Recombinant Human CST2 protein, His-tagged

• Cat.No.: CST2-195H
• Product Overview: Recombinant Human CST2 (Trp21-Ala141) protein was fused to His-tag at C-terminus and expressed in human 293 cells (HEK293).

Specification

• Description: Cystatin-2 (CST2) is also known as Cystatin-SA, Cystatin-S5, is a secreted thiol protease inhibitor, which belongs to the cystatin family. The type 2 cystatin proteins are a class of cysteine proteinase inhibitors found in a variety of human fluids and secretions, where they appear to provide protective functions. The CST1, CST2, CST4, and CST5 are expressed in differential, tissue-specific patterns. CST2 is expressed in submandibular and sublingual saliva but not in parotid saliva (at protein level) and is also expressed in submandibular gland and parotid gland.
• Source: HEK293
• Species: Human
• Tag: His
• Predicted N Terminal: Trp21
• Form: Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 150 mM NaCl, pH8.0, 10% trehalose.
• Molecular Mass: The protein has a calculated MW of 15.2 kDa. The protein migrates as 15-16 kDa under reducing (R) condition (SDS-PAGE).
• Protein length: Trp21-Ala141
• Endotoxin: Less than 1.0 EU per μg by the LAL method.
• Purity: >95% as determined by SDS-PAGE.
• Storage: For long term storage, the product should be stored at lyophilized state at -20 centigrade or lower.
  Please avoid repeated freeze-thaw cycles.
  This product is stable after storage at:
  -20 to -70 centigrade for 12 months in lyophilized state;
  -70 centigrade for 3 months under sterile conditions after reconstitution.
• Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4℃ before opening to recover the entire contents.

Gene Information

• Gene Name: CST2
• Official Symbol: CST2
• Synonyms: CST2; cystatin SA; cystatin-SA; cystatin 2; cystatin-2; cystatin S5; cystatin-S5; cysteine-proteinase inhibitor; salivary cysteine (thiol) protease inhibitor; MGC71924
• Gene ID: 1470
• mRNA Refseq: NM_001322
• Protein Refseq: NP_001313
• MIM: 123856
• UniProt ID: P09228