Introduction: Cystatin C, which belongs to the type 2 cystatin gene family, is a potent inhibitor of lysosomal proteinases. It regulates the activity of cathepsin S, a protease with central regulatory functions in retinal pigment epithelial (RPE) cells.
Physical Appearance (form): Dissolved in 20mM Tris-HCl, pH8.0, 150mM NaCl.
Physical Appearance (form): White or clear
Concentration:1 mg/mL
Storage: -80°C
Preparation Instructions: Centrifuge the vial before open the cap and reconstitute in water. Adding of 10 mM β-mercaptoethanol or 1 mM DTT into the solution to protect the protein is recommended and using of non-ionic detergents such as n-Dodecyl β-D-maltoside (DoDM) or polyethylene detergents (e.g. C12E10) also help to stabilize the protein. Avoid repeated freezing and thawing after reconstitution. The purity of His-tagged CST3 was determined by SDS- PAGE and Coomassie Brilliant Blue Staining.
References: 1. Paraoan, L. et al., Traffic 5: 884-895, 2004. 2. Ratnayaka, A. et al., Exp. Eye Res. 84: 1135-1139, 2007. 3. Zurdel, J. et al., Brit. J. Ophthal. 86: 214-219, 2002.
