Supplementary Figure 3: We calculated 20 chemical descriptors, previously shown to explain more than 62% of the variance in functional responses in a heterologous system, for 2718 odorants17.
From: The missense of smell: functional variability in the human odorant receptor repertoire
For display purposes, the odorants are projected onto a 2D space made of the first and second principal components. Black crosses represent all 2718 odorants, red circles represent the 55 odorants chosen to span olfactory space.
