Immunofluorescent staining of COS-7 cells expressing S100B-flag using Aves Labs anti-S100B antibody (green) and rabbit anti-flag (red). DAPI nuclear stain (blue) shows nuclei of both transfected and untransfected cells. Staining shows 100% correspondence between chicken anti-S100B signal and anti-flag in transfected cells.
Bulk Order Anti-S100B Antibody
S100 protein is a type of low molecular weight protein found in vertebrates characterized by two calcium binding sites of the helix-loop-helix ("EF-hand type") conformation. There are at least 21 different types of S100 proteins. The name is derived from the fact that the protein is 100% soluble in ammonium sulfate at neutral pH. Most S100 proteins are homodimeric, consisting of two identical polypeptides held together by non-covalent bonds. S100A is composed of an alpha and a beta chain whereas S100B is composed of two beta chains. Although S100 proteins are structurally similar to calmodulin, they differ in that they are cell-specific, expressed in particular cells at different levels depending on environmental factors. By contrast, calmodulin is a ubiquitous and universal intracellular Ca++ receptor widely expressed in many cells. S-100 is normally present in cells derived from the neural crest (Schwann cells, melanocytes, and glia cells), chondrocyte, adipocytes, myoepithelial cells, macrophages, Langerhans cells, dendritic cells, and keratinocytes. It may be present in some breast epithelial cells. This antibody stains schwannoma, ependymomas, astrogliomas, almost all benign and malignant melanoma and their metastasis.
ICC, IHC, WB
His tagged full length protein
Human, Mouse, Rat
Store at 4°C in the dark. Under these conditions, the antibodies should have a shelf life of at least twelve months, provided they remain sterile. For longer term storage, aliquot and freeze to avoid freeze-thaw of the antibody.
Eggs from hens hyperimmunized with target were used to prepare an IgY fraction which was then subjected to antigen-specific affinity purification.
Phosphate-buffered (10 mM) isotonic (0.9%, w/v) saline (“PBS," pH 7.2) with sodium azide (0.02%, w/v) added as a preservative.