Protein kinase Calpha is differentially activated during neonatal and adult erythropoiesis and favors expression of a reporter gene under the control of the (A)gamma globin-promoter in cellular models of hemoglobin switching.

Abstract excerpt

PKCalpha was found to be expressed (mRNA and protein) throughout the in vitro maturation of primary human erythroblasts but its activity (phosphorylation levels and nuclear localization) was consistently higher in cells derived from human neonatal rather than adult blood. Since the gamma/gamma + beta globin expression ratio represented the major difference between neonatal and adult erythroblasts (58 +/- 12 vs. 7...

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