PT Journal AU Kochs, G Hummel, R Meyer, DM Hug, H Marme, D Sarre, TF TI Activation and substrate specificity of the human protein kinase C alpha and zeta isoenzymes SO European journal of biochemistry PY 1993 BP 597 EP 606 VL 216 IS 2 DI 10.1111/j.1432-1033.1993.tb18179.x LA english ER