Recombinant Long-Arm Sulfhydryl Group Core Streptavidin, r-las-cSA

Product Information Product name: Recombinant Long Arm Sulfhydryl Group Core Streptavidin, r-las-cSA Specifications: 10 mg, 100 mg, 500 mg Product form: Freeze dried powder (20mMHEPES buffer, trehalose, TCEP, pH 7.0) Molecular weight: tetramer 54.8kDa, monomer 13.7kDa Activity: ≥ 16 U/mg protein (measured by Green modified method) Purity: ≥ 95% (SDS-PAGE detection) Concentration determination: UV absorption method, extinction coefficient E (0.1% at 280 nm)=3.05 Endotoxin: ≤