Cystatin-S (21-141, His-tag) Human Protein

CAT#: AR50355PU-N

Cystatin-S (21-141, His-tag) human recombinant protein, 0.5 mg

Product Images

Specifications

Product Data

• Species: Human
• Expression Host: E. coli
• Expression cDNA Clone or AA Sequence:
  Protein Sequence

  MGSSHHHHHH SSGLVPRGSH MGSMSSSKEE NRIIPGGIYD ADLNDEWVQR ALHFAISEYN KATEDEYYRR PLQVLRAREQ TFGGVNYFFD VEVGRTICTK SQPNLDTCAF HEQPELQKKQ LCSFEIYEVP WEDRMSLVNS RCQEA
• Tag: His-tag
• Predicted MW: 16.8 kDa
• Concentration: lot specific
• Purity: >95% by SDS - PAGE
• Presentation: Purified
• Buffer: Presentation State: Purified
  State: Liquid purified protein
  Buffer System: 20 mM Tris-HCl buffer, pH 8.0, 10% glycerol, 1 mM DTT, 50 mM NaCl
• Preparation: Liquid purified protein
• Protein Description: Recombinant human CST4 protein, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography techniques.
• Storage: Store undiluted at 2-8°C for one week or (in aliquots) at -20°C to -80°C for longer.
  Avoid repeated freezing and thawing.
  
• Stability: Shelf life: one year from despatch.

Reference Data

• RefSeq: NP_001890
• Locus ID: 1472
• UniProt ID: P01036
• Cytogenetics: 20p11.21
• Summary: The cystatin superfamily encompasses proteins that contain multiple cystatin-like sequences. Some of the members are active cysteine protease inhibitors, while others have lost or perhaps never acquired this inhibitory activity. There are three inhibitory families in the superfamily, including the type 1 cystatins (stefins), type 2 cystatins and the kininogens. The type 2 cystatin proteins are a class of cysteine proteinase inhibitors found in a variety of human fluids and secretions. The cystatin locus on chromosome 20 contains the majority of the type 2 cystatin genes and pseudogenes. This gene is located in the cystatin locus and encodes a type 2 salivary cysteine peptidase inhibitor. The protein is an S-type cystatin, based on its high level of expression in saliva, tears and seminal plasma. The specific role in these fluids is unclear but antibacterial and antiviral activity is present, consistent with a protective function. [provided by RefSeq, Jul 2008]