This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 36.7 kDa. The protein migrates as 10 kDa and 34 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation, corresponding to the propeptide and the mature form respectively.
>98% as determined by SDS-PAGE.
Lyophilized from 0.22 μm filtered solution in 20 mM NaAc, 150 mM NaCl, pH5.0. Normally trehalose is added as protectant before lyophilization.
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Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
No activity loss was observed after storage at:
4-8°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution.
Human Cathepsin L, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 98%.
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