New Database Available - Released on 29/09/2026.
147
Unique InChIKey
1
Unique Receptor Sequence
1
Unique Co-Receptor Sequence
0
EC50 Parameter
4
Unique DOI
Receptor Name
Accession
Identity (%)
Species
Mutations
Sequence
Or2a O46077 100.00 Drosophila melanogaster MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ...
Showing 61 to 90 of 176 results
 
Species
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Mutated
Species
Name
Mutated
Name
Mixture
Responsive
Parameter
Value Nature
Nb. Measurements
–
Experimental Technique
Recording System
Type
Expression System
Expression Cell Type
Expression Driver
Odor Delivery System
Reference
Receptor Co-Receptor Molecule Response Bioassay Resources
Species
Name
Accession
Mutation
Sequence
Species
Name
Accession
Mutation
Sequence
Name
CAS
InChIKey
CID
SMILES
Mixture
Responsive
Parameter
Value
Value Nature
Concentration
Nb. measurements
Experimental Technique
Recording System
Type
Expression System
Expression Cell Type
Expression Driver
Odor Delivery System
Stimulation Flux
Main Flux
Stimulation Duration
Reference
DOI
Reference Position
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Eugenol 97-53-0 RRAFCDWBNXTKKO-UHFFFAOYSA-N 3314 COC1=C(C=CC(=C1)CC=C)O Monomolecular No Primary 4 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Hexyl butyrate 2639-63-6 XAPCMTMQBXLDBB-UHFFFAOYSA-N 17525 CCCCCCOC(=O)CCC Monomolecular No Primary 4 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Isovaleric Acid
Isopentanoic acid
503-74-2 GWYFCOCPABKNJV-UHFFFAOYSA-N 10430 CC(C)CC(=O)O Monomolecular No Primary 4 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Acetic Acid 64-19-7 QTBSBXVTEAMEQO-UHFFFAOYSA-N 176 CC(=O)O Monomolecular No Primary 5 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Benzaldehyde 100-52-7 HUMNYLRZRPPJDN-UHFFFAOYSA-N 240 C1=CC=C(C=C1)C=O Monomolecular No Primary 5 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Ethyl caprate
ethyl decanoate
110-38-3 RGXWDWUGBIJHDO-UHFFFAOYSA-N 8048 CCCCCCCCCC(=O)OCC Monomolecular No Primary 5 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Methyl Acetate 79-20-9 KXKVLQRXCPHEJC-UHFFFAOYSA-N 6584 CC(=O)OC Monomolecular No Primary 5 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Methyl Salicylate 119-36-8 OSWPMRLSEDHDFF-UHFFFAOYSA-N 4133 COC(=O)C1=CC=CC=C1O Monomolecular No Primary 5 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... 2,3-Butanediol 513-85-9 OWBTYPJTUOEWEK-UHFFFAOYSA-N 262 CC(C(C)O)O Sum of Isomers No Primary 6 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Putrescine 110-60-1 KIDHWZJUCRJVML-UHFFFAOYSA-N 1045 C(CCN)CN Monomolecular No Primary 6 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... gamma-Octalactone
Gamma Octalactone
104-50-7 IPBFYZQJXZJBFQ-UHFFFAOYSA-N 7704 CCCCC1CCC(=O)O1 Sum of Isomers No Primary 7 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Pentanoic Acid 109-52-4 NQPDZGIKBAWPEJ-UHFFFAOYSA-N 7991 CCCCC(=O)O Monomolecular No Primary 7 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Methyl Ethyl Ketone
2-Butanone
78-93-3 ZWEHNKRNPOVVGH-UHFFFAOYSA-N 6569 CCC(=O)C Monomolecular No Primary 8 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... 3-(Methylthio)-1-propanol 505-10-2 CZUGFKJYCPYHHV-UHFFFAOYSA-N 10448 CSCCCO Monomolecular No Primary 8 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Hexanoic Acid 142-62-1 FUZZWVXGSFPDMH-UHFFFAOYSA-N 8892 CCCCCC(=O)O Monomolecular No Primary 8 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Nerol 106-25-2 GLZPCOQZEFWAFX-YFHOEESVSA-N 643820 CC(=CCC/C(=C\CO)/C)C Monomolecular No Primary 8 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Gamma-Butyrolactone 96-48-0 YEJRWHAVMIAJKC-UHFFFAOYSA-N 7302 C1CC(=O)OC1 Monomolecular No Primary 9 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Methanol 67-56-1 OKKJLVBELUTLKV-UHFFFAOYSA-N 887 CO Monomolecular No Primary 10 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Phenylacetaldehyde 122-78-1 DTUQWGWMVIHBKE-UHFFFAOYSA-N 998 C1=CC=C(C=C1)CC=O Monomolecular No Primary 10 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Butyric Acid 107-92-6 FERIUCNNQQJTOY-UHFFFAOYSA-N 264 CCCC(=O)O Monomolecular No Primary 11 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Ethyl trans-crotonate
Ethyl trans-2-butenoate
623-70-1 ZFDIRQKJPRINOQ-HWKANZROSA-N 429065 CCOC(=O)/C=C/C Monomolecular No Primary 11 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Furfural 98-01-1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 7362 C1=COC(=C1)C=O Monomolecular No Primary 11 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... 2-Phenylethyl Acetate
Phenethyl acetate
103-45-7 MDHYEMXUFSJLGV-UHFFFAOYSA-N 7654 CC(=O)OCCC1=CC=CC=C1 Monomolecular No Primary 11 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Ethyl butyrate 105-54-4 OBNCKNCVKJNDBV-UHFFFAOYSA-N 7762 CCCC(=O)OCC Monomolecular No Primary 12 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Acrolein
2-Propenal
107-02-8 HGINCPLSRVDWNT-UHFFFAOYSA-N 7847 C=CC=O Monomolecular No Primary 14 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... gamma-Hexalactone 695-06-7 JBFHTYHTHYHCDJ-UHFFFAOYSA-N 12756 CCC1CCC(=O)O1 Sum of Isomers No Primary 15 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Diethyl Succinate 123-25-1 DKMROQRQHGEIOW-UHFFFAOYSA-N 31249 CCOC(=O)CCC(=O)OCC Monomolecular No Primary 16 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... trans-2-Hexenal
(E)-2-Hexenal
6728-26-3 MBDOYVRWFFCFHM-SNAWJCMRSA-N 5281168 CCC/C=C/C=O Monomolecular No Primary 17 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Linalool 78-70-6 CDOSHBSSFJOMGT-UHFFFAOYSA-N 6549 CC(=CCCC(C)(C=C)O)C Sum of Isomers No Primary 17 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or2a O46077 - MEKQEDFKLNTHSAVYYHWRVWELTGLMRP ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Propanal 123-38-6 NBBJYMSMWIIQGU-UHFFFAOYSA-N 527 CCC=O Monomolecular No Primary 18 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording tungsten electrode SSR Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s N.A. Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
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