Table 4

Potential associations between pig olfactory receptor gene clusters and odorant recognition
Pig OR cluster Mouse and human ORs with known odorant recognition1 Pig ORs with sequence similarity Amino acid sequence identity( %) Recognized odorant(s) Perceived odor
9-4 Olfr2 sOR6T9 90 n-aliphatic aldehydes Fatty
9-4 Olfr690 sOR52I8 89 n-aliphatic acids/alcohols As above
12-51 OR1D2 sOR1N1 87 Bourgeonal Lily of the valley
4-99 Olfr16 sOR10D1 85 Lyral Lemony, green
7-82 Olfr49 sOR6I1 85 (−) citronellal Lemon
7-84 Olfr749 sOR11A6 85 n-aliphatic acids Rancid, sour, sweaty, fatty
9-5 Olfr653 sOR52J1 85 n-aliphatic acids/alcohols As above
9-5 Olfr642 sOR51C2 83 n-aliphatic acids As above
9-57 Olfr151 sOR8O1 81 Acetophenone Floral/woody
2-159 Olfr73 sOR5I2 80 Eugenol Spicy
9-2 Olfr480 sOR5AA3 79 n-aliphatic alcohols Herbal, woody, orange, rose
9-4 Olfr661 sOR53B4 79 n-aliphatic acids/alcohols As above
9-6 Olfr69 sOR52D3 79 n-aliphatic acids/alcohols As above
1-295 Olfr74 sOR1L2 74 Ethyl vanillin Vanilla
2-14 Olfr154 sOR5T3 74 2-Heptanone Fruity
1-295 Olfr50 sOR1L7 73 I-carvone Spearmint, caraway
9-4 Olfr683 sOR53A1 73 n-aliphatic acids/alcohols As above
3-8 Olfr56 sOR2N1 60 Limonene Lemon
9-4 Olfr672 sOR52I10 57 n-aliphatic acids Rancid, sour, sweaty, fatty
9-5 Olfr586 sOR51V2 52 n-aliphatic acids As above
9-6 Olfr545 sOR52H3 42 n-aliphatic dicarboxylic acids
- OR3A1 - - Helional Sweet, hay-like

Note: A dash (−) indicates the absence of corresponding pig ORs. The order of pig OR clusters was based on the amino acid sequence identity (4th column).

Nguyen et al.

Nguyen et al. BMC Genomics 2012 13:584   doi:10.1186/1471-2164-13-584

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