人肥胖基因在大肠杆菌中的表达
被引量:2
Expression of human obese gene in E.coli
摘要
肥胖基因编码的瘦蛋白可以反映机体脂肪含量信息,在发育、繁殖、造血及体重调节等方面具有重要功能.本文利用PCR方法扩增去除信号肽的人肥胖基因cDNA序列,并将位于基因5'端的CCC转变为大肠杆菌常用密码子CCG,扩增片段经测序证实后,克隆原核表达载体pT7-7,重组质粒转化大肠杆菌BL21(DE3),经温度诱导,SDS-PAGE电泳可见分子量约为16kD的特异蛋白表达带,表达量最高占菌体蛋白总含量的45%以上.表达重组蛋白经纯化,注射昆明白小白鼠,小白鼠体重明显下降,说明纯化的重组蛋白具有生物学活性.
出处
《高技术通讯》
CAS
CSCD
北大核心
2005年第4期63-66,共4页
Chinese High Technology Letters
基金
国家自然科学基金
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引证文献2
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