S100A1
(redirected from S100 alpha)S100A1
A 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.Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.