Recombinant Mouse S100 Calcium Binding Protein B

Source : Escherichia Coli. S100B Mouse Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 92 amino acids (1-112 a.a.) and having a molecular mass of 12.8 kDa. The Mouse S100B is fused to a 20 amino acid His-Tag at N-terminus and purified by proprietary chromatographic techniques. S100B faintly binds calcium but binds zinc extremely strongly-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. S100B binds to and initiates the activation of STK38 by releasing autoinhibitory intramolecular interactions within the kinase. Interaction with AGER after myocardial infarction participates in myocyte apoptosis by activating ERK1/2 and p53/TP53 signaling.