New Database Available - Released on 02/10/2026.
112
Unique InChIKey
1
Unique Receptor Sequence
1
Unique Co-Receptor Sequence
0
EC50 Parameter
2
Unique DOI
Receptor Name
Accession
Identity (%)
Species
Mutations
Sequence
Or19a Q9I816 100.00 Drosophila melanogaster MDISKVDSTRALVNHWRIFRIMGIHPPGKR ...
Showing 61 to 90 of 124 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 Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Formic acid
Methanoic acid
64-18-6 BDAGIHXWWSANSR-UHFFFAOYSA-N 284 C(=O)O Monomolecular No Primary 0 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Methyl Octanoate 111-11-5 JGHZJRVDZXSNKQ-UHFFFAOYSA-N 8091 CCCCCCCC(=O)OC Monomolecular No Primary 0 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Ammonium Hydroxide 1336-21-6 VHUUQVKOLVNVRT-UHFFFAOYSA-N 14923 [NH4+].[OH-] Monomolecular No Primary 1 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Methyl Salicylate 119-36-8 OSWPMRLSEDHDFF-UHFFFAOYSA-N 4133 COC(=O)C1=CC=CC=C1O Monomolecular No Primary 1 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... gamma-Octalactone
Gamma Octalactone
104-50-7 IPBFYZQJXZJBFQ-UHFFFAOYSA-N 7704 CCCCC1CCC(=O)O1 Sum of Isomers No Primary 2 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Geraniol 106-24-1 GLZPCOQZEFWAFX-JXMROGBWSA-N 637566 CC(=CCC/C(=C/CO)/C)C Monomolecular No Primary 2 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Acetic Acid 64-19-7 QTBSBXVTEAMEQO-UHFFFAOYSA-N 176 CC(=O)O Monomolecular No Primary 3 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Acetophenone 98-86-2 KWOLFJPFCHCOCG-UHFFFAOYSA-N 7410 CC(=O)C1=CC=CC=C1 Monomolecular No Primary 5 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Propionic Acid
Propanoic acid
79-09-4 XBDQKXXYIPTUBI-UHFFFAOYSA-N 1032 CCC(=O)O Monomolecular No Primary 5 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Hexyl butyrate 2639-63-6 XAPCMTMQBXLDBB-UHFFFAOYSA-N 17525 CCCCCCOC(=O)CCC Monomolecular No Primary 6 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Ethyl Acetate 141-78-6 XEKOWRVHYACXOJ-UHFFFAOYSA-N 8857 CCOC(=O)C Monomolecular No Primary 7 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Isobutyric Acid 79-31-2 KQNPFQTWMSNSAP-UHFFFAOYSA-N 6590 CC(C)C(=O)O Monomolecular No Primary 7 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... 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 7 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... 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 9 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Geranyl Acetate 105-87-3 HIGQPQRQIQDZMP-DHZHZOJOSA-N 1549026 CC(=CCC/C(=C/COC(=O)C)/C)C Monomolecular No Primary 9 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... 1-Propanol 71-23-8 BDERNNFJNOPAEC-UHFFFAOYSA-N 1031 CCCO Monomolecular No Primary 10 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Butyric Acid 107-92-6 FERIUCNNQQJTOY-UHFFFAOYSA-N 264 CCCC(=O)O Monomolecular No Primary 10 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... 2-Phenylethanol
Phenethyl alcohol
60-12-8 WRMNZCZEMHIOCP-UHFFFAOYSA-N 6054 C1=CC=C(C=C1)CCO Monomolecular No Primary 14 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Citronellol
beta-citronellol
106-22-9 QMVPMAAFGQKVCJ-UHFFFAOYSA-N 8842 CC(CCC=C(C)C)CCO Sum of Isomers No Primary 18 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Acetaldehyde 75-07-0 IKHGUXGNUITLKF-UHFFFAOYSA-N 177 CC=O Monomolecular No Primary 19 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... P-Cymene 99-87-6 HFPZCAJZSCWRBC-UHFFFAOYSA-N 7463 CC1=CC=C(C=C1)C(C)C Monomolecular No Primary 20 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... (-)-Caryophyllene
(-)-trans-caryophyllene
87-44-5 NPNUFJAVOOONJE-GFUGXAQUSA-N 5281515 C/C/1=C\CCC(=C)[C@H]2CC([C@@H]2CC1)(C)C Monomolecular No Primary 21 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... (+-)-alpha-Pinene
.alpha.-Pinene
80-56-8 GRWFGVWFFZKLTI-UHFFFAOYSA-N 6654 CC1=CCC2CC1C2(C)C Sum of Isomers No Primary 21 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Myrcene
beta-myrcene
123-35-3 UAHWPYUMFXYFJY-UHFFFAOYSA-N 31253 CC(=CCCC(=C)C=C)C Monomolecular No Primary 21 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Isovaleric Acid
Isopentanoic acid
503-74-2 GWYFCOCPABKNJV-UHFFFAOYSA-N 10430 CC(C)CC(=O)O Monomolecular No Primary 21 Spikes/s Norm. receptor 0.01 V/V 4 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Nerol 106-25-2 GLZPCOQZEFWAFX-YFHOEESVSA-N 643820 CC(=CCC/C(=C\CO)/C)C Monomolecular No Primary 22 Spikes/s Norm. receptor 0.01 V/V 6 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Diethyl succinate 123-25-1 DKMROQRQHGEIOW-UHFFFAOYSA-N 31249 CCOC(=O)CCC(=O)OCC Monomolecular No Primary 24 Spikes/s Norm. receptor 0.01 V/V 6 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Ethyl Lactate 97-64-3 LZCLXQDLBQLTDK-UHFFFAOYSA-N 7344 CCOC(=O)C(C)O Sum of Isomers No Primary 24 Spikes/s Norm. receptor 0.01 V/V 6 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Ethyl 3-Hydroxybutyrate 5405-41-4 OMSUIQOIVADKIM-UHFFFAOYSA-N 62572 CCOC(=O)CC(C)O Sum of Isomers No Primary 30 Spikes/s Norm. receptor 0.01 V/V 6 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
Drosophila melanogaster Or19a Q9I816 - MDISKVDSTRALVNHWRIFRIMGIHPPGKR ... Drosophila melanogaster Orco Q9VNB5 - MTTSMQPSKYTGLVADLMPNIRAMKYSGLF ... Hexanoic Acid 142-62-1 FUZZWVXGSFPDMH-UHFFFAOYSA-N 8892 CCCCCC(=O)O Monomolecular No Primary 30 Spikes/s Norm. receptor 0.01 V/V 6 Single Sensillum Recording glass electrode Spiking Frequency Drosophila ab3A Or22a-Gal4 Airborne Paper 5.9 mL/s 24 mL/s 500 ms Hallem, E. A., & Carlson, J. R ... 10.1016/j.cell.2006.01.050 Table S1
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