Human Cystatin S / CST4 Protein, His Tag [CS4-H5223]

Synonyms	-
Characteristics	This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 15.0 kDa. The protein migrates as 15 kDa under reducing (R) condition (SDS-PAGE).
Endotoxin Level	1.0 EU per μg
Purity	95%
Description	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.
Reference	-
URL	https://www.acrobiosystems.com/P1407-Human-Cystatin-S--CST4-Protein-His-Tag.html

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