Experimental flow.

<p>Flow of the testing of the subtype C GPRT amplicons in the pGEM-HIV-1-C-Δgprt-BstEII-V (pHIV-1-C-Δgprt) and the pGEM-HXB2-Δgprt-BstEII (pHIV-1-B-Δgprt) backbones. “TRF”: transfection (Amaxa); “FC”: Fold Change; Red boxes: phenotypes; Green boxes: genotypes.</p>