although this enzyme has chromatographic properties resembling those of described proteolytic fragments of other protein kinases , namely protein kinase c , protease-activated kinase ii and histone-4 protein kinase , and although insulin has been proposed by others to cause s6 phosphorylation via proteolytic protein kinase activation , the insulin-induced increase in s6-kinase activity described here is probably not due to proteolysis .
C0031727
kinase
C0031715
phosphorylation