FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\gbKG07905
Open Close
General Information
Symbol
Dmel\gbKG07905
Species
D. melanogaster
Name
FlyBase ID
FBal0148193
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Nature of the Allele
Progenitor genotype
Associated Insertion(s)
Cytology
Description

P{SUPor-P} insertion in the 5' UTR.

A P{SUPor-P} insertion in the first exon of the gb gene.

Allele components
Component
Use(s)
Mutations Mapped to the Genome
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 ( 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

larval neuromuscular junction & postsynaptic membrane

larval neuromuscular junction & postsynaptic membrane (with Df(3R)Exel6206)

Detailed Description
Statement
Reference

gbKG07905 flies show both increased susceptibility to S. aureus infection and decreased phagocytosis of S. aureus.

gbKG07905 mutant flies show faster 'bang recovery' than controls: gbKG07905 mutant flies climb the vials approximately three times faster than either wildtype or precise excision controls. This may be because the upward trajectory of gbKG07905 flies is straighter than that of control flies. Accelerated 'bang recovery' is not dependent on age or sex.

Male flies carrying gbKG07905 show frequent homosexual interactions, including singing to other males, genital licking and attempted copulation.

gbKG07905 males presented simultaneously with a wild-type passive (decapitated) male and a wild-type passive (decapitated) virgin female choose to court the male and female with equal intensity and probability (in contrast to wild-type males which always choose to court females). This phenotype is seen both when group and single-pair courtship assays are carried out.

gbKG07905 males show much higher homosexual courtship under dim red light conditions (in which the flies are virtually blind) than control males under the same conditions.

gbKG07905 males show abnormally high courtship levels to mated wild-type females.

Significantly more gbKG07905 males are trapped in an olfactory trap assay using standard food as bait compared to controls.

The neuromuscular junctions of gbKG07905 and gbKG07905/Df(3R)Exel6206 larvae show a large increase in postsynaptic glutamate receptor number. Consistently, the mean amplitude of spontaneous excitatory junction currents (sEJCs) from the L3 muscle 6 NMJ is almost doubled in gbKG07905 and gbKG07905/Df(3R)Exel6206 larvae, but neither mutant shows an increase in sEJC frequency compared with wild-type controls.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Suppressed by
Statement
Reference
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference

The level of homosexual courtship of gbKG07905 males is reduced to wild-type levels when they are partnered with desat11573-1 males instead of with wild-type males.

The high level of homosexual courtship behaviour that is seen in gbKG07905 males is partially suppressed if they are also mutant for mGluRA112b.

Xenogenetic Interactions
Statement
Reference

gbKG07905 males react normally to potential partners from other Drosophila species.

Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer
Comments
Comments

Precise excision of the insertion completely rescues the mutant courtship phenotype.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (2)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (7)