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    • 90. 发明授权
    • Method of production of L-amino acids
    • 生产L-氨基酸的方法
    • US08119372B2
    • 2012-02-21
    • US12466466
    • 2009-05-15
    • Brigitte BatheWilfried Claes
    • Brigitte BatheWilfried Claes
    • C12P13/04C12P13/08C12P21/06C12M1/26C12N1/20
    • C12N9/88C12N9/1217C12P13/06C12P13/08C12Y203/03001C12Y207/02004
    • An isolated polynucleotide encodes a polypeptide comprising the amino acid sequence of SEQ ID NO: 2, with the L-aspartic acid at position 5 of the amino acid sequence replaced by another proteinogenic amino acid, and possesses citrate synthase activity. In addition, a vector comprises the polynucleotide and a bacterium comprises the vector. An isolated polynucleotide comprises a nucleotide sequence comprising, from position 1 to 39, the nucleotide sequence corresponding to position 1 to 39 of SEQ ID NO: 11, from position 40 to 105, a nucleotide sequence encoding the amino acid sequence of SEQ ID NO: 12, with each proteinogenic amino acid except L-aspartic acid being present at position 5. A method of producing an L-amino acids is also described.
    • 分离的多核苷酸编码包含SEQ ID NO:2的氨基酸序列的多肽,氨基酸序列的第5位的L-天冬氨酸被另一种蛋白原性氨基酸替代,并具有柠檬酸合酶活性。 此外,载体包含多核苷酸,细菌包含载体。 分离的多核苷酸包含从位置1-39包含对应于SEQ ID NO:11的位置1-39,位置40至105的核苷酸序列的核苷酸序列,编码SEQ ID NO: 12,除了L-天冬氨酸以外的各蛋白质氨基酸存在于位置5.还描述了L-氨基酸的生产方法。