Eukaryotic Streptavidin is a purified Eukaryotic Protein. Purity: >95% by SDS-PAGE. Host: 293F Cell. Endotoxin Level: <1.0EU per 1ug, by the LAL method. Species: Universal. Target Name: Streptavidin. Accession Number: P22629. Expression Region: Asp25~Gln183. Tag Info: N-terminal His Tag. Theoretical MW: 20/80kda. Buffer: PBS, pH7.4, containing 0.01% SKL, 1mM DTT, 5% Trehalose and Proclin300. Restrictions: For Research Use Only. Not for use in diagnostic procedures.