It appears that, in addition to inducing cell death, anthracyclines also inhibit protein phosphatase 1, which triggers exposure of calreticulin. Inhibition of protein phosphatase 1 by other drugs ...

and dephosphorylation (catalyzed by protein phosphatases). Protein kinases mediate most of the signal transduction events in cells by phosphorylation of specific substrates - modifying their activity, ...