CST4 Protein (AA 21-141) (His tag)
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- Target See all CST4 Proteins
- CST4 (Cystatin S (CST4))
- Protein Type
- Recombinant
- Protein Characteristics
- AA 21-141
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Origin
- Human
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Source
- HEK-293 Cells
- Purification tag / Conjugate
- This CST4 protein is labelled with His tag.
- Sequence
- AA 21-141
- Characteristics
- This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 15 kDa. The protein migrates as 15 kDa under reducing (R) condition (SDS-PAGE).
- Purity
- >95 % as determined by SDS-PAGE.
- Sterility
- 0.22 μm filtered
- Endotoxin Level
- Less than 1.0 EU per μg by the LAL method.
- Top Product
- Discover our top product CST4 Protein
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- Restrictions
- For Research Use only
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- Format
- Lyophilized
- Buffer
- 25 mM MES, 150 mM NaCl, pH 6.0
- Handling Advice
- Please avoid repeated freeze-thaw cycles.
- Storage
- -20 °C
- Storage Comment
- No activity loss was observed after storage at: In lyophilized state for 1 year (4 °C), After reconstitution under sterile conditions for 3 months (-70 °C).
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- Target
- CST4 (Cystatin S (CST4))
- Alternative Name
- Cystatin S (CST4 Products)
- Synonyms
- CST4 Protein, Cst4 Protein, cystatin S Protein, CST4 Protein, Cyss Protein
- Background
- Cystatin-4 (CST4) is also known as Cystatin-S, Salivary acidic protein 1, which is a secreted protein, which belongs to the cystatin family. Cystatin-S is expressed in submandibular and sublingual saliva but not in parotid saliva (at protein level) and is also expressed in saliva, tears, urine and seminal fluid. Cystatin-4 / Cystatin S strongly inhibits papain and ficin, partially inhibits stem bromelain and bovine cathepsin C, but does not inhibit porcine cathepsin B or clostripain. Papain is inhibited non-competitively.
- Molecular Weight
- 15.0 kDa
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