Mouse Cystatin C ELISA Kit | CST3 elisa kit

Mouse Cystatin C ELISA Kit

Cat. Num. AAA564170

• Gene Names: CST3; ARMD11
• Reactivity: Mouse
• Synonyms: Cystatin C; Mouse Cystatin C ELISA Kit; CST3 elisa kit

• Reactivity: Mouse

• Samples: Immunoperoxidase Assay for Determination of Cystatin C in Mouse Samples
• Assay Type: Sandwich
• Intended Uses: The Cystatin C test kit is a highly sensitive two-site enzyme linked immunoassay (ELISA) for measuring Cystatin C in mouse biological samples.

Related Product Information for CST3 elisa kit

Principle of the Assay: The principle of the double antibody sandwich ELISA is represented in Figure 1. In this assay the Cystatin C present in samples reacts with the anti-Cystatin C antibodies which have been adsorbed to the surface of polystyrene microtitre wells. After the removal of unbound proteins by washing, anti-Cystatin C antibodies conjugated with horseradish peroxidase (HRP), are added. These enzyme-labeled antibodies form complexes with the previously bound Cystatin C. Following another washing step, the enzyme bound to the immunosorbent is assayed by the addition of a chromogenic substrate, 3,3',5,5'-tetramethylbenzidine (TMB). The quantity of bound enzyme varies directly with the concentration of Cystatin C in the sample tested; thus, the absorbance, at 450 nm, is a measure of the concentration of Cystatin C in the test sample. The quantity of Cystatin C in the test sample can be interpolated from the standard curve constructed from the standards, and corrected for sample dilution.

Background: Mouse Cystatin C is a small cysteine proteinase inhibitor present in all mouse body fluids. Studies have shown Cystatin C levels to be directly correlated with the glomular filtration rate.

Product Categories/Family for CST3 elisa kit

ELISA Kit

NCBI and Uniprot Product Information

• NCBI GI #: 755738
• NCBI GeneID: 1471
• UniProt Accession #: P01034; Q6FGW9; B2R5J9; D3DW42
• Molecular Weight: 15,799 Da
• NCBI Official Full Name: cystatin C
• NCBI Official Synonym Full Names: cystatin C
• NCBI Official Symbol: CST3
• NCBI Official Synonym Symbols: ARMD11
• NCBI Protein Information: cystatin-C; cystatin 3; cystatin-3; gamma-trace; post-gamma-globulin; bA218C14.4 (cystatin C); neuroendocrine basic polypeptide
• UniProt Protein Name: Cystatin-C
• Protein Family: Cystatin
• UniProt Gene Name: CST3
• UniProt Entry Name: CYTC_HUMAN

NCBI Description

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. This gene 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 this gene 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. [provided by RefSeq, Jul 2008]

Uniprot Description

CST3: As an inhibitor of cysteine proteinases, this protein is thought to serve an important physiological role as a local regulator of this enzyme activity. Defects in CST3 are the cause of amyloidosis type 6 (AMYL6); also known as hereditary cerebral hemorrhage with amyloidosis (HCHWA), cerebral amyloid angiopathy (CAA) or cerebroarterial amyloidosis Icelandic type. AMYL6 is a hereditary generalized amyloidosis due to cystatin C amyloid deposition. Cystatin C amyloid accumulates in the walls of arteries, arterioles, and sometimes capillaries and veins of the brain, and in various organs including lymphoid tissue, spleen, salivary glands, and seminal vesicles. Amyloid deposition in the cerebral vessels results in cerebral amyloid angiopathy, cerebral hemorrhage and premature stroke. Cystatin C levels in the cerebrospinal fluid are abnormally low. Genetic variations in CST3 are associated with age- related macular degeneration type 11 (ARMD11). ARMD is a multifactorial eye disease and the most common cause of irreversible vision loss in the developed world. In most patients, the disease is manifest as ophthalmoscopically visible yellowish accumulations of protein and lipid that lie beneath the retinal pigment epithelium and within an elastin-containing structure known as Bruch membrane. Belongs to the cystatin family.

Protein type: Secreted; Inhibitor; Secreted, signal peptide

Chromosomal Location of Human Ortholog: 20p11.21

Cellular Component: extracellular space; extracellular region

Molecular Function: protein binding; protease binding; beta-amyloid binding; endopeptidase inhibitor activity; cysteine protease inhibitor activity

Biological Process: negative regulation of proteolysis; fibril organization and biogenesis; negative regulation of peptidase activity; defense response; regulation of tissue remodeling

Disease: Macular Degeneration, Age-related, 11; Cerebral Amyloid Angiopathy, Cst3-related