The gene Odorant receptor co-receptor is referred to in FlyBase by the symbol Dmel\Orco (CG10609, FBgn0037324). It is a protein_coding_gene from Drosophila melanogaster. There is experimental evidence that it has the molecular function: protein homodimerization activity; olfactory receptor activity. There is experimental evidence that it is involved in the biological process: olfactory behavior; protein heterooligomerization; response to pheromone; behavioral response to ethanol. 27 alleles are reported. The phenotypes of these alleles are annotated with: olfactory receptor neuron; embryonic/larval olfactory receptor neuron; antennal sense organ. It has 2 annotated transcripts and 2 annotated polypeptides. Protein features are: Olfactory receptor, Drosophila. Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of moderate expression to a trough of no expression detected. Peak expression observed during late pupal stages, in adult male stages. Summary of FlyAtlas Anatomical Expression Data: Expression at moderate levels in the following post-embryonic organs or tissues: adult head. Comments on Affy2 ProbeSet: ProbeSet 1636134_at completely aligns to an exonic region common to each of the 2 FlyBase-annotated transcript isoforms of Or83b. Gene sequence location is 3R:1232905..1238128.
User Contributed Data
External Summaries
Recent Updates
Description
What does this section display?
This section contains items that were added to this record for each release.
It currently only tracks new links between this FlyBase report and other
FlyBase data classes (e.g. genes, references, stocks) or controlled
vocabulary terms (e.g. GO, anatomy terms).
What does this section not display?
This section does not currently display links that were removed or gene model changes.
Update Feed
Click the icon below to subscribe to this FlyBase record and receive updates automatically through your
feed reader.
FB2013_03
FB2013_02
All updates
Click here to see a list of all updates to this record from FB2010_08 and on.
Orco transcript is observed in the neurons of the basiconicum, trichodeum and coeloconic sensilla ac3 of the third segment of the antenna. In sensillum ac3 it is co-expressed with Ir75a, Ir75b, Or35a and Ir76b.
Summary of FlyAtlas Anatomical Expression Data: Expression at moderate levels in the following post-embryonic organs or tissues: adult head.
[download data (TSV)]
Guide to FlyAtlas expression level colors
No expression (0 - 9.999)
Low expression (10 - 99.999)
Moderate expression (100 - 499.999)
High level expression (500 - 999.999)
Very high expression (>999.999)
Linear, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
5.1
Larval Midgut
9.5
Larval Hindgut
9.9
Larval Malpighian Tubules
10
Larval Fat Body
16.6
Larval Salivary Gland
9.6
Larval Trachea
2.05
Larval Carcass
6.25
Adult Head
171.4
Adult Eye
16.275
Adult Brain
14.2
Adult Thoracic-Abdominal Ganglion
15.4
Adult Crop
6.2
Adult Midgut
15.7
Adult Hindgut
8
Adult Malpighian Tubules
5.6
Adult Fat Body
8.1
Adult Salivary Gland
11.1
Adult Heart
3.875
Adult VirginFemale Spermatheca
4
Adult InseminatedFemale Spermatheca
6
Adult Ovary
5.4
Adult Testis
6.2
Adult Male Accessory Gland
17.4
Adult Carcass
13
Expression Level Scale
None
Low
Moderate
Linear, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
5.1
Larval Midgut
9.5
Larval Hindgut
9.9
Larval Malpighian Tubules
10
Larval Fat Body
16.6
Larval Salivary Gland
