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APOBEC3G and APOBEC3B editing as a function of the distance from the cPPT in cPPT+ and cPPT− viruses. Editing was calculated as percentages of potential target sites for both APOBEC3G and APOBEC3B (cumulated GG and GA sequences) in windows of 50 bp. Sequence numbering is relative to the 5′ end of the cPPT. Dashed lines, functional cPPT; continuous lines, mutated, nonfunctional cPPT.
