the activity of a ca2+- and cyclic nucleotide-independent protein kinase ( s ) which catalyzes hyperphosphorylation of a set of endogenous proteins , including a 95-kda soluble phosphoprotein , is found to fluctuate in both the meiotic and mitotic cell cycles of xenopus oocytes and activated eggs .
C0033684
protein
C0031689
phosphoprotein