9.6
Larval Trachea
2.05
Larval Carcass
6.25
Adult Head
171.4
Adult Eye
16.275
Adult Brain
14.2
Adult Thoracic-Abdominal Ganglion
15.4
Adult Crop
6.2
Adult Midgut
15.7
Adult Hindgut
8
Adult Malpighian Tubules
5.6
Adult Fat Body
8.1
Adult Salivary Gland
11.1
Adult Heart
3.875
Adult VirginFemale Spermatheca
4
Adult InseminatedFemale Spermatheca
6
Adult Ovary
5.4
Adult Testis
6.2
Adult Male Accessory Gland
17.4
Adult Carcass
13
Expression Level Scale
None
Low
Moderate
High
Linear, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
5.1
Larval Midgut
9.5
Larval Hindgut
9.9
Larval Malpighian Tubules
10
Larval Fat Body
16.6
Larval Salivary Gland
9.6
Larval Trachea
2.05
Larval Carcass
6.25
Adult Head
171.4
Adult Eye
16.275
Adult Brain
14.2
Adult Thoracic-Abdominal Ganglion
15.4
Adult Crop
6.2
Adult Midgut
15.7
Adult Hindgut
8
Adult Malpighian Tubules
5.6
Adult Fat Body
8.1
Adult Salivary Gland
11.1
Adult Heart
3.875
Adult VirginFemale Spermatheca
4
Adult InseminatedFemale Spermatheca
6
Adult Ovary
5.4
Adult Testis
6.2
Adult Male Accessory Gland
17.4
Adult Carcass
13
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
5.1
Larval Midgut
9.5
Larval Hindgut
9.9
Larval Malpighian Tubules
10
Larval Fat Body
16.6
Larval Salivary Gland
9.6
Larval Trachea
2.05
Larval Carcass
6.25
Adult Head
171.4
Adult Eye
16.275
Adult Brain
14.2
Adult Thoracic-Abdominal Ganglion
15.4
Adult Crop
6.2
Adult Midgut
15.7
Adult Hindgut
8
Adult Malpighian Tubules
5.6
Adult Fat Body
8.1
Adult Salivary Gland
11.1
Adult Heart
3.875
Adult VirginFemale Spermatheca
4
Adult InseminatedFemale Spermatheca
6
Adult Ovary
5.4
Adult Testis
6.2
Adult Male Accessory Gland
17.4
Adult Carcass
13
Expression Level Scale
Very high
log, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
5.1
Larval Midgut
9.5
Larval Hindgut
9.9
Larval Malpighian Tubules
10
Larval Fat Body
16.6
Larval Salivary Gland
9.6
Larval Trachea
2.05
Larval Carcass
6.25
Adult Head
171.4
Adult Eye
16.275
Adult Brain
14.2
Adult Thoracic-Abdominal Ganglion
15.4
Adult Crop
6.2
Adult Midgut
15.7
Adult Hindgut
8
Adult Malpighian Tubules
5.6
Adult Fat Body
8.1
Adult Salivary Gland
11.1
Adult Heart
3.875
Adult VirginFemale Spermatheca
4
Adult InseminatedFemale Spermatheca
6
Adult Ovary
5.4
Adult Testis
6.2
Adult Male Accessory Gland
17.4
Adult Carcass
13
Expression Level Scale
None
Low
Moderate
log, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
5.1
Larval Midgut
9.5
Larval Hindgut
9.9
Larval Malpighian Tubules
10
Larval Fat Body
16.6
Larval Salivary Gland
9.6
Larval Trachea
2.05
Larval Carcass
6.25
Adult Head
171.4
Adult Eye
16.275
Adult Brain
14.2
Adult Thoracic-Abdominal Ganglion
15.4
Adult Crop
6.2
Adult Midgut
15.7
Adult Hindgut
8
Adult Malpighian Tubules
5.6
Adult Fat Body
8.1
Adult Salivary Gland
11.1
Adult Heart
3.875
Adult VirginFemale Spermatheca
4
Adult InseminatedFemale Spermatheca
6
Adult Ovary
5.4
Adult Testis
6.2
Adult Male Accessory Gland
17.4
Adult Carcass
13
Expression Level Scale
None
Low
Moderate
High
log, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
5.1
Larval Midgut
9.5
Larval Hindgut
9.9
Larval Malpighian Tubules
10
Larval Fat Body
16.6
Larval Salivary Gland
9.6
Larval Trachea
2.05
Larval Carcass
6.25
Adult Head
171.4
Adult Eye
16.275
Adult Brain
14.2
Adult Thoracic-Abdominal Ganglion
15.4
Adult Crop
6.2
Adult Midgut
15.7
Adult Hindgut
8
Adult Malpighian Tubules
5.6
Adult Fat Body
8.1
