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    • 3. 发明申请
    • MODIFIED 6-PHOSPHOFRUCTO-1-KINASE OF THE FUNGUS ASPERGILLUS NIGER
    • 真菌US US ER ER ER ER ER ER ER ER ER ER ER ER
    • WO2005023854A3
    • 2005-06-09
    • PCT/SI2004000028
    • 2004-08-25
    • KEMIJSKI INSTLEGISA MATICBENCINA MOJCA
    • LEGISA MATICBENCINA MOJCA
    • C07K14/38C12N9/12C12N15/52C12P7/00
    • C12N9/1205
    • The invention deals with the shorter fragment of 6-phosphofructo-l-kinase (PFK1) with molecular mass between 49 and 55 kDa that is not significantly inhibited by citric acid and/or its salts and is post-translationally modified. The 49-52 kDa fragment that is formed by post-translational modifications of the fungal enzyme retains positive regulatory properties and is activated by specific activators, yet is no more sensitive to inhibition by citric acid a substance that in higher organisms acts as a feed back inhibitor. The invention describes a procedure that includes the introduction of the gene coding for a shorter fragment into the eukaryotic cells with an aim to increase the metabolic flow through the glycolysis and concomitantly to increase the rate of primary and secondary metabolites synthesis. The invention describes the use of the shorter fragment in biotechnological procedures for production of primary and secondary metabolites.
    • 本发明涉及分子质量在49和55kDa之间的6-磷酸果糖-1-激酶(PFK1)的较短片段,其不被柠檬酸和/或其盐显着抑制并被翻译后修饰。 通过真菌酶的翻译后修饰形成的49-52kDa片段保留阳性调节性质,并被特定的活化剂活化,但​​对柠檬酸的抑制没有更敏感,在高等生物体中作为反馈物质 抑制剂。 本发明描述了一种方法,其包括将编码较短片段的基因引入真核细胞中,目的是增加通过糖酵解的代谢流,并且伴随地增加初级和次级代谢物合成的速率。 本发明描述了生物技术方法中较短片段用于生产初级和次级代谢物的用途。