Strep-Tag is a short amino acid-peptide sequence that exhibits specific binding to streptavidin. It is shown to reversibly occupy the same pocket where biotin is normally complexed. Hence, it is highly desirable for applications involving where efficient purification of fusion proteins. Use of this tag allows for easier detection of fusion proteins in various immunochemical assays. Strep-Tag is shown to be resistant to the action of proteases and can also be used in the presence of mild detergents. Clone C23.21 recognizes fusion proteins with Strep-Tag peptide sequence WSHPQFEK with picomolar affinity. It recognizes both the single and the double Strep-Tag sequence.，官网链接：https://www.sigmaaldrich.cn/product/mm/mac143 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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