FB2024_03 , released June 25, 2024
Allele: Scer\GAL4ppk23.2.695
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General Information
Symbol
Scer\GAL4ppk23.2.695
Species
S. cerevisiae
Name
FlyBase ID
FBal0277044
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
ppk23-Gal4
Transgenic product class
Nature of the Allele
Transgenic product class
Progenitor genotype
Carried in construct
Cytology
Description

A 2.695kb upstream fragment of ppk23 regulates expression of a GAL4 driver.

Allele components
Component
Use(s)
Regulatory region(s)
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 calcium-sensing neuron of labellar S-type taste bristles, and in a subset of leg taste bristle chemosensory neurons that project into the adult ventral nerve cord; and in gustatory receptor neurons of the terminal organ in larvae.

Scer\GAL4ppk23.2.695 drives expression in 10 neurons that innervate the terminal organ, and in one internal sensory neuron located along the larval pharynx.

ScerGAL4ppk23.2.695 drives expression in gustatory receptor neurons in the proboscis and in the legs. These neurons labeled with ScerGAL4ppk23.2.695 do not overlap with expression of ScerGAL4ppk28.PC, which labels the water-sensing neurons, ScerGAL4Gr64f.9.7 which labels the sugar-responsive neurons,or with candidate pheromone receptor ScerGAL4Gr32a.3.776. A few positive ScerGAL4ppk23.2.695 neurons in the proboscis co-express AvicGFPGr66a.3x.IRES.2x which labels bitter-responsive neurons, but there is no co-expression in the leg sensory neurons. Expression of ScerGAL4ppk23.2.695 in the legs marks more than one cell per bristle and it overlaps with that of fruP1.LexA.

There is sexual dimorphism in the leg gustatory receptor neurons labeled by ScerGAL4ppk23.2.695 : twice as many cells are labeled in males compared to females and the neuronal projections of males in the prothoracic ganglion cross the midline whereas female ones do not.

 
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

Inactivation of a subset of Scer\GAL4ppk23.2.695 cells (using Ctet\tetXTNT-LC.FRT.stop.UAS and Scer\FLP1335) in males has little effect on the frequency of successful matings, copulation duration or copulation latency, compared to controls.

Thermogenetic activation (using TrpA1UAS.(B).cKa at 30[o]C) of a subset of Scer\GAL4ppk23.2.695 cells (activation restricted using Ecol\lexAVGlut-MI04979-TlexA:QFAD.2 and Scer\GAL80ts.lexAop.cTa) in adult males significantly decreases wing extensions towards females, compared to controls.

When males flies in which the Scer\GAL4ppk23.2.695-expressing neurons have been silenced are exposed to other males that have been engineered to produce female pheromones (by expressing traScer\UAS.cFa under the control of Scer\GAL4OK72) they do not show the increase in starvation resistance seen when they are exposed to wild type males.

Activation of Scer\GAL4ppk23.2.695-expressing neurons in wild type males results in reductions in starvation resistance, triacylglyceride (TAG) amount and lifespan compared with wild type males. Activity levels, respiration rate and feeding are unaffected.

Inhibition (using Ctet\TeTxLCTNT.UAS) of Scer\GAL4ppk23.2.695 cells significantly reduces the preference of larvae for larval-treated substrate, compared to controls; attraction to the secreted larval fatty acids (Z)-5-tetradecanoic acid and (Z)-7-tetradecanoic acid is significantly reduced, compared to controls.

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 (1)
Reported As
Symbol Synonym
Scer\GAL4ppk23.2.695
Name Synonyms
Secondary FlyBase IDs
    References (21)