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Table 1 Distribution of 3983 OR sequences, total CPs and species-specific CPs according to species

From: Common peptides shed light on evolution of Olfactory Receptors

Species Number of ORs Number of observed CPs Number of species-specific CPs Percentage of species-specific CPs
pufferfish 44 193 11 5.7%
zebrafish 97 352 60 17.0%
Frog 409 1179 143 12.1%
Lizard 120 945 17 1.8%
Chicken 78 644 15 2.3%
Platypus 250 1406 26 1.8%
Opossum 846 2030 48 2.4%
Dog 814 2083 40 1.9%
Mouse 978 2179 66 3.0%
Human 391 1889 8 0.4%