Figure 3From: Pairwise and higher-order correlations among drug-resistance mutations in HIV-1 subtype B proteaseScatterplot of distance vs Ï• statistic for drug associated positions in red and non-drug associated positions in black for the PI0 (A) and PI2+ (B) cohorts. The value along the y-axis is the closest distance between any two heavy atoms of the two residues based on the crystal structure of wild type protease (PDB ID 1PRO).Back to article page