Active Recombinant Human CSTA protein, His-tagged

• Cat.No.: CSTA-2591H
• Product Overview: Active Recombinant Human Cystatin-A/CSTA Protein is produced by E. coli expression system. The target protein is expressed with sequence (Met1-Phe98) of human Cystatin-A (Accession #NP_005204.1) fused with a 6×His tag at the C-terminus.

Specification

• Source: E. coli
• Species: Human
• Tag: His
• Form: Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.
• Bio-activity: Measured by its ability to inhibit papain cleavage of a fluorogenic peptide substrate Z-FR-AMC. The IC50 value is <0.7 nM.
• Molecular Mass: 14 kDa
• Protein length: Met1-Phe98
• Endotoxin: < 1.0 EU/μg of the protein by LAL method.
• Purity: > 95% by SDS-PAGE.
• Storage: Store the lyophilized protein at -20°C to -80 °C for long term.
  After reconstitution, the protein solution is stable at -20 °C for 3 months, at 2-8 °C for up to 1 week.
• Reconstitution: Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water.