tokens: Here we show that phosphorylation induced loss of the protein kinase activity of DNA-PK is restored by the addition of the purified catalytic subunit of either protein phosphatase 1 or protein phosphatase 2A ( PP2A ) and that this reactivation is blocked by the potent protein phosphatase inhibitor , microcystin .
folded_tokens: here we show that phosphorylation induce loss of the protein kinase activity of dna-pk be restore by the addition of the purify catalytic subunit of either protein phosphatase 1 or protein phosphatase 2a ( pp2a ) and that this reactivation be block by the potent protein phosphatase inhibitor , microcystin .