References
(1) RCSB. Protein Data Bank. http://www.rcsb.org/pdb/home/home.do 
(2) Wagner, F., et al., 2016. Inhibitors of Glycogen Synthase Kinase 3 with Exquisite Kinome-Wide Selectivity and Their Functional Effects. ACS Chemical Biology 11: 1952-1963.
(3)Carbain, B., et al., 2014. 8?Substituted O6?Cyclohexylmethylguanine CDK2 Inhibitors: Using Structure-Based Inhibitor Design to Optimize an Alternative Binding Mode. Journal of Medicinal Chemistry 57: 56-70.
(4) Protein identification and analysis tools on the ExPASy server. Gasteiger, E. et. al. In J. M. Walker (Ed.) The proteomics protocols handbook. Totowa, New Jersey: Humana Press Inc. 2005.
(5) Woodgett, J., 1990. Molecular cloning and expression of glycogen synthase kinase-3/Factor A. The EMBO Journal 9: 2431-2438.
(6) Matsuda, T., et al., 2008. Distinct roles of GSK-3alpha and GSK-3beta phosphorylation in the heart under pressure overload. Proc. Natl. Acad. Sci. U. S. A. 105: 20900−20905.
(7) Hughes, K., et al., 1993. Modulation of the glycogen synthase kinase-3 family by tyrosine phosphorylation. The EMBO Journal 12: 803-808.
(8) Ryves, W., et al., 2002. Glycogen Synthase Kinase-3 Inhibition by Lithium and Beryllium Suggests the Presence of Two Magnesium Binding Sites. Biochemical and Biophysical Research Communication 290: 967- 972.
(9) Dali server: conservation mapping in 3D. Nucl. Acids Res. 38, W545-549. Holm L, Rosenström, P. 2010.
(10) Basic Local Alignment Search Tool. National Center for Biotechnology Information. 2012. http://www.ncbi.nlm.nih.gov/blast/Blast.cgi
(11) De Bont, H., et al., 1993. Crystal structure of cyclin-dependent kinase 2. Nature 363: 595-602.