“…Protein kinases that are not regulated by cyclic nucleotides have been described in several tissues (Yamamura et al, 1970;Inoue et al, 1973;Lee et al, 1976;Hosey and Tao, 1977). These kinases have been located in the cytoplasmic, nuclear, mitochondrial, and plasma membrane fractions of the cell (Yamamura et al, 1970;Takedaet al, 1971; Ruddon and Anderson, 1972;Inoue et al, 1973; Clari et al, 1976; Lee et al, 1976;Hosey and Tao, 1977;Maragoudakis and Hankin, 1977; Henriksson and Jengil, 1979). They have been distinguished from each other by their subcellular distribution, exogenous substrate specificity, requirements for maximal activity, and the amino acid residue which they phosphorylate (Ozawa et al, 1967;Lebleu et al, 1976;Roberts et al, 1976; Dabrowska and Hartshorne, 1978;Schulman and Greengard, 1978;Yagi et al, 1978;Collett et al, 1980).…”