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第八章 克隆基因的表达 Expression of Cloned Genes. Gene Organization. Gene Expression and Regulation Levels. The lac Operon. Structure and expression of the mammalian β-globin gene. Transcription and Translation. Transcription in Prokaryotes. Structure of a typical promoter in E.coli.
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Transcription in Prokaryotes Structure of a typical promoter in E.coli
Fusional ExpressionVector Factor Xa---Activated form of factor x that participates in both the intrinsic and extrinsic pathways of blood coagulation. It catalyses the conversion of prothrombin to thrombin in conjunction with other cofactors.
Gene expression level and secondary structure of mRNA
Induced Expression of Gene • Chemical---lac promoter and IPTG IPTG即Isopropyl β-D-1-thiogalactopyranoside,也称Isopropyl β-D-thiogalactoside,中文名为异丙基-β-D-硫代半乳糖苷。分子式为C9H18O5S ,分子量为238.30。 -IPTG, cell growth +IPTG, target gene expression
Induced Expression of Gene • Physical---λPL and temperature sensitive(λcI875 lysogen,32℃,42℃)
Induced Expression of Gene Promoter: λPLλPR Terminator: rrnBT1T2 Supression: 32℃ Gene expression: 42℃
Transcription and Translation in SV40 Virus
SV40 Virus Vector and COS Cells
Gene Expression in Mammals