Recombinant Human Cystatin S/CST4 Protein (His Tag)

SKU: PKSH032327

Size: 50μg

Storage: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.

Shipping: This product is provided as lyophilized powder which is shipped with ice packs.

Exp date: 12 months

Category ID_II: Recombinant Proteins

Category ID_III: Others

Abbreviation: Cystatin S;CST4

Target Synonym: CST4;Cystatin-4;Cystatin-S;Cystatin-SA-III;Salivary Acidic Protein 1

Research Areas: Cell biology;immunology

Conjugation:

Target Species: Human

Expression Host: HEK293 Cells

Application:

Fusion tag: C-His

UNIProt ID: P01036

Accession: P01036

Background: Cystatin-S, also called Cystatin-SA-III or Salivary acidic protein, is usually expressed in submandibular and sublingual saliva but not in parotid saliva(at protein level). This protein, which is phosphorylated at both its N- and C-terminal regions, belongs to the cystatin family. Cystatin-S can function as an inhibitor to papain or ficin, it partially inhibits stem bromelain and bovine cathepsin C.

Concentration:

Activity: Not validated for activity

Sequence: Ser21-Ala141

Purity: > 95 % as determined by reducing SDS-PAGE.

Formulation: Lyophilized from a 0.2 μm filtered solution of 20mM MES, 150mM NaCl, pH 5.5.
Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the printed manual.

Reconstitution: Please refer to the printed manual for detailed information.

Endotoxin: < 1.0 EU per μg of the protein as determined by the LAL method.

Calculated MW: 15.2 kDa

ObservedMW: 16 kDa