Invitrogen™ Human Cystatin SN ELISA Kit

Product Code. 17144423

Brand: Invitrogen™ EH144RB

Description

ELISA

Human Cystatin SN quantitates human Cystatin SN in serum, plasma, supernatant. The assay will exclusively recognize both natural and recombinant human Cystatin SN.

The cystatin superfamily is a well-established family of cysteine protease inhibitors. Cystatins A and B (type 1) are mainly intracellular; cystatins C, D, E/M, F, G, S, SN and SA cystatins are extracellular (type 2); and the kininogens are type 3 cystatins which are intravascular proteins. All true cystatins inhibit cysteine peptidases of the papain family, such as cathepsins, and some also inhibit legumain family enzymes. Cystatin SA, cystatin S and cystatin SN are found primarily in saliva. Cystatin S and SN can also be expressed in tears, urine and seminal fluid. Cystatin C is a related protein which is expressed in brain, thymus, ovary, epididymis and vas deferens. Cystatin D protects against proteinases in the oral cavity, while Cystatin E/M and F moderate the inhibition of cathepsin proteins. The fetuins, part of the cystatin superfamily, are secretable proteins that influence osteogenesis and bone resorption, regulation of the insulin and hepatocyte growth factor receptors and the response to systemic inflammation. High molecular weight kininogen (Kininogen HC) and low molecular weight kininogen (Kininogen LC) have varied roles, though they both inhibit the thrombin- and plasmin-induced aggregation of thrombocytes.

Specifications

• Accession Number: CST1; Cystain-SA-I; cystatin 1; cystatin SA-I; cystatin SN; cystatin-1; Cystatin-SN; cysteine proteinase inhibitor, type 2 family; Salivary cystatin-SA-1
• Assay Range: 0.2 to 50 ng/mL
• Assay Sensitivity: 0.2 ng/mL
• Conjugate: HRP
• Product Type: ELISA
• Sample Type: Plasma, Serum, Supernatant
• For Use With (Equipment): Colorimetric Microplate Reader
• Gene ID (Entrez): 1469
• Gene Symbol: CST1
• Interassay CV: <12%
• Intraassay CV: <10
• Kit Contents: Pre-coated 96 well plate, Standard, Assay Diluent concentrate, Biotinylated Detection Antibody, SAV-HRP, Wash Buffer, Chromogen, Stop Solution, Adhesive Plate Covers
• Label or Dye: HRP
• Quantity: 96 Tests
• Regulatory Status: RUO
• Sample Volume: Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
• Storage Requirements: 2°C to 8°C
• Target: CST1
• Test Time: 1 hrs 20 mins
• Total Assay Time: 4 hrs 45 mins