FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\DysDp186.166.3
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General Information
Symbol
Dmel\DysDp186.166.3
Species
D. melanogaster
Name
FlyBase ID
FBal0246198
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Allele class
Nature of the Allele
Allele class
Progenitor genotype
Cytology
Description

Imprecise excision of P{EP}DysGE20705 generates a 1.2kb deletion removing the Dp186 ATG codon and most of the unique first exon of Dp186.

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 ( 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

DysDp186.166.3 mutant adults have significantly reduced benzaldehyde avoidance, compared to controls; there is no effect on axon guidance, innervation pattern or dendritic morphology of olfactory receptor neurons, compared to controls.

Voltage-clamp recordings from either the aCC or RP2 motor neurons reveals that synaptic currents are significantly increased in amplitude in DysDp186.166.3 homozygous and heterozygous mutants. Cumulative probability plots of individual synaptic currents reveals that there is a significant increase in amplitudes of the majority of the individual currents measured, compared with wild-type controls.

The frequency of action potential-dependent synaptic currents recorded in aCC/RP2 is not significantly altered in DysDp186.166.3 mutants compared to wild-type.

The presence of TTX has no effect on the ampltiude of miniature synaptic currents (mEPSCs) in aCC/RP2 neurons in DysDp186.166.3 mutants. The frequency is, however, significantly increased compared to controls, indicating a heightened probability of presynaptic vesicle release.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
NOT Enhanced by
Statement
Reference

DysDp186.166.3 has abnormal neurophysiology phenotype, non-enhanceable by gbb1/gbb[+]

NOT suppressed by
Statement
Reference

DysDp186.166.3 has abnormal neurophysiology phenotype, non-suppressible by gbb1/gbb[+]

Suppressor of
Statement
Reference
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference

In a gbb1 heterozygous mutant, with only one copy of wild-type gbb, the absence of Dp186 through a DysDp186.166.3 homozygous background is sufficient to increase synaptic currents to a level comparable to that observed in DysDp186.166.3 mutants with wild-type levels of gbb expression.

Double homozygous gbb1; DysDp186.166.3 mutants display increased synaptic currents relative to gbb1 mutants.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (2)
Reported As
Symbol Synonym
Dys<up>Dp186 166.3</up>
DysDp186.166.3
Name Synonyms
Secondary FlyBase IDs
    References (2)