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Cloning,expression and purification of human RD(regulation domain of PKB/Akt) gene in E. coli
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- Author:
- No author available
- Journal Title:
- JOURNAL OF THE FOURTH MILITARY MEDICAL UNIVERSITY
- Issue:
- 6
- DOI:
- 10.3321/j.issn:1000-2790.2003.06.001
- Key Word:
- PKB /Akt;克隆,分子;基因表达;纯化
Abstract： 目的: 克隆akt1的调节结构域 (regulation domain RD )的编码基因,表达并纯化 Akt RD蛋白,为研究 RD的功能奠定基础.方法: 用RT-PCR方法从胚胎肝细胞中获得Akt1调节结构域RD的编码基因,克隆至pMD18-T载体并测序,结果正确后亚克隆到含有6个His的融合表达载体pRSET-A中,转化大肠杆菌BL21(DE3),经IPTG诱导表达RD/6×His融合蛋白,超声裂菌,将上清通过金属螯合层析进行纯化.结果: 从人胚胎肝细胞中扩增出编码RD的cDNA,序列测定证实与文献报道的序列一致;成功构建了6×His融合的表达载体pRSET-A -RD;表达了RD/6×His融合蛋白,并纯化得到了RD/6×His蛋白. 结论: 成功克隆了人akt1的调节结构域RD基因,构建了6×His融合的表达载体,表达了RD/6×His融合蛋白并得到了纯化的RD/6×His蛋白.
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