Adult Salivary Gland
11.1
Adult Heart
3.875
Adult VirginFemale Spermatheca
4
Adult InseminatedFemale Spermatheca
6
Adult Ovary
5.4
Adult Testis
6.2
Adult Male Accessory Gland
17.4
Adult Carcass
13
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
5.1
Larval Midgut
9.5
Larval Hindgut
9.9
Larval Malpighian Tubules
10
Larval Fat Body
16.6
Larval Salivary Gland
9.6
Larval Trachea
2.05
Larval Carcass
6.25
Adult Head
171.4
Adult Eye
16.275
Adult Brain
14.2
Adult Thoracic-Abdominal Ganglion
15.4
Adult Crop
6.2
Adult Midgut
15.7
Adult Hindgut
8
Adult Malpighian Tubules
5.6
Adult Fat Body
8.1
Adult Salivary Gland
11.1
Adult Heart
3.875
Adult VirginFemale Spermatheca
4
Adult InseminatedFemale Spermatheca
6
Adult Ovary
5.4
Adult Testis
6.2
Adult Male Accessory Gland
17.4
Adult Carcass
13
Expression Level Scale
None
Low
Moderate
High
Very high
Heatmap
Tissue
Expression Level
Larval Central Nervous System
Larval Midgut
Larval Hindgut
Larval Malpighian Tubules
Larval Fat Body
Larval Salivary Gland
Larval Trachea
Larval Carcass
Adult Head
Adult Eye
Adult Brain
Adult Thoracic-Abdominal Ganglion
Adult Crop
Adult Midgut
Adult Hindgut
Adult Malpighian Tubules
Adult Fat Body
Adult Salivary Gland
Adult Heart
Adult VirginFemale Spermatheca
Adult InseminatedFemale Spermatheca
Adult Ovary
Adult Testis
Adult Male Accessory Gland
Adult Carcass
FlyAtlas Organ/Tissue Expression, larval vs. adult
Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of moderate expression to a trough of no expression detected. Peak expression observed during late pupal stages, in adult male stages.
[download data (TSV)]
Please Note FlyBase no
longer curates genomic clone accessions so this list
may not be complete
cDNA Clones ( 11 )
Please Note
This section lists
cDNAs and ESTs that fall within the genomic extent
of the gene model, which may include cDNAs and ESTs
of genes within introns, or of overlapping genes.
Please see GBrowse for alignment of the cDNAs and ESTs
to the gene model.
Asymmetric neurotransmitter release enables rapid odour lateralization in Drosophila. [FBrf0220588]
German et al., 2013, Insect Biochem. Mol. Biol. 43(2): 138--145
Insights into subunit interactions within the insect olfactory receptor complex using FRET. [FBrf0220621]
Billeter et al., 2012, Proc. Biol. Sci. 279(1737): 2417--2425
Drosophila melanogaster females change mating behaviour and offspring production based on social context. [FBrf0218319]
Chen et al., 2012, Science 335(6069): 678--685
Visualizing long-term memory formation in two neurons of the Drosophila brain. [FBrf0217453]
Getahun et al., 2012, Front. Cell. Neurosci. 6: 54
Temporal response dynamics of Drosophila olfactory sensory neurons depends on receptor type and response polarity. [FBrf0220010]
Immonen and Ritchie, 2012, Proc. Biol. Sci. 279(1732): 1359--1365
The genomic response to courtship song stimulation in female Drosophila melanogaster. [FBrf0217554]
Kim et al., 2012, Nat. Neurosci. 15(6): 876--883
Contribution of visual and circadian neural circuits to memory for prolonged mating induced by rivals. [FBrf0219349]
Lone and Sharma, 2012, J. Biol. Rhythms 27(2): 107--116
Or47b Receptor Neurons Mediate Sociosexual Interactions in the Fruit Fly Drosophila melanogaster. [FBrf0218005]
Montagné et al., 2012, Europ. J. Neurosci. 36(5): 2588--2596
Functional characterization of a sex pheromone receptor in the pest moth Spodoptera littoralis by heterologous expression in Drosophila. [FBrf0219324]
