S100A1(redirected from S-100 protein alpha chain)
S100A1A gene on chromosome 1q21 that encodes a member of the S100 family of proteins, which have 2 EF-hand calcium-binding motifs. S100 proteins are localised in the cytoplasm and/or nucleus of a wide range of cells, and involved in regulating cell cycle progression and differentiation and other intracellular activities.
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