基本信息
启动子: T7/lac
复制子: ColE1 ori,F1 ori
终止子: T7 terminator
质粒分类: 大肠杆菌载体;PET系列表达质粒
质粒大小: 5369bp
质粒标签: C-His
原核抗性: 氨苄青霉素Amp
克隆菌株: DH5α
培养条件: 37℃,有氧,LB
表达宿主: BL21(DE3)
诱导方式: IPTG或乳糖及其类似物
5'测序引物: T7:TAATACGACTCACTATAGGG
3'测序引物: T7-ter:TGCTAGTTATTGCTCAGCGG
质粒简介
pET-21( ) is a transcription vector designed for expression from bacterial translation signals carried within a cloned insert. It therefore lacks the ribosome binding site and ATG start codon present on the pET translation vectors. A C-terminal His•Tag® sequence is available. Unique sites are shown on the circle map. Note that the sequence is numbered by the pBR322 convention, so the T7 expression region is reversed on the circular map. The cloning/expression region of the coding strand transcribed by T7 RNA polymerase is shown below. The f1 origin is oriented so that infection with helper phage will produce virions containing single-stranded DNA that corresponds to the coding strand. Therefore, single-stranded sequencing should be performed using the T7 terminator primer.