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    • 10. 发明授权
    • Transformant producing secondary metabolite modified with functional group and novel biosynthesis genes
    • 用功能组和新生物合成基因修饰的转化体产生次级代谢产物
    • US07109018B1
    • 2006-09-19
    • US10089514
    • 2000-09-29
    • Koji YanaiKaoru OkakuraShohei YasudaManabu WatanabeKoichi MiyamotoNaoki MidohTakeshi Murakami
    • Koji YanaiKaoru OkakuraShohei YasudaManabu WatanabeKoichi MiyamotoNaoki MidohTakeshi Murakami
    • C12N1/20C12N5/10C07H21/04
    • C12N9/0004C12N9/88C12N9/90C12N15/52C12P13/001C12P13/02
    • An objective of the present invention is to provide a transformant altered so as to produce a secondary metabolite in which a benzene ring of the secondary product is modified at the para-position with a functional group containing a nitrogen atom. A transformant according to the present invention is a transformant of an organism producing a secondary metabolite having a benzene ring skeleton without substitution at the para-position with a functional group containing a nitrogen atom, said transformant being transformed by introducing genes involved in a biosynthetic pathway from chorismic acid to p-aminophenylpyruvic acid, including a gene encoding an amino acid sequence (SEQ ID NO: 2) having 4-amino-4-deoxychorismic acid synthase activity, a gene encoding an amino acid sequence (SEQ ID NO: 4) having 4-amino-4-deoxychorismic acid mutase activity and a gene encoding an amino acid sequence (SEQ ID NO: 6) having 4-amino-4-deoxyprephenic acid dehydrogenase activity, so as to produce a secondary metabolite having a benzene ring skeleton substituted at the para-position with a functional group containing a nitrogen atom. Another objective of the present invention is to provide a novel gene involved in the biosynthetic pathway from chorismic acid to p-aminophenylpyruvic acid. A novel gene according to the present invention comprises genes encoding the amino acid sequences of SEQ ID NOs: 2, 4 and 6 or modified sequences thereof.
    • 本发明的目的是提供改性的转化体,以便产生次级代谢物,其中次级产物的苯环在对位上用含氮原子的官能团改性。 根据本发明的转化体是产生具有苯环骨架的次级代谢物的生物体的转化体,其在具有含氮原子的官能团的对位没有取代,所述转化体通过引入参与生物合成途径的基因而转化 包括编码氨基酸序列(SEQ ID NO:4)的氨基酸序列(SEQ ID NO:2)的编码氨基酸序列(SEQ ID NO:4)的氨基酸序列(SEQ ID NO:2)的基因的氨基苯基丙酮酸, 具有4-氨基-4-脱氧酸性变位酶活性的基因,以及编码具有4-氨基-4-脱氧蝶呤酸脱氢酶活性的氨基酸序列(SEQ ID NO:6)的基因,以产生具有苯环骨架的次级代谢物 在对位上用含有氮原子的官能团取代。 本发明的另一个目的是提供一种涉及从氯酸到对氨基苯基丙酮酸生物合成途径的新基因。 根据本发明的新基因包含编码SEQ ID NO:2,4和6的氨基酸序列的基因或其修饰序列。