2.7.11.26	Mg2+	-	662124, 662127, 662134, 662152, 662261, 662284, 662302, 662313, 662388, 662674, 662686, 662688, 662690, 662855, 662870, 674847, 681536	
2.7.11.26	Mg2+	4 mM used in assay conditions	762225	
2.7.11.26	Mg2+	binding site structure	660602	
2.7.11.26	Mg2+	required	739843, 739962, 740125, 740135, 740244, 740410, 740423, 740530, 740531, 740691, 740882, 741065, 741395, 741409, 741419, 741440, 760847	
2.7.11.26	Mn2+	-	662870, 681536	
2.7.11.26	additional information	no effect on enzyme activity with Na+	741440	
2.7.11.26	additional information	not activated by K+, Ca2+ or Zn2+	681536	
2.7.11.26	Zn2+	high zinc concentrations (0.1-0.5 mM) increase glycogen synthase kinase-3beta phosphorylation on tyrosine 216, a phosphorylation associated with increased activity of this tau kinase, whereas the phosphorylation of GSK-3alpha at Y279 and the level of total GSK-3beta are not affected	702438