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    • 48. 发明申请
    • Method for producing a heterocyclic compound and an aromatic carboxylic acid having one or more hydroxyl groups, and modified aromatic ring dioxygenase
    • 具有一个以上羟基的杂环化合物和芳香族羧酸的制造方法以及改性芳香环双加氧酶
    • US20040086983A1
    • 2004-05-06
    • US09950822
    • 2001-09-13
    • Norihiko MisawaKazutoshi ShindoHiroshi OkazakiKensuke FurukawaSueharu Horinouchi
    • C12P017/10C12P017/12
    • C12N9/0069C12P7/22C12P17/00
    • An objective of the present invention is to provide a method of producing hydroxylated heterocyclic compounds and hydroxylated aromatic carboxylic acids by bioengineering technique, and modified enzymes which can be used for this method. A method of producing hydroxylated heterocyclic compounds or hydroxylated aromatic carboxylic acids comprises reacting an aromatic ring dioxygenase with heterocyclic compounds or aromatic carboxylic acids to hydroxylate these compounds. An enzyme according to the present invention is an aromatic ring dioxygenase comprising an null-subunit consisting of the amino acid sequence of SEQ ID NO: 2, which is modified according to the null-subunit of the biphenyl dioxygenase derived from the strain Burkholderia cepacia LB400, a null-subunit consisting of the amino acid sequence of SEQ ID NO: 4, and a ferredoxin consisting of the amino acid sequence of SEQ ID NO: 6, and a ferredoxin reductase consisting of the amino acid sequence of SEQ ID NO: 8.
    • 本发明的目的是提供通过生物工程技术生产羟基化杂环化合物和羟基化芳族羧酸的方法,以及可用于该方法的改性酶。 生成羟基化杂环化合物或羟基化芳族羧酸的方法包括使芳环双加氧酶与杂环化合物或芳族羧酸反应,使这些化合物羟化。 根据本发明的酶是包含由SEQ ID NO:2的氨基酸序列组成的α-亚基的芳环双加氧酶,其根据源自洋葱伯克霍尔德菌LB400的联苯双加氧酶的α-亚基进行修饰 ,由SEQ ID NO:4的氨基酸序列组成的β亚基和由SEQ ID NO:6的氨基酸序列组成的铁氧还蛋白,以及由SEQ ID NO:8的氨基酸序列组成的铁氧还蛋白还原酶 。