S100 calcium-binding protein A3 (S100A3) is a protein that in humans is encoded by the S100A3gene.[5][6]
The protein encoded by this gene 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 has the highest content of cysteines of all S100 proteins, has a high affinity for Zinc, and is highly expressed in human hair cuticle. The precise function of this protein is unknown.[6]
Schäfer BW, Wicki R, Engelkamp D, et al. (1995). "Isolation of a YAC clone covering a cluster of nine S100 genes on human chromosome 1q21: rationale for a new nomenclature of the S100 calcium-binding protein family". Genomics. 25 (3): 638–43. doi:10.1016/0888-7543(95)80005-7. PMID7759097.
Böni R, Burg G, Doguoglu A, et al. (1997). "Immunohistochemical localization of the Ca2+ binding S100 proteins in normal human skin and melanocytic lesions". Br. J. Dermatol. 137 (1): 39–43. doi:10.1111/j.1365-2133.1997.tb03698.x. PMID9274623.
Mittl PR, Fritz G, Sargent DF, et al. (2003). "Metal-free MIRAS phasing: structure of apo-S100A3". Acta Crystallogr. D. 58 (Pt 8): 1255–61. doi:10.1107/S0907444902008430. PMID12136135.
Kizawa K, Troxler H, Kleinert P, et al. (2003). "Characterization of the cysteine-rich calcium-binding S100A3 protein from human hair cuticles". Biochem. Biophys. Res. Commun. 299 (5): 857–62. doi:10.1016/S0006-291X(02)02744-4. PMID12470658.