|Product name||Cystatin C Mouse Monoclonal Antibody (7F11)|
|Immunogen||Recombinant Protein of Cystatin C of CST3|
|Applications||ELISA, IF, IHC-P, WB|
|Applications notes||Optimal working dilutions should be determined experimentally by the investigator. Suggested starting dilutions are as follows: WB (1:1000-1:2000), IHC-P (1:100-1:200).|
|Preparation method||The antibody was affinity-purified from mouse ascites by affinity-chromatography using specific immunogen|
|Storage buffer||PBS containing 50% Glycerol, 0.5% BSA and 0.02% Sodium Azide.|
|Storage instructions||Stable for one year at -20°C from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Aliquot to avoid repeated freezing and thawing.|
|Shipping||Gel pack with blue ice.|
|Precautions||The product listed herein is for research use only and is not intended for use in human or clinical diagnosis. Suggested applications of our products are not recommendations to use our products in violation of any patent or as a license. We cannot be responsible for patent infringements or other violations that may occur with the use of this product.|
|Background||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, where they appear to provide protective functions. The cystatin locus on chromosome 20 contains the majority of the type 2 cystatin genes and pseudogenes. CST3 (cystatin C) is located in the cystatin locus and encodes the most abundant extracellular inhibitor of cysteine proteases, which is found in high concentrations in biological fluids and is expressed in virtually all organs of the body. A mutation in CST3 has been associated with amyloid angiopathy. Expression of this protein in vascular wall smooth muscle cells is severely reduced in both atherosclerotic and aneurysmal aortic lesions, establishing its role in vascular disease. In addition, this protein has been shown to have an antimicrobial function, inhibiting the replication of herpes simplex virus. Alternative splicing results in multiple transcript variants encoding a single protein.|
|Others||Cystatin C protein detects endogenous levels of CST3.|
Fig.1. Immunofluorescence analysis of human liver cancer tissue. 1, Cystatin C Mouse Monoclonal Antibody (7F11) (red) was diluted at 1:200 (4°C, overnight). 2, Cy3 Labeled secondary antibody was diluted at 1:300 (room temperature, 50min). 3, Picture B: DAPI (blue) 10min. Picture A: Target. Picture B: DAPI. Picture C: merge of A+B.
Fig.2. Immunohistochemical analysis of paraffin-embedded human liver tissue. 1, Cystatin C Mouse Monoclonal Antibody (7F11) was diluted at 1:200 (4°C, overnight). 2, Sodium citrate pH 6.0 was used for antibody retrieval (>98°C, 20min). 3, secondary antibody was diluted at 1:200 (room temperature, 30min). Negative control was used by secondary antibody only.
Fig.3. Western Blot analysis of Cystatin C protein using antibody diluted at 1:1000.