Recombinant DNA having hydantoinase gene and carbamylase gene and process for producing amino acid
    15.
    发明申请
    Recombinant DNA having hydantoinase gene and carbamylase gene and process for producing amino acid 审中-公开
    具有乙内酰脲酶基因和氨基甲酰酶基因的重组DNA及其生产氨基酸的方法

    公开(公告)号:US20050112729A1

    公开(公告)日:2005-05-26

    申请号:US10961116

    申请日:2004-10-12

    摘要: The object of the present invention is to prepare a recombinant DNA efficiently co-expressing genes of enzymes such as HHase, and to produce an amino acid efficiently from hydantoin by utilizing such a recombinant DNA. The present invention provides a recombinant DNA having base sequences encoding the following gene regions (I) and (II) incorporated therein in a predetermined direction and in a predetermined order to produce an amino acid efficiently: (I) a gene region containing a base sequence encoding a hydantoinase gene and a trp promoter sequence located upstream of the base sequence encoding the hydantoinase gene regulating expression of the hydantoinase gene, and (II) a gene region containing a base sequence encoding a carbamylase gene and a trp promoter sequence located upstream of the base sequence encoding the carbamylase gene regulating expression of the carbamylase gene.

    摘要翻译: 本发明的目的是制备有效共同表达诸如HHase的酶的基因的重组DNA,并通过利用这种重组DNA从乙内酰脲有效地产生氨基酸。 本发明提供一种具有编码下述基因区(I)和(II)的碱基序列的重组DNA,其特征在于,在规定的方向和规定的顺序中并入其中,以有效地产生氨基酸:(I)含有碱基序列 编码乙内酰脲酶基因和位于编码修饰乙内酰脲酶基因表达的乙内酰脲酶基因的碱基序列上游的trp启动子序列,以及(II)含有编码氨基甲酰化酶基因的碱基序列和位于上游的trp启动子序列的基因区域 编码调节氨基甲酰酶基因表达的氨基甲酰酶基因的碱基序列。

    Method for producing an optically active amino acid
    19.
    发明申请
    Method for producing an optically active amino acid 审中-公开
    光学活性氨基酸的制造方法

    公开(公告)号:US20050214912A1

    公开(公告)日:2005-09-29

    申请号:US11091892

    申请日:2005-03-29

    CPC分类号: C12P13/225

    摘要: A method for producing an optically active amino acid comprising contacting a 5-substituted hydantoin with a group of enzymes including both a hydantoinase and a carbamoylase, wherein the method is carried out in an aqueous solution with a dissolved oxygen concentration of 1.5 ppm or less. Optically active amino acids such as D-tyrosine may be produced with high efficiency.

    摘要翻译: 一种光学活性氨基酸的制造方法,其特征在于,将5-取代的乙内酰脲与包括乙内酰脲酶和氨甲酰基酶的酶组合,其中所述方法在溶解氧浓度为1.5ppm以下的水溶液中进行。 可以高效率地生产D-酪氨酸等光活性氨基酸。