FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Scer\GAL4Gr43a-GAL4
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General Information
Symbol
Scer\GAL4Gr43a-GAL4
Species
S. cerevisiae
Name
FlyBase ID
FBal0290234
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
Gr43aGAL4, Gr43a-GAL4
Allele class
Nature of the Allele
Allele class
Progenitor genotype
Associated Insertion(s)
Cytology
Description

The Gr43a coding region has been replaced by sequence encoding a GAL4 driver, resulting in GAL4 being expressed under the control of endogenous Gr43a regulatory sequences.

Allele components
Component
Use(s)
Inserted element
Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Variant Molecular Consequences
Associated Sequence Data
DNA sequence
Protein sequence
 
Expression Data
Reporter Expression
distribution deduced from reporter (Gal4 UAS)
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Information
Statement
Reference

Drives expression in sugar-sensing neurons of the larval dorsal, posterior, and ventral pharyngeal sense organs; and in sugar-sensing neurons of a small number of taste bristles in the tarsus.

ScerGAL4Gr43a-GAL4 drives expression in around four cells of the larval pharyngeal sense organ projecting to the embryonic/larval subesophageal ganglion.

ScerGAL4Gr43a-GAL4 drives strong expression in two S cells in the middle segment of the prothoracic tarsal segment 5 and weak expression in two S cells at the tip of this segment. A total of 4 neurons are labelled in the adult proventriculus, 2 extend axons to the subesophageal ganglion and 2 to muscles of the mid gut, all 4 extend dentrites in the foregut lumen.

 
Marker for
Reporter construct used in assay
Human Disease Associations
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 0 )
Disease
Evidence
References
Modifiers Based on Experimental Evidence ( 0 )
Disease
Interaction
References
Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
 
Disease-implicated variant(s)
 
Phenotypic Data
Phenotypic Class
Phenotype Manifest In
Detailed Description
Statement
Reference

Inhibition (using Hsap\KCNJ2UAS.EGFP) of Scer\GAL4Gr43a-GAL4 cells in adults does not significantly affect preference for sucrose, compared to controls.

Optogenetic activation (using Crei\ChR1::Vcar\ChR1::Vcar\ChR2ReaChR.UAS.Citrine with orange light) of the combined set of Scer\GAL4Gr28b.b.4.7 and Scer\GAL4Gr43a-GAL4 cells, but not Scer\GAL4Gr43a-GAL4 cells alone, in adults significantly increases food intake of satiated flies, compared to controls, but this is to a significantly reduced extent compared to Scer\GAL4Gr28b.b.4.7 cells alone.

Inhibition (using shits1.IVS.p10.20xUAS at 33[o]C) of a subset of Scer\GAL4Gr43a-GAL4 cells (restricted using Scer\GAL80ChAT.7.4P) in adults during training significantly reduces long-term, but not short-term, associative appetitive (sugar) olfactory memory, compared to controls.

Larvae in which neural transmission has been blocked in the Scer\GAL4Gr43a-GAL4-expressing cells in the brain show a normal preference for fructose but do not show the usual preference for glucose and sorbitol.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference
Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (3)
References (21)