FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\Gk2RNAi.UAS
Open Close
General Information
Symbol
Dmel\Gk2RNAi.UAS
Species
D. melanogaster
Name
FlyBase ID
FBal0268041
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
dGK-IR
Key Links
Transgenic product class
Nature of the Allele
Transgenic product class
Progenitor genotype
Carried in construct
Cytology
Description

UAS regulatory sequences drive expression of an inverted repeat of Gk2 sequences.

Allele components
Component
Use(s)
Encoded product / tool
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
Additional Information
Statement
Reference
 
Marker for
Reflects expression of
Reporter construct used in assay
Human Disease Associations
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 1 )
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

Expression of Gk2dsRNA.Scer\UAS driven by Scer\GAL4αTub84B.PL results in larval lethality ('Gk2dsRNA.Scer\UAS-let') or survival to adulthood ('Gk2dsRNA.Scer\UAS-sur'), depending on the insertion line. Expression of Gk2dsRNA.Scer\UAS-let (but not Gk2dsRNA.Scer\UAS-sur) lines driven by Scer\GAL4c564 or Scer\GAL4how-24B also results in larval and pupal lethality. Scer\GAL4c564>Gk2dsRNA.Scer\UAS-let third instar larvae often show melanotic masses before lethality at the pupal stage. Expression of Gk2dsRNA.Scer\UAS driven by Scer\GAL4GMR.PS or Scer\GAL4elav-C155 does not result in any obvious external or behavioral phenotypes.

Flies expressing GkdsRNA.Scer\UAS under the control of Scer\GAL4c564 have a lifespan similar to that of wild-type controls when raised on a sucrose only food source. However, when raised on a glycerol only food source, the mutant flies have a reduced lifespan compared to wild-type flies raised under these conditions, with the lifespan being similar to that under starvation conditions. The mutant flies show an intermediate lifespan when raised on a food source containing glycerol and sucrose.

Adult males expressing GkdsRNA.Scer\UAS under the control of Scer\GAL4c564 have a small but significant decrease in survivorship on a high salt diet (3.5% and 4.0%) compared to control flies.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Suppressed by
Statement
Reference
NOT suppressed by
Statement
Reference
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference

Co-expression of GykScer\UAS.Ex does not rescue the reduced survival on a glycerol only food source of flies expressing GkdsRNA.Scer\UAS under the control of Scer\GAL4c564.

The glycerol hypersensitivity of flies expressing GkdsRNA.Scer\UAS under the control of Scer\GAL4c564 (seen as a reduction in survival on a glycerol only food source) is suppressed if the flies are heterozygous for bw19.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments

Co-expression of Gk2Scer\UAS.Ex significantly reduces the larval lethality seen with expression of Gk2dsRNA.Scer\UAS-let driven by Scer\GAL4c564.

Co-expression of GkScer\UAS.Ex rescues the reduced survival on a glycerol only food source of flies expressing GkdsRNA.Scer\UAS under the control of Scer\GAL4c564.

Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (4)
Reported As
Symbol Synonym
Gk2RNAi.UAS
Gk2dsRNA.Scer\UAS
Gk2dsRNA.UAS
GkdsRNA.Scer\UAS
Name Synonyms
Secondary FlyBase IDs
    References (3)