Cystatin-C precursor (CST3) belongs to the cystatin family (type2) of proteins and contains 120 amino acids. The gene CST3 is located on human chromosome 20p11.2. CST3 is expressed in many tissues and is present in all body fluids.
Synonyms: Anti-Cystatin-3; Anti-Cystatin-C precursor; Anti-Gamma-trace; Anti-Neuroendocrine basic polypeptide; Anti-Post-gamma-globulin
Storage: -20C
Application: All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org)and as a result, are supported by the most extensive characterization in the industry. The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.
Biochem Physiol Actions: Cystatin-C precursor (CST3) is an inhibitor of lysosomal cysteine proteases and several cathepsins like cathepsin S, a lysosomal enzyme. It has been shown that CST3 is a marker of glomerular filtration and diabetic kidney disease. In presence of pathological conditions, it forms amyloid fibrils in brain arteries. Mutations in the gene encoding CST3 have been shown to be associated with a form of amyloidosis and age-related macular degeneration.
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