Fig. 3From: Detection and sequence/structure mapping of biophysical constraints to protein variation in saturated mutational libraries and protein sequence alignments with a dedicated serverComparative analyses of deep sequencing data on two closely related HIV RNP variants. a Pie charts summarizing how frequently was each amino acid descriptor picked as the best one for sites in RNP from HIV strains 1934 and 1968. b Sites shaped by isoelectric point with positive (blue) and negative (red) trends in the data for strain 1968 (PDB ID 2IQH [67])Back to article page