes are provided by
Pseudomonas fluorescens
Fe3 or a mutant or derivative thereof. Polypeptides with enzymes activities II and III and polynucleotides encoding said polypeptides. Use of said polypeptides or said polynucleotides in a method for producing vanillin.
一种生产
香草醛的方法,包括以下步骤:(1)提供反式
阿魏酸或其盐;(2)提供反式
阿魏酸:
辅酶A硫酯酰化酶活性(酶活性I)、反式阿魏酰
辅酶A水合酶活性(酶活性II)和
4-羟基-3-
甲氧基苯基-β-羟基-
丙酰辅酶A(HM
PHP SCoA)裂解酶活性(酶活性III)。方便起见,酶可以由
铁蓝单胞菌Fe3或其突变体或衍
生物提供。具有酶活性II和III的
多肽以及编码该
多肽的多核苷酸。使用所述
多肽或所述多核苷酸的方法生产
香草醛。