Cat#:RP-2736H;Product Name:Recombinant Human CST5 Protein;Synonym:Cystatin-D, CST5, Cystatin 5, Cystatin-5.;Description:CST5 Protein produced in E. coli is a single polypeptide chain containing 123 amino acids (26-142) and having a molecular mass of 14.36kDa. CST5 is fused to a 6 amino acid His-tag at C-terminus & purified by proprietary chromatographic techniques.;Source:E.coli;AA Sequence:QSRTLAGGIH ATDLNDKSVQ RALDFAISEY NKVINKDEYY SRPLQVMAAY QQIVGGVNYY FNVKFGRTTC TKSQPNLDNC PFNDQPKLKE EEFCSFQINE VPWEDKISIL NYKCRKVHHH HHH.;Purity:Greater than 90.0% as determined by SDS-PAGE.;Bioactivity:The IC50 value is < 2.0nM. The inhibitory function of Cystatin 5 on protease activity of papain was measured by a fluorometric assay using Z-FR-AMC at pH 7.5 at 25C.;Formulation:The CST5 solution (0.5mg/1ml) contains phosphate buffered saline (pH7.4) and 10% glycerol.;Stability:Recombinant Proteins are stable for up to 1 year from date of receipt at -70℃;Storage:Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid repeated freeze-thaw cycles.;