S100 Calcium Binding Protein A2 (S100A2)

S100 proteins, such as S100A2, are small, acidic Ca(2+)-binding proteins that transduce Ca(2+)-signals via interaction with intracellular target proteins (Mandinova et al., 1998).

S100 calcium binding protein A2 is a member of the S100 family of proteins containing 2 EF-hand calcium-binding motifs. S100 proteins are localized in the cytoplasm and/or nucleus of a wide range of cells, and involved in the regulation of a number of cellular processes such as cell cycle progression and differentiation. S100 genes include at least 13 members which are located as a cluster on chromosome 1q21. This protein may have a tumor suppressor function. Chromosomal rearrangements and altered expression of this gene have been implicated in breast cancer.