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14-3-3 Proteins

14-3-3 proteins constitute a highly conserved family of homo- and heterodimeric proteins present in high abundance in all eukaryotic cells. 14-3-3 proteins act as key regulators of intracellular signal transduction through their ability to bind specific motifs containing phosphorylated serine or threonine residues. There are at least seven distinct 14-3-3 genes in vertebrates: alpha/beta, epsilon, eta, gamma, theta, sigma, and zeta/delta.