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Description

A cell-permeable, highly potent, selective, reversible, and ATP-competitive inhibitor of GSK-3alpha/beta (IC50 = 5 nM). Specificity was confirmed using various Cdk's (IC50 = 83 nM for Cdk5/p25, 300 nM for Cdk2/cyclin A, 320 nM for Cdk1/cyclin B, and 10 µ,M for Cdk4/cyclin D1), MAP kinases, PKA, PKC isoforms, PKG, CK, and IRTK (IC50 >= 10 µ,M). Inhibition of GSK by BIO has been shown to result in the activation of the Wnt signaling pathway and sustained pluripotency of human and murine embryonic stem cells (ESCs).