Prieto-Godino et al., 2012, PLoS Biol. 10(10): e1001400
Embryonic origin of olfactory circuitry in Drosophila: contact and activity-mediated interactions pattern connectivity in the antennal lobe. [FBrf0219665]
Schneider et al., 2012, PLoS ONE 7(12): e52007
Neuronal basis of innate olfactory attraction to ethanol in Drosophila. [FBrf0220349]
Schneider et al., 2012, Proc. Natl. Acad. Sci. U.S.A. 109 Suppl 2: 17174--17179
Social structures depend on innate determinants and chemosensory processing in Drosophila. [FBrf0219728]
Simon et al., 2012, Genes Brain Behav. 11(2): 243--252
A simple assay to study social behavior in Drosophila: measurement of social space within a group(1). [FBrf0217332]
Steck et al., 2012, Sci. Rep. 2: 361
A high-throughput behavioral paradigm for Drosophila olfaction - The Flywalk. [FBrf0218068]
Trott et al., 2012, PLoS ONE 7(9): e46025
Song choice is modulated by female movement in Drosophila males. [FBrf0219637]
Bretman et al., 2011, Curr. Biol. 21(7): 617--622
Males use multiple, redundant cues to detect mating rivals. [FBrf0213421]
Deng et al., 2011, PLoS ONE 6(4): e18605
The Stimulatory Gα(s) Protein Is Involved in Olfactory Signal Transduction in Drosophila. [FBrf0213437]
Franco et al., 2011, Proc. Natl. Acad. Sci. U.S.A. 108(9): 3797--3802
Molecular vibration-sensing component in Drosophila melanogaster olfaction. [FBrf0213196]
Galili et al., 2011, J. Neurosci. 31(20): 7240--7248
Olfactory trace conditioning in Drosophila. [FBrf0213816]
Gomez-Marin et al., 2011, Nat. Commun. 2: 441
Active sampling and decision making in Drosophila chemotaxis. [FBrf0214803]
Hoare et al., 2011, PLoS ONE 6(8): e22996
Modeling peripheral olfactory coding in Drosophila larvae. [FBrf0214697]
Kazama et al., 2011, J. Neurosci. 31(21): 7619--7630
Cell Death Triggers Olfactory Circuit Plasticity via Glial Signaling in Drosophila. [FBrf0213815]
Lone and Sharma, 2011, J. Exp. Biol. 214(22): 3742--3750
Social synchronization of circadian locomotor activity rhythm in the fruit fly Drosophila melanogaster. [FBrf0216518]
Lone and Sharma, 2011, PLoS ONE 6(12): e28336
Circadian Consequence of Socio-Sexual Interactions in Fruit Flies Drosophila melanogaster. [FBrf0217074]
Montague et al., 2011, J. Neurosci. 31(21): 7891--7899
Similar odorants elicit different behavioral and physiological responses, some supersustained. [FBrf0213787]
Nichols et al., 2011, Chem. Senses 36(9): 781--790
Subunit contributions to insect olfactory receptor function: channel block and odorant recognition. [FBrf0216371]
Niewalda et al., 2011, PLoS ONE 6(9): e24300
A combined perceptual, physico-chemical, and imaging approach to 'odour-distances' suggests a categorizing function of the Drosophila antennal lobe. [FBrf0215586]
Pellegrino et al., 2011, Nature 478(7370): 511--514
A natural polymorphism alters odour and DEET sensitivity in an insect odorant receptor. [FBrf0216484]
Root et al., 2011, Cell 145(1): 133--144
Presynaptic facilitation by neuropeptide signaling mediates odor-driven food search. [FBrf0213351]
Sargsyan et al., 2011, Front. Cell. Neurosci. 5: 5
Phosphorylation via PKC Regulates the Function of the Drosophila Odorant Co-Receptor. [FBrf0214040]
Silbering et al., 2011, J. Neurosci. 31(38): 13357--13375
Complementary Function and Integrated Wiring of the Evolutionarily Distinct Drosophila Olfactory Subsystems. [FBrf0215822]