Tuner(DE3) pLysS大肠杆菌表达菌使用说明：
质粒平台的各批次质粒菌株发货前均经过严格的多重验证，如存在质量问题，请在收到产品三个月内通知我司。收到甘油菌后，请及时在固体平板上划线培养，挑取单菌落接种到液体培养基中，震荡培养后使用并保存甘油菌。如需获取其他详细信息请登录我司官网联系QQ客服查询。

基因型：
F^– ompT hsdS_B (r_B^– m_B^–) gal dcm lacY1(DE3) pLysS (Cam^R)

Tuner(DE3) pLysS大肠杆菌表达菌基本信息：
抗性：Chl
培养基：LB
菌株类别：大肠杆菌
培养条件：37℃，有氧，LB
质粒转化：42℃热激
保存方式：20%甘油，-20℃
基本应用：用于蛋白表达
备注：

Tuner(DE3) pLysS大肠杆菌表达菌菌株简介：
Tuner strains are lacZY deletion mutants of BL21 and enable adjustable levels of protein expression throughout all cells in a culture. The lac permease (lacY) mutation allows uniform entry of IPTG into all cells in the population, which produces a concentration-dependent, homogeneous level of induction. By adjusting the concentration of IPTG, expression can be regulated from very low levels up to the robust, fully induced levels commonly associated with pET vectors. Lower-level expression may enhance the solubility and activity of difficult target proteins. 
DE3 indicates that the host is a lysogen of λDE3, and therefore carries a chromosomal copy of the T7 RNA polymerase gene under control of the lacUV5 promoter. Such strains are suitable for production of protein from target genes cloned in pET vectors by induction with IPTG. 
pLysS strains express T7 lysozyme, which further suppresses basal expression of T7 RNA polymerase prior to induction, thus stabilizing pET recombinants encoding target proteins that affect cell growth and viability.

Tuner(DE3) pLysS大肠杆菌表达菌注意事项：
1、为了您的安全和健康，请穿实验服并戴一次性手套操作。本产品仅可用于实验室研究，不能用于动物，人体以及作为食品添加剂等用途。
2、使用甘油菌时可不完全融解，在甘油菌表面蘸取少量涂布固体琼脂平板即可，也可完全融解后使用，但随着冻融次数的增加，菌株的活力会逐渐下降。