Cystatin S Matched ELISA Antibody Pair Set,Human

Cat: SEK11542
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Cystatin S Matched ELISA Antibody Pair Set,Human General Information
Product name
Cystatin S Matched ELISA Antibody Pair Set,Human
Assay type
Solid Phase Sandwich ELISA
Specificity
Quantitative determination of Human Cystatin S
Assay range
2.34-150
Materials provided
1. Capture Antibody 0.5 mg/mL of mouse anti-CST4 monoclonal antibody, Dilute to a working concentration of 2 μg/mL in CBS before coating. (Catalog: # 11542-MM01)
2. Detection Antibody 0.5 mg/mL mouse anti-CST4 monoclonal antibody conjugated to horseradish-peroxidase (HRP). Dilute to working concentration of 0.5 μg/mL in detection antibody dilution buffer before use. (Catalog: # 11542-MM10)
3. Standard Each vial contains 37 ng of recombinant CST4. Reconstitute with 1 mL detection antibody dilution buffer. After reconstitution, store at -20℃ to -80℃ in a manual defrost freezer. A seven-point standard curve usi ng 2-fold serial dilutions in sample dilution buffer, and a high standard of 150 pg/mL is recommended.
Product overview
This Cystatin S Matched ELISA Antibody Pair Set,Human is a solid phase sandwich ELISA for quantitative determination of Human Cystatin S . It contains Human Cystatin S capture antibody, Human Cystatin S detector antibody (HRP) and a highly purified HEK293-expressed recombinant Human Cystatin S protein. This Pair Set is at affordable price for researchers.
Shipping
This Matched ELISA Antibody Pair Set is shipped at ambient temperature.
Storage
Capture Antibody: Aliquot and store at -20℃ to -80℃ for up to 6 months from date of receipt. Avoid repeated freeze-thaw cycles.
Detection Antibody: Protect it from prolonged exposure to light. Aliquot and store at -20℃ to -80℃ and for up to 6 months from date of receipt. Avoid repeated freeze-thaw cycles.
Standard: Store lyophilized standard at -20℃ to -80℃ for up to 6 months from date of receipt. Aliquot and store the reconstituted Standard at -80℃ for up to 1 month. Avoid repeated freeze-thaw cycles.
Cystatin S Matched ELISA Antibody Pair Set,Human Images
Human Cystatin S / CST4 ELISA Pair Set Standard Curve 13933
Cystatin S Matched ELISA Antibody Pair Set,Human Alternative Names
CST4 Matched ELISA Antibody Pair Set, Human;MGC71923 Matched ELISA Antibody Pair Set, Human
Cystatin S Background Information

Cystatin-S, also known as Cystatin-4, Salivary acidic protein 1, Cystatin-SA-III and CST4, is a secreted protein which belongs to the cystatin family. Cystatin-4 / CST4 is expressed in submandibular and sublingual saliva but not in parotid saliva (at protein level). It is also expressed in saliva, tears, urine and seminal fluid. 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. Cystatin-4 / CST4 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. Cystatin-4 / CST4 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.

Full Name
cystatin S
References
  • Bobek L.A., et al.,(1991), Human salivary cystatin S. Cloning, sequence analysis, hybridization in situ and immunocytochemistry. Biochem. J. 278:627-635.
  • Saitoh E., et al., (1992), Characterization of two members (CST4 and CST5) of the cystatin gene family and molecular evolution of cystatin genes.Agents Actions 38:340-348.
  • Deloukas P., et al.,(2001), The DNA sequence and comparative analysis of human chromosome 20.Nature 414:865-871.
  • Product Description Assay Range (pg/ml) Sample Type Catalog# (PDF)
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