Figure 4From: Codon pairs of the HIV-1 vif gene correlate with CD4+ T cell count Positively selected codons in the structure of vif protein. Codons under positive selection were mapped in structure of Vif protein of HIV-1. Blue spheres indicate locations of positively selected codons. Cyan area designates the BC-Box and the Cullin5-Box. Grey areas indicate regions of Vif that bind to Apobec3 protein.Back to article page