The gene S-100 ß subunit (S100B) is a 21kDa acidic protein. It is encoded by the gene mapped to human chromosome 21q22.3. The gene codes for a calcium-binding protein and is a member of S100 family of calcium-binding proteins. The encoded protein is produced predominantly by astrocytes. S100B is a homodimer with two ß subunits.
Synonyms: S100beta
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 collecation 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.Monoclonal Anti-S100B antibody produced in mouse has been used in immunocytochemistry and immunofluorescence studies.
Biochem Physiol Actions: S-100 ß subunit (S100B) exerts paracrine and autocrine effects on neurons and glia. At nanomolar concentrations, the encoded protein promotes neurite outgrowth and increases survival of neurons during development. S100B serves as a marker of melanocyte cytotoxicity. In addition, it also acts as a serum marker in endocrine resistant breast cancer and Nonsegmental Vitiligo. Decreased expression of S100B has been observed in chronic liver disease patients.
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