S100A1 (Astrocyte Marker) Antibody - Without BSA and Azide
Mouse Monoclonal Antibody [Clone 4C4.9 + S100A1/1012 ]
|Application ||WB, IF, FC|
|Other Accession||6271, 515715|
|Reactivity||Human, Mouse, Rat, Cow|
|Isotype||Mouse / IgG's|
|Clone Names||4C4.9 + S100A1/1012|
|Other Names||Protein S100-A1, S-100 protein alpha chain, S-100 protein subunit alpha, S100 calcium-binding protein A1, S100A1, S100A|
|Storage||Store at 2 to 8°C.Antibody is stable for 24 months.|
|Precautions||S100A1 (Astrocyte Marker) Antibody - Without BSA and Azide is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Weakly binds calcium but binds zinc very tightly- distinct binding sites with different affinities exist for both ions on each monomer. Physiological concentrations of potassium ion antagonize the binding of both divalent cations, especially affecting high-affinity calcium-binding sites. May mediate calcium-dependent regulation on many physiological processes by interacting with other proteins, such as TPR-containing proteins, and modulating their activity.|
|Tissue Location||Highly prevalent in heart. Also found in lesser quantities in skeletal muscle and brain|
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S100 belongs to the family of calcium binding proteins. S100A and S100B proteins are two members of the S100 family. S100A is composed of an alpha and beta chain whereas S100B is composed of two beta chains. S-100 protein has been found in normal melanocytes, Langerhans cells, histiocytes, chondrocytes, lipocytes, skeletal and cardiac muscle, Schwann cells, epithelial and myoepithelial cells of the breast, salivary and sweat glands, as well as in glial cells. Neoplasms derived from these cells also express S-100 protein, albeit non-uniformly. A large number of well-differentiated tumors of the salivary gland, adipose and cartilaginous tissue, and Schwann cell-derived tumors express S-100 protein. Almost all malignant melanomas and cases of histiocytosis X are positive for S-100 protein. Despite the fact that S-100 protein is an ubiquitous substance, its demonstration is of great value in the identification of several neoplasms, particularly melanomas and their metastases.
Joshi MG et. al. Modern Pathology, 1996, 9(1):57-62. | McLaren KM et. al. Human Pathology, 1996, 27(7):633-6. |
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