S100B: Proteins and Enzymes

S100B belongs to the S100 subgroup of the EF-hand family of calcium binding proteins. It is a homodimer that is expressed primarily in the brain by astrocytes, oligodendrocytes and Schwann cells. S100B has multiple intracellular functions, but can also be secreted from cells to exert extracellular functions. Some of the extracellular functions o...