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. 2011 Jul 7;286(34):29575–29583. doi: 10.1074/jbc.M111.268235

FIGURE 4.

FIGURE 4.

Extending the RNA PPT primer by more than 18 DNA residues sensitizes the NNTIs while decreasing the potency of the NNRTIs. A, diagram of the chimeric primer/template substrates. B, time course of the different chimeric primer/template substrates. C, compound potency was established for each chimeric primer using the optimal reaction time derived from the time-course experiment showed in B (DNA PPT and RNA PPT+24D = 5 min; RNA PPT, RNA PPT+12D, and RNA PPT+18D = 30 min). D, -fold change in potency of RT inhibitors (IC50 using the chimeric primer/IC50 using the pure RNA PPT primer) upon addition of DNA residues at the 3′-end of the RNA PPT primer.