CST4 Protein (AA 21-141) (His tag)

Catalog No. ABIN2180919

Product Details

Target: CST4 (Cystatin S (CST4))

Protein Type: Recombinant

Protein Characteristics: AA 21-141

Origin: Human

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.

Application Details

Restrictions: For Research Use only

Handling

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).

Target Details

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