The pETBlue-2 vector is designed to identify recombinants by traditional blue/white screening while also allowing T7lac promoter based expression of target genes. Screening is independent of expression because the T7lac expression promoter is in an opposed orientation relative to the E. coli promoter that mediates blue/white screening. pETBlue-2 defines the open reading frame and inserts must be cloned in-frame if expression is desired. The vector features an expanded multiple cloning site (MCS) and optional C-terminal HSV•Tag and His•Tagsequences. The sequence is numbered from the first base of the T7 promoter sequence.，官网链接：https://www.sigmaaldrich.cn/product/mm/70609 默克 科研、开发、生产。 作为生命科学行业的全球领先供应商，我们致力于为科研、生物技术开发和生产，以及制药药物疗法开发和生产提供各类解决方案和服务。

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