Description:Strep-tag® Protein Purification System is based on the highly selective and easily controllable interaction between the Strep-tag®II peptide and the blotin blnding site of a specially engineered streptavidln called Strep-Tactin®. Strep-tag®II binds Strep-Tactin® nearly 100 times tighter than streptavidln, but elutes under gentle physlological conditions.
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