Selective substrates and inhibitors have been used to measure kinases phosphorylating endogenous proteins in rat liver nuclei during growth and regeneration after partial hepatectomy. Peaks in activity were found at 5, 22, and 29 hours after partial hepatectomy. Administration of α1 and β adrenergic blockers suggested that the Be2+ sensitive and cyclic AMP-dependent protein kinases were interdependently regulated by Ca2+ and cyclic AMP.
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© 1986 Plenum Publishing Corporation
1986
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