穿山龙薯蓣皂苷糖苷酶基因的亚克隆及表达 |
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引用本文: | 王庆宇,金凤燮,鱼红闪. 穿山龙薯蓣皂苷糖苷酶基因的亚克隆及表达[J]. 安徽农业科学, 2011, 39(10): 5799-5802 |
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作者姓名: | 王庆宇 金凤燮 鱼红闪 |
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作者单位: | 大连工业大学生物工程学院,辽宁大连,116034;大连工业大学生物工程学院,辽宁大连,116034;大连工业大学生物工程学院,辽宁大连,116034 |
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基金项目: | 国家自然科学基金项目(30371744、30470055、20476017);辽宁省科学技术基金项目(20042132);辽宁省教育厅创新团队项目(2009T007) |
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摘 要: | [目的]克隆并表达穿山龙薯蓣皂苷糖苷酶基因。[方法]将穿山龙薯蓣皂苷糖苷酶基因亚克隆到毕赤酵母表达载体pPIC9K,再将构建后的表达载体电转化到毕赤酵母GS115中,并诱导表达该基因。[结果]重组酵母菌在0.5%甲醇中培养144 h后,所提取的酶蛋白具有穿山龙薯蓣皂苷糖苷酶的活性,经SDS-PAGE分析,确定其相对分子质量为58 kD。[结论]穿山龙薯蓣皂苷糖苷酶基因得到了表达。
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关 键 词: | 穿山龙薯蓣皂苷糖苷酶 巴斯德毕赤酵母 基因表达 |
Sub-cloning and Expression of Dioscorea nipponica Glycosidase Gene |
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Affiliation: | WANG Qing-yu et al(School of Biological Engineering,Dalian Polytechnic University,Dalian,Liaoning 116034) |
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Abstract: | [Objective]To sub-clone and express glycosidase gene of Dioscorea nipponica.[Method]The glycosidase gene of Dioscorea nipponica was sub-cloned into Pichia pastoris GS115 expression vector pPIC9K,and the constructed expression vector was transformed into Pichia pastoris GS115 by electroporation method to induce the glycosidase gene.[Result]After have been cultivated for 144 hours in 0.5% methanol,the glycosidase gene in recombinant was proved to be active,and the relative molecular weight of which was 58 kDu through SDS-PAGE analysis.[Conclusion]Glycosidase gene of Dioscorea nipponica was expressed successfully. |
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Keywords: | Glycosidase gene of Dioscorea nipponica Pichia pastoris Gene expression |
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