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. This antibody is specific against an epitope located on the alpha-chain, but not on the beta-chain, of S100. This antibody can be used to localize S-100A in various tissue sections. S100 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.

Store the S100A1 antibody at 2-8°C (with azide) or aliquot and store at -20°C or colder (without azide).