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    • 2. 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。
    • 3. 发明授权
    • Transformants producing substance pf1022 derivatives, methods for producing the same, and novel biosynthesis genes
    • 产生物质pf1022衍生物的转化体,其制备方法和新的生物合成基因
    • US07432102B2
    • 2008-10-07
    • US10472587
    • 2002-03-22
    • Koji YanaiNaomi SumidaManabu WatanabeTatsuki MoriyaTakeshi Murakami
    • Koji YanaiNaomi SumidaManabu WatanabeTatsuki MoriyaTakeshi Murakami
    • C12N1/00C12P1/00C12P17/00C12P15/00C12P13/00C12P7/00C12P7/24C12P1/02
    • C12P17/14C12N15/52
    • An objective of the present invention is to provide a method for producing substance PF1022 derivatives, in particular PF1022-220 and PF1022-260, by a direct fermentation method, and a transformant to be used for this method. According to the present invention, there is provided a transformant producing substance FF1022 derivatives, which can be obtained by introducing a genes involved in a biosynthetic pathway from chorismic acid to p-aminophenylpyruvic acid, including a papA gene encoding 4-amino-4-deoxychorismate synthase. which gene comprises the DNA sequence encoding the amino acid sequence of SEQ ID NO: 2; a papB gene encoding 4-amino-4-deoxyclaismate mutase, which gene comprises the DNA sequence encoding the amino acid sequence of SEQ ID NO: 4; and a papC gene encoding 4-amino-4-deoxyprepbenate dehydrogenase, which gene comprises the DNA sequence encoding the amino acid sequence of SEQ ID NO: 6, into a phenylalanine auxotrophic host induced from an organism that produces a substance PF1022. According to the present invention, there is also provided a process of producing substance PF1022 derivative, comprising steps of culturing the above-mentioned transformant and collecting the substance PF1022 derivatives.
    • 本发明的目的是提供通过直接发酵方法生产物质PF1022衍生物,特别是PF1022-220和PF1022-260的方法,以及用于该方法的转化体。 根据本发明,提供了转化体生产物质FF1022衍生物,其可以通过将参与生物合成途径的基因从氯磺酸引入对氨基苯基丙酮酸而获得,包括编码4-氨基-4-脱氧胸苷酸的papA基因 合酶。 该基因包含编码SEQ ID NO:2的氨基酸序列的DNA序列; 编码4-氨基-4-脱氧胆酸酯变位酶的papB基因,该基因包含编码SEQ ID NO:4的氨基酸序列的DNA序列; 和编码4-氨基-4-脱氧降磷酸脱氢酶的papC基因,该基因包含编码SEQ ID NO:6的氨基酸序列的DNA序列,由产生PF1022的生物体诱导的苯丙氨酸营养缺陷型宿主中。 根据本发明,还提供了生产物质PF1022衍生物的方法,包括培养上述转化体并收集物质PF1022衍生物的步骤。