摘要
我们组建了一个含P_RP_L自动子的原核高效表达载体,它同时含有cI调控基因、多酶切点和两个强的转录终止序列。带起始密码子ATG的外源基因可以插入启动子下游的多酶切点,表达非融合蛋白,产品可供临床使用。我们实验室已用它成功地表达了人γ干扰素、人白细胞介素-2和人肿瘤坏死因子等,表达量均占菌体总蛋白的20％以上。
A high level expression vector has been constructed,which contains PR PL promoter, cIts857 gene, multiple cloning sites ( MCS ) and two strong transcription terminators. Foreign gene with ATG signal can be inserted into the MCS, expressing non-fusion protein. Using this vector, we have expressed successfully the human interferon r,human interleukin-2 and human tumor necrosis factor. The foreign gene product accounts for more than 20% of the total cell protein.
出处
《病毒学报》
CAS
CSCD
北大核心
1990年第2期111-116,共6页
Chinese Journal of Virology
基金
国家"863"高科技生物领域
国家"七五"攻关项目的支持
