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    • 3. 发明授权
    • Methods for enhancing a secretion efficiency of recombinant foreign protein in yeast expression system
    • 提高酵母表达系统中重组外源蛋白的分泌效率的方法
    • US08298787B2
    • 2012-10-30
    • US12305768
    • 2006-06-20
    • Hyung-Kwon LimSung-Geun Kim
    • Hyung-Kwon LimSung-Geun Kim
    • C12P21/06C12P21/04
    • C12N15/81
    • Provided is a method for improving secretion efficiency of a recombinant foreign protein in a yeast expression system. The method includes transforming a yeast host with a recombinant foreign gene construct containing a galactose-inducible promoter, a secretion signal sequence and a gene encoding the foreign protein to construct a transformed yeast strain; and culturing the transformed yeast strain under the condition that the activity of the galactose-inducible promoter is controlled. Improved secretion efficiency of the foreign protein can be achieved by decreasing overexpression-induced insoluble precipitation of the recombinant foreign protein suffered by a conventional galactose-inducible promoter-based yeast expression system, via appropriate control of a level of galactose functioning as an inducer of the galactose-inducible promoter in cells. Due to improved secretion efficiency of the recombinant foreign protein, present invention makes a contribution to improvement in productivity of recombinant foreign proteins in the yeast expression system and reduction in production costs.
    • 提供了一种用于提高酵母表达系统中重组外源蛋白的分泌效率的方法。 该方法包括用包含半乳糖诱导型启动子,分泌信号序列和编码外源蛋白的基因的重组外源基因构建体来转化酵母宿主以构建转化的酵母菌株; 并在控制半乳糖诱导型启动子的活性的条件下培养转化的酵母菌株。 外源蛋白的分泌效率的提高可以通过减少由常规的基于半乳糖诱导型启动子的酵母表达系统所承受的重组外源蛋白的过度表达诱导的不溶性沉淀,通过适当控制作为诱导剂的诱导剂的半乳糖的水平来实现 半乳糖诱导型启动子。 由于重组外源蛋白的分泌效率提高,本发明对于提高酵母表达系统中重组外源蛋白质的生产力和生产成本的降低有所贡献。
    • 5. 发明申请
    • Methods For Enhancing A Secretion Efficiency Of Recombinant Foreign Protein In Yeast Expression System
    • 用于增强酵母表达系统中重组外源蛋白的分泌效率的方法
    • US20100184136A1
    • 2010-07-22
    • US12305768
    • 2006-06-20
    • Hyung-Kwon LimSung-Geun Kim
    • Hyung-Kwon LimSung-Geun Kim
    • C12P21/00
    • C12N15/81
    • Provided is a method for improving secretion efficiency of a recombinant foreign protein in a yeast expression system. The method comprises transforming a yeast host with a recombinant foreign gene construct comprising a galactose-inducible promoter, a secretion signal sequence and a gene encoding the foreign protein to construct a transformed yeast strain; and culturing the transformed yeast strain under the condition that the activity of the galactose-inducible promoter is controlled. Improved secretion efficiency of the foreign protein can be achieved by decreasing over-expression-induced insoluble precipitation of the recombinant foreign protein suffered by a conventional galactose-inducible promoter-based yeast expression system, via appropriate control of a level of galactose functioning as an inducer of the galactose-inducible promoter in cells. Due to improved secretion efficiency of the recombinant foreign protein, present invention makes a contribution to improvement in productivity of recombinant foreign proteins in the yeast expression system and reduction in production costs.
    • 提供了一种用于提高酵母表达系统中重组外源蛋白的分泌效率的方法。 该方法包括用包含半乳糖诱导型启动子,分泌信号序列和编码外源蛋白的基因的重组外源基因构建体来转化酵母宿主以构建转化的酵母菌株; 并在控制半乳糖诱导型启动子的活性的条件下培养转化的酵母菌株。 通过适当控制用作诱导剂的半乳糖水平,通过减少由常规的基于半乳糖诱导型启动子的酵母表达系统所承受的重组外源蛋白质的过表达诱导的不溶性沉淀,可以实现外源蛋白质的分泌效率的提高。 的半乳糖诱导型启动子。 由于重组外源蛋白的分泌效率提高,本发明对于提高酵母表达系统中重组外源蛋白质的生产力和生产成本的降低有所贡献。