本品由我们的哺乳动物细胞表达系统制备而成，目的基因编码的Trp21-Ala141在C端含有His标签。

Cystatin SA质量控制：＞95%(还原性SDS-PAGE)

Cystatin SA制剂：冻干品

Cystatin SA保存：
冻干蛋白置于-20℃以下可长期保存，室温条件下可稳定保存3周。
复溶蛋白溶液可在4～7℃保存2～7天，可分装后置于-20℃保存三个月。

Cystatin SA复溶：
打开试剂管前请先离心。
复溶浓度推荐大于100 μg/ml。
冻干蛋白请溶于ddH2O。
复溶后，请根据用量分装冻存，避免反复冻融。

关于Cystatin SA：
Cystatin SA is a member of family 2 of the Cystatin superfamily. Together with Cystatins S and SN, it is produced by the salivary gland and secreted largely in the submandibular/sublingual saliva. Cystatin SA inhibits Cathepsin L, but may not inhibit Cathepsins B and H. The functions of Cystatin SA are largely unknown. However, it has been suggested to play a role in the control of periodontal tissue destruction.