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    • 1. 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。
    • 8. 发明授权
    • Saponin-digesting enzymes, genes thereof and soyasapogenol B mass production system
    • 皂苷消化酶,其基因和大豆皂甙B大量生产系统
    • US07022508B2
    • 2006-04-04
    • US10479787
    • 2002-06-06
    • Manabu WatanabeNaoki MidoTakayoshi TamuraNaomi SumidaTakashi Yaguchi
    • Manabu WatanabeNaoki MidoTakayoshi TamuraNaomi SumidaTakashi Yaguchi
    • C12Q1/68C07H21/04C12N9/24C12P33/00C12R1/885
    • C12N9/2402C12N15/8243C12P33/00
    • The present invention provides a protein having saponin-decomposing activity, more specifically a protein which can decompose a glycoside having soyasapogenol B as an aglycone to produce soyasapogenol B, a polynucleotide encoding such a protein, and a method of producing soyasapogenol B on a large scale using the same. A protein according to the present invention are concerned with (a), (b) or (c), namely (a) a protein comprising an amino acid sequence selected from the group consisting of the amino acid sequences shown in SEQ ID NOs: 2, 4, and 6; (b) a protein that has at least 50% homology to the protein comprising the amino acid sequence of the sequence described in (a) and having saponin-decomposing activity; or (c) a protein comprising a modified amino acid sequence of the sequence described in (a) that has one or more amino acid residues deleted, substituted, inserted, or added and having saponin-decomposing activity.
    • 本发明提供具有皂苷分解活性的蛋白质,更具体地说,可以分解具有大豆皂甙元酚B作为糖苷配基的糖苷以制备大豆皂甙元B的蛋白质,编码这种蛋白质的多核苷酸以及大规模生产大豆皂甙元B的方法的蛋白质 使用相同 根据本发明的蛋白质涉及(a),(b)或(c),即(a)包含选自SEQ ID NO:2所示的氨基酸序列的氨基酸序列的蛋白质 ,4和6; (b)与包含(a)中描述的序列的氨基酸序列的蛋白质具有至少50%同源性且具有皂苷分解活性的蛋白质; 或(c)包含(a)中描述的具有一个或多个氨基酸残基被缺失,取代,插入或添加并具有皂角苷分解活性的修饰的氨基酸序列的蛋白质。