Fig. 7From: The mutational landscape of human olfactory G protein-coupled receptorsMutability landscapes of amino acid substitutions in human ORs. a The number of original (left) vs. changed (right) amino acids due to missense substitutions. Amino acid bars are colored by physico-chemical properties of the residues (blue = hydrophobic, green = polar, dark cyan = aromatic, purple = negatively charged, red = positively charged, salmon, yellow and orange = special residues Cys, Pro, and Gly). b Categorization of all amino acid replacements according to substitution scores extracted from GPCRtm. The color scale bar on top indicates the range of score values for all computed changes (negative = red, positive = blue)Back to article page