FB2026_03 , released September 17, 2026
Recombinant Construct: P{Gr2B1-GAL4.2.240}
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General Information
Symbol
P{Gr2B1-GAL4.2.240}
FlyBase ID
FBtp0014665
Feature type
transgenic_transposable_element
Component Allele(s)
Scer\GAL4Gr2a.2.240
Also Known As
Gr2a-GAL4
Size
Expression Data
GAL4 reporter/driver
Associated insertion(s)
1 available
Molecular map
Description and Uses
Construct components
Component allele Scer\GAL4Gr2a.2.240
Transgenic product class
Component
Use(s)
Regulatory region(s)
Gr2a
Gr2a_Gr2B1_CRM
Encoded product / tool
GAL4
Description

2.240kb of Gr2a promoter sequences regulate expression of a GAL4 driver.

(Scott et al., 2001)
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
larval stage
terminal organ
(Scott et al., 2001)
dorsal organ
(Scott et al., 2001)
embryonic/larval gut | restricted
(Scott et al., 2001)
Kolbchen
(Scott et al., 2001)
embryonic/larval antennal lobe
(Scott et al., 2001)
adult stage
adult labral sense organ | restricted
(Scott et al., 2001)
adult pharyngeal nerve | restricted
(Wang et al., 2004)
gustatory receptor neuron of adult mouth
(Wang et al., 2004)
gnathal ganglion
(Wang et al., 2004)
Additional Information
Statement
Reference

ScerGAL4Gr2a.2.240 is expressed in only a single neuron in the adult labral sense organ. It is expressed in two neurons innervating the larval dorsal organ, one neuron innervating the terminal organ and a single bilaterally symmetric neuron innervating the ventral pit in each thoracic hemisegment.

(Scott et al., 2001)
 
Marker for
Reflects expression of
Gr2a
(Wang et al., 2004, Scott et al., 2001)
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 (4)
Reported As
Symbol Synonym
Gr2B1-Gal4
(Scott et al., 2001)
Gr2a
(Hong et al., 2008)
Gr2a-GAL4
(Miyazaki and Ito, 2010, Wang et al., 2004)
P{Gr2B1-GAL4.2.240}
(FlyBase, 1996-)
Secondary FlyBase IDs
    References (8)