Library  Probe  Number of plaques screened (× 103)  Number of sequences obtained  Number of real olfactory receptor sequences  True-positive rate  Olfactory receptor clone frequency  Number of olfactory receptor genes represented
Embryonic  OR5B_OR3B_40  640  58  37  64%  1/17,300  27
Adult  OR5B_OR3B_40  2,850  1,450  1,138  78%  1/2,500  394
P24_P28_40 and TM3deg1_P28_45  200  23  3  13%  1/66,700  3
P26_P27_45  700  135  58  43%  1/12,100  35
P24_P28_45  200  39  22  56%  1/9,100  19
OR5B_OR3B_45  150  10  6  60%  1/250,000  5
Total   4,740  1,715  1,264  74%  1/3,800  419