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在大肠杆菌中表达酮酸脱羧酶产异戊醇 被引量:1

Production of the Isoamyl Alcohol in E. coli by Expression of kivD Gene
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摘要 酮酸脱羧酶作为异戊醇生物合成的关键酶,不存在于大肠杆菌中。以乳酸乳球菌的基因组DNA为模板,经过PCR扩增得到酮酸脱羧酶基因kivD(rbs),插入到大肠杆菌高效表达载体pET-28a(+)上形成pET-kivD(rbs),重组质粒热击转化进大肠杆菌BL21(DE3)中,其成功表达了酮酸脱羧酶。对发酵产物进行分析,检测到了微量的目标产物—异戊醇。 Keto acid decarboxylase is the key enzyme for biological synthesis of isoamyl alcohol, rarely existed in E. coli. Keto acid decarboxylase gene kivD(rbs) obtained from Lactococcuslactis subsp.Lactis genome DNA through reaction of PCR, was inserted into E. coli high expression vector pET-28a(+). The formed pET-kivD(rbs), was then transformed into E. coli BL21(DE3) by hot blow. The activity of keto acid decarboxylase and isoamyl alcohol were detected in the fermentation broth.
出处 《中国生物工程杂志》 CAS CSCD 北大核心 2015年第4期60-65,共6页 China Biotechnology
基金 国家自然科学基金(21176237 21211140237) 国家"863"计划(2013AA065803) 广东省科技攻关项目(2013B010403021) 广州市科技攻关项目(2013J4300026) 中国科学院院地合作项目 中国科学院广州能源所所长创新基金培育项目(y407p11001)资助项目
关键词 酮酸脱羧酶基因 重组质粒 转化 异戊醇 kivD gene Recombinant plasmid Transform Isoamyl alcohol
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参考文献18

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二级参考文献44

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