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  • Title: [Human erythrocyte protein kinases (author's transl)].
    Author: Boivin P.
    Journal: Sem Hop; ; 56(5-6):287-96. PubMed ID: 6243804.
    Abstract:
    Cyclic AMP dependent and independent protein kinase activities are present in membrane as well as cytosol of human erythrocyte. Red cell membrane contains at least: 1) a cAMP dependent histone kinase type I using ATP as phosphoryl donor; 2) a cAMP independent casein kinase using ATP or GTP as phosphoryl donor; this kinase probably phosphorylates erythrocyte spectrin. In lysate of human red cell there are two or three cAMP dependent protein kinase type I and II and one cAMP independent casein kinase. Characteristics of these protein kinase activities are reviewed. Membrane substrates are numbered taking into account that the activity assays are often of dubious value. Several phosphorylation abnormalities previously reported in hematologic and non-hematologic disorders are still uncertain and at present time not any red cell protein kinase deficiency has been demonstrated.
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