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  • Title: Fractionation and partial purification of rat liver nuclear protein kinases.
    Author: Goueli SA, Ahmed K.
    Journal: Int J Biochem; 1983; 15(9):1109-18. PubMed ID: 6311639.
    Abstract:
    We have fractional and partially purified several rat liver nuclear protein kinases by utilizing endogenous (nonhistone proteins) and exogenous acidic (dephosphophosvitin) and basic (lysine-rich histone) protein substrates. Three enzymes were active towards endogenous substrates, two towards dephosphophosvitin and two towards lysine-rich histone. Of the latter only one was cAMP-dependent, however, only minimal cAMP binding activity was detected. Several features of these enzyme reactions are described revealing distinct differences in the characteristics of each of these enzymes.
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