FB2024_03 , released June 25, 2024
Allele: Dmel\Gr5aΔEP19
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General Information
Symbol
Dmel\Gr5aΔEP19
Species
D. melanogaster
Name
FlyBