Variants of the yeast MAPK Mpk1 are fully functional independently of activation loop phosphorylation.
Goshen-Lago T, Goldberg-Carp A, Melamed D, Darlyuk-Saadon I, Bai C, Ahn NG, Admon A, Engelberg D. Variants of the yeast MAPK Mpk1 are fully functional independently of activation loop phosphorylation. Mol Biol Cell. 2016 09 01; 27(17):2771-83.