Abstract: The present invention provides methods, compositions and kits for modulating DSB repair processes in a subject in need thereof. More specifically, the invention provides the use of compounds that modulate the expression or activity of at least one APOBEC family member for modulating DSB repair processes.

Abstract: A method for detecting a drug-resistant virus, whose resistance is due to mutations in a viral protease which normally cleaves a substrate into at least two segments. The method comprises providing an electronic transducer having bound thereto a first binding molecule capable of specifically binding a first segment of the substrate and providing a second binding molecule capable of specifically binding a second segment of the substrate, the second binding molecule being capable of bringing about the precipitation of a precipitate on the electronic transducer. Detection of the presence or absence of the precipitate on the electronic transducer indicates the presence or absence of inhibitory activity of the drug. A screening method for potential viral drugs is also disclosed.