tokens: Analysis of cell cycle proteins showed that 24 h of lovastatin treatment in the control cells caused an elevation in the levels of the cyclin dependent kinase inhibitor p27 ( kip1 ) , inhibition of both cyclin E- and cyclin A dependent kinase activity , and decreased levels of hyperphosphorylated retinoblastoma protein ( pRb ) .
folded_tokens: analysis of cell cycle protein show that 24 h of lovastatin treatment in the control cell cause a elevation in the level of the cyclin dependent kinase inhibitor p27 ( kip1 ) , inhibition of both cyclin e-_NN and cyclin a dependent kinase activity , and decrease level of hyperphosphorylate retinoblastoma protein ( prb ) .