Figure 1From: Benchmarking of protein descriptor sets in proteochemometric modeling (part 1): comparative study of 13 amino acid descriptor setsPrincipal components resulting from the PCA on 58 AAindices making the ProtFP descriptor set. (A) AAs that share physicochemical properties cluster together (see text for discussion of details). The amount of variance explained by each principal component is shown in brackets. (B) The corresponding loadings plot where the numbers correspond to Additional file 1: Table S1.Back to article page