S100 calcium-binding protein A5 (S100A5) is a protein that in humans is encoded by the S100A5gene.[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 a Ca2+ affinity 20- to 100-fold higher than the other S100 proteins studied under identical conditions. This protein also binds Zn2+ and Cu2+, and Cu2+ strongly which impairs the binding of Ca2+. This protein is expressed in very restricted regions of the adult brain.[6]
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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.
Bronckart Y, Decaestecker C, Nagy N, et al. (2002). "Development and progression of malignancy in human colon tissues are correlated with expression of specific Ca(2+)-binding S100 proteins". Histol. Histopathol. 16 (3): 707–12. PMID11510959.
Teratani T, Watanabe T, Yamahara K, et al. (2002). "Restricted expression of calcium-binding protein S100A5 in human kidney". Biochem. Biophys. Res. Commun. 291 (3): 623–7. doi:10.1006/bbrc.2002.6494. PMID11855835.