■ 基本信息
啟動子: | CMV |
復制子: | pUC |
終止子: | SV40 poly(A) signal |
質(zhì)粒分類: | 哺乳細胞，四環(huán)素調(diào)控系統(tǒng)載體 |
質(zhì)粒大小: | 7139bp |
原核抗性: | Amp |
克隆菌株: | DH5a |
培養(yǎng)條件: | 37度 |
表達宿主: | 哺乳細胞 |
誘導方式: | 四環(huán)素誘導 |
5'測序引物: | CMV-F：CGCAAATGGGCGGTAGGCGTG |
3'測序引物: | 根據(jù)序列設(shè)計引物 |
■ 質(zhì)粒屬性
質(zhì)粒宿主: | 哺乳細胞 |
質(zhì)粒用途: | 蛋白表達 |
片段類型: |
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片段物種: |
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原核抗性: | Amp |
真核抗性: |
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熒光標記: |
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■ 質(zhì)粒簡介
The pCMV-Tet3G Vector expresses Tet-On? 3G, a tetracycline-controlled transactivator that exhibits high activity in the presence of the inducer doxycycline (Dox) and exceptionally low activity in its absence. Tet-On 3G results from the fusion of amino acids 1–207 of a mutant Tet repressor (TetR) to 39 amino acids that form three minimal "F"-type transcriptional activation domains from the herpes simplex virus VP16 protein. Tet-On 3G was derived from Tet-On Advanced (1–4); as a result, it’s fully synthetic, lacks cryptic splice sites, and is codon-optimized for stable expression in mammalian cells. Compared to both of its predecessors, this 3rd generation Tet-On transactivator demonstrates increased sensitivity to Dox (1). Constitutive expression of Tet-On 3G is driven by the human cytomegalovirus immediately early promoter (PCMV IE). Note: An EF1α version of this vector is available for cell lines in which the CMV promoter is silenced.
pCMV-Tet3G is used to develop stable Tet-On 3G cell lines, which are hosts for Tet-inducible gene expression systems. To create a Tet-inducible expression system, a vector containing a gene of interest under the control of the Tet-inducible TRE3G promoter (PTRE3G) is transfected into a Tet-On 3G cell line. The addition of Dox to the system causes Tet-On 3G to undergo a conformational change that allows it to bind to PTRE3G, activating transcription of the gene of interest in a highly dose-dependent manner.
■ 質(zhì)粒圖譜
■ 質(zhì)粒序列
質(zhì)粒序列請下載：
ZK698pCMV-Tet3G哺乳調(diào)控質(zhì)粒.txt
