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The removal of the SP (A) or the PPT (B) by various RTs in the absence or presence of Tf1 IN. Primer removal activities of wild-type Tf1, HIV-1, and MLV RTs as well as of the Tf1 RT that lacks RNase H activity (RH-RT) were tested in the absence or presence of Tf1 IN (at IN/RT molar ratios of 2:1).
