Human Cystatin S / CST4 Protein, His Tag

CST4, Cystatin-4, Cystatin-S, Cystatin-S5, Cystatin-SA-III

Human Cystatin S, His Tag (CS4-H5223) is expressed from human 293 cells (HEK293). It contains AA Ser 21 - Ala 141 (Accession # AAH65714).

Less than 1.0 EU per μg by the LAL method / rFC method.

>95% as determined by SDS-PAGE.

Lyophilized from 0.22 μm filtered solution in 25 mM MES, 150 mM NaCl, pH6.0 with trehalose as protectant.

Contact us for customized product form or formulation.

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

This product is shipped at ambient temperature.

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

• -20°C to -70°C for 12 months in lyophilized state;
• -70°C for 3 months under sterile conditions after reconstitution.