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Q15828-Human CST6 -3d structure.jpg Q15828-Human CST6 -3d structure.jpg

Human CST6 +SDS-PAGE.jpg Human CST6 +SDS-PAGE.jpg Greater than 95% as determined by reducing SDS-PAGE.

Greater than 95% as determined by reducing SDS-PAGE.

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Recombinant Human CST6 (C-6His, HEK293) is a human-derived Cystatin-M protein expressed in HEK293 human cells and tagged with a C-terminal 6×His tag. Belonging to the cysteine protease inhibitor family, it is a typical secretory protein featuring a signal peptide sequence. Its primary function is to inhibit cysteine proteases such as cathepsins B, L, and S in endosomes and lysosomes. It plays a key role in terminal differentiation of stratified squamous epithelial cells and keratinization envelope formation, regulates the activity of related proteases, and maintains normal keratinization processes.

Synonyms: Recombinant Human CST6 (C-6His, HEK293); Cystatin-M; Cystatin-6

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Product Details of Human CST6 (C-6His, HEK293)

M.W : 14.66 KDa
SMILES Code : NONE
Synonyms :
Recombinant Human CST6 (C-6His, HEK293); Cystatin-M; Cystatin-6

Safety of Human CST6 (C-6His, HEK293)

Isoform Comparison

Biological Activity

Description
Cystatin-M is a typical secretory protein. It is synthesized as a preprotein with a patent N-terminal signal sequence.It belongs to the cystatin family. The most widely accepted function of cystatins is that of protease inhibitors. Most cysteine proteases are confined within cells where optimal pH and redox conditions favor their enzymatic activity. Thus, the majority of intracellular cysteine proteases are inactivated by oxidizing conditions outside the cells. Among the various types of intracellular cysteine proteases, cystatins seem to target preferentially endosomal/lysosomal cysteine proteases of the papain family, such as cathepsin B, cathepsin K/O2, cathepsin L, cathepsin L2/V and cathepsin S. Another important function of Cst6 seems to be in the terminal differentiation of stratified squamous epithelial cells and in the formation of cornified envelops. Cst6 is believed to be important in fine-tuning the enzymatic activities of endosomal/lysosomal cysteine proteases such as cathepsin L, cathepsin L2/V and AEP/mammalian legumain. Deregulated activity of these proteases could lead to abnormal activation of transglutaminases and disorders in cornification.
Protein Species Human
Expression System Human Cells
Tag C-6His
Protein Expression Interval Arg29-Met149
Protein ID Q15828
Endotoxin < 1 EU/µg as determined by LAL test.
Characteristics Lyophilized powder
Formulation Description Lyophilized from a 0.2 μm filtered solution of 20 mM Tris-HCl, 10% maltose, 0.1% Tween 80, pH9.0.
Reconstitution Method Always centrifuge tubes before opening.Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
For long-term storage, it is recommended to further dilute the product with a solution containing carrier proteins (e.g., 0.1% BSA, 10% FBS, or 5% HSA). For serum-free cultures or in vivo animal experiments where BSA, FBS, or HSA cannot be present in the cytokine preparation, trehalose may be used as an alternative carrier. Aliquots should be stored frozen at -20°C to -80°C.
Note: Low-adsorption tubes are recommended for aliquot storage, and repeated freeze-thaw cycles should be avoided. The dilution concentration for aliquoting should not be lower than 10 μg/mL, and the aliquot volume should be no less than 10 μL.
Aliquoted protein remains stable for up to 3 months when stored at ≤ -20°C.
 

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