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. 2016 Apr 4;7:11157. doi: 10.1038/ncomms11157

Figure 2. Transferability of the intra-ring TPSA rule.

Figure 2

(a) Venn diagram of OSNs responding to the single-ring ketones [1], [2] and [3]. If an OSN responds to [1] and [3] it always responds to [2]. (b) Venn diagram of OSNs responding to the double-ring ketones [7], [8] and [9]. If an OSN responds to [7] and [9], it always responds to [8]. (c) Venn diagram of OSNs responding to the double-ring acids [10], [11] and [12]. If an OSN responds to [10] and [12] it always responds to [11]. (d) Venn diagram of OSNs responding to the single-ringed ketone [1], the double-ringed ketone [7] and the double-ringed acid [10]. Note that OSNs co-detecting the acid make up just a small portion of the overall responses. OSNs were counted and converted into surface area for each response combination using the eulerAPE free software. The number of OSNs responding with that pattern is indicated in that sector. All odorants were tested at 30 μM. Nb, total number of viable OSNs screened.