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 31 to 60 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 ... 2,3-Butanediol 513-85-9 OWBTYPJTUOEWEK-UHFFFAOYSA-N 262 CC(C(C)O)O Sum of Isomers 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 ... Heptanoic Acid 111-14-8 MNWFXJYAOYHMED-UHFFFAOYSA-N 8094 CCCCCCC(=O)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 ... Nonanoic Acid 112-05-0 FBUKVWPVBMHYJY-UHFFFAOYSA-N 8158 CCCCCCCCC(=O)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 ... Ethyl caprate
Ethyl decanoate
110-38-3 RGXWDWUGBIJHDO-UHFFFAOYSA-N 8048 CCCCCCCCCC(=O)OCC Monomolecular No Primary -17 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 formate
Ethyl methanoate
109-94-4 WBJINCZRORDGAQ-UHFFFAOYSA-N 8025 CCOC=O Monomolecular No Primary -17 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 Ethyl Ketone
2-Butanone
78-93-3 ZWEHNKRNPOVVGH-UHFFFAOYSA-N 6569 CCC(=O)C Monomolecular No Primary -16 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 ... O-Cresol
2-Methylphenol
95-48-7 QWVGKYWNOKOFNN-UHFFFAOYSA-N 335 CC1=CC=CC=C1O Monomolecular No Primary -16 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 ... Eugenol 97-53-0 RRAFCDWBNXTKKO-UHFFFAOYSA-N 3314 COC1=C(C=CC(=C1)CC=C)O Monomolecular No Primary -16 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 ... Methanol 67-56-1 OKKJLVBELUTLKV-UHFFFAOYSA-N 887 CO Monomolecular No Primary -16 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 ... Benzaldehyde 100-52-7 HUMNYLRZRPPJDN-UHFFFAOYSA-N 240 C1=CC=C(C=C1)C=O Monomolecular No Primary -15 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 Propionate 105-37-3 FKRCODPIKNYEAC-UHFFFAOYSA-N 7749 CCC(=O)OCC Monomolecular No Primary -13 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 Acetate 79-20-9 KXKVLQRXCPHEJC-UHFFFAOYSA-N 6584 CC(=O)OC Monomolecular No Primary -13 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 ... Acrolein
2-Propenal
107-02-8 HGINCPLSRVDWNT-UHFFFAOYSA-N 7847 C=CC=O Monomolecular No Primary -12 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 ... Ethanol 64-17-5 LFQSCWFLJHTTHZ-UHFFFAOYSA-N 702 CCO Monomolecular No Primary -12 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 Benzoate 93-58-3 QPJVMBTYPHYUOC-UHFFFAOYSA-N 7150 COC(=O)C1=CC=CC=C1 Monomolecular No Primary -12 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 ... 4-Ethylguaiacol 2785-89-9 CHWNEIVBYREQRF-UHFFFAOYSA-N 62465 CCC1=CC(=C(C=C1)O)OC 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 ... 3-(Methylthio)-1-propanol 505-10-2 CZUGFKJYCPYHHV-UHFFFAOYSA-N 10448 CSCCCO 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 ... Benzyl Alcohol 100-51-6 WVDDGKGOMKODPV-UHFFFAOYSA-N 244 C1=CC=C(C=C1)CO 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 ... Putrescine 110-60-1 KIDHWZJUCRJVML-UHFFFAOYSA-N 1045 C(CCN)CN 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 ... Ethyl octanoate 106-32-1 YYZUSRORWSJGET-UHFFFAOYSA-N 7799 CCCCCCCC(=O)OCC Monomolecular No Primary -8 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 ... Humulene
alpha-humulene
6753-98-6 FAMPSKZZVDUYOS-HRGUGZIWSA-N 5281520 C/C/1=C\CC(/C=C/C/C(=C/CC1)/C)(C)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 ... Gamma-Butyrolactone 96-48-0 YEJRWHAVMIAJKC-UHFFFAOYSA-N 7302 C1CC(=O)OC1 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 benzoate 93-89-0 MTZQAGJQAFMTAQ-UHFFFAOYSA-N 7165 CCOC(=O)C1=CC=CC=C1 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 ... Methyl butyrate 623-42-7 UUIQMZJEGPQKFD-UHFFFAOYSA-N 12180 CCCC(=O)OC 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 ... Cadaverine 462-94-2 VHRGRCVQAFMJIZ-UHFFFAOYSA-N 273 C(CCN)CCN 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 ... Lactic Acid 50-21-5 JVTAAEKCZFNVCJ-UHFFFAOYSA-N 612 CC(C(=O)O)O Sum of Isomers No Primary -4 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-Hexalactone 695-06-7 JBFHTYHTHYHCDJ-UHFFFAOYSA-N 12756 CCC1CCC(=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 ... 2-Pentanone 107-87-9 XNLICIUVMPYHGG-UHFFFAOYSA-N 7895 CCCC(=O)C 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 ... Propyl Acetate 109-60-4 YKYONYBAUNKHLG-UHFFFAOYSA-N 7997 CCCOC(=O)C 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 ... Pyruvic Acid 127-17-3 LCTONWCANYUPML-UHFFFAOYSA-N 1060 CC(=O)C(=O)O 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
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