FB2026_02 , released June 18, 2026
Recombinant Construct: P{Orco-GAL4.7.087}
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General Information
Symbol
P{Orco-GAL4.7.087}
FlyBase ID
FBtp0016765
Feature type
transgenic_transposable_element
Component Allele(s)
Scer\GAL4Orco.7.087
Also Known As
Or83b-GAL4
Size
Expression Data
GAL4 reporter/driver
Associated insertion(s)
1 available
Molecular map
Description and Uses
Construct components
Component
Use(s)
Marker(s)
w+mC
Component allele Scer\GAL4Orco.7.087
Transgenic product class
Component
Use(s)
Regulatory region(s)
Orco
Orco_OR83b_7.087
Encoded product / tool
GAL4
Description

7.087kb of sequence from immediately upstream of the Orco putative translation start site regulates expression of a GAL4 driver.

(Ng et al., 2002)
Sequence Data
Sequence (FB)
Associated Sequence Data
DDBJ / EMBL / GenBank
DNA Sequence
Extent
Segments and Size
Total Size
Left end
Right end
 
Segments
Num
Orientation
Symbol
Reference
Phenotypic Data
Expression Data
Reporter Expression
distribution deduced from reporter (Gal4 UAS)
Stage
Tissue/Position (including subcellular localization)
Reference
adult stage
olfactory receptor neuron of maxillary palp | subset
(Yu et al., 2004)
antenna
(Hallem et al., 2004, Yu et al., 2004)
olfactory receptor neuron of maxillary palp
(Hallem et al., 2004)
olfactory receptor neuron of antenna | subset
(Yu et al., 2004)
olfactory receptor neuron of antenna
(Hallem et al., 2004)
maxillary palp
(Hallem et al., 2004, Yu et al., 2004)
olfactory receptor neuron | subset
(Hallem et al., 2004, Yu et al., 2004, Ng et al., 2002)
maxillary palp olfactory receptor neuron | subset
(Hallem et al., 2004)
adult antennal olfactory receptor neuron | subset
(Hallem et al., 2004)
adult antennal lobe glomerulus | subset
(Yu et al., 2004, Ng et al., 2002)
Additional Information
Statement
Reference

Expression is observed in the majority of olfactory neurons of the antennae and maxillary palps.

(Hallem et al., 2004)

Expression of ScerGAL4Or83b.7.087 is in the majority of ORNs of the maxillary palp and antenna.

(Hallem et al., 2004)

Expression is observed in about 70% of olfactory receptor neurons. These neurons project to groups of anterior, dorsal, and medial glomeruli but not ventral, lateral, and posterior glomeruli, arborizing in 29 of the 43 glomeruli in the antennal lobes.

(Ng et al., 2002)
 
Marker for
adult olfactory receptor neuron
(Hallem et al., 2004, Yu et al., 2004, Ng et al., 2002)
Reflects expression of
Orco
(Hallem et al., 2004, Yu et al., 2004, Ng et al., 2002)
Reporter construct used in assay
Progenitors and Descendants
progenitor(s)
descendant(s)
Comments
Stocks (0)
Stocks containing insertion(s) of this recombinant construct
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (7)
Reported As
Symbol Synonym
OR83B-Gal4
(Kaplan et al., 2008)
OR83b-GAL4
(Yu et al., 2004)
Or83b-GAL4
(Thran et al., 2013, Ramaekers et al., 2005, Hallem et al., 2004)
Or83b::Gal4
(Shiraiwa, 2008)
P{Or83b-GAL4.7.087}
(FlyBase, 1996-)
P{Orco-GAL4.7.087}
(FlyBase, 1996-)
P{w+;OR83b-GAL4}
(Ng et al., 2002)
Secondary FlyBase IDs
    References (11)