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    • 6. 发明申请
    • PROCESS FOR PRODUCING L-LYSINE BY FERMENTATION
    • 通过发酵生产L-赖氨酸的方法
    • WO1995016042A1
    • 1995-06-15
    • PCT/JP1994001994
    • 1994-11-28
    • AJINOMOTO CO., INC.KOJIMA, HiroyukiOGAWA, YuriKAWAMURA, KazueSANO, Konosuke
    • AJINOMOTO CO., INC.
    • C12N15/54
    • C12Y104/01016C12N9/001C12N9/0016C12N9/1096C12N9/12C12N9/88C12P13/08C12Y103/01026
    • A process for producing L-Lysine by culturing in a suitable medium an Escherichia bacterium transformed by the introduction into its cells of a DNA coding for an Escherichia-derived dihydrodipicolinate synthase having such a variation as to be released from the feedback inhibition caused by L-lysine and a DNA coding for an Escherichia-derived aspartokinase III having such a variation as to be released from the feedback inhibition caused by L-lysine, preferably the above Escherichia bacterium which further has been enriched with a dihydrodipicolinate reductase gene and a coryneform-derived diaminopimelate dehydrogenase gene (or a succinyldiaminopimelate transaminase gene and a succinyldiaminopimelate deacylase gene), accumulating the produced L-lysine in the medium, and harvesting the accumulated L-lysine from the medium.
    • 通过在合适的培养基中培养将通过引入到其细胞中的编码由来自大肠杆菌的二氢吡啶二羧酸合成酶的DNA转化的埃希氏菌属细菌,产生L-赖氨酸的方法,其具有这样的变化,以从由L- 赖氨酸和编码大肠杆菌来源的天冬氨酸激酶III的DNA,其具有这样的变化,以便从由L-赖氨酸引起的反馈抑制中释放,优选上述进一步富含二氢吡啶二羧酸还原酶基因和棒状杆菌衍生物 二酰基庚二酸脱氢酶基因(或琥珀酰二氨基庚二酸转氨酶基因和琥珀酰二氨基庚二酸酯脱酰酶基因),在培养基中积聚所产生的L-赖氨酸,并从培养基中收集累积的L-赖氨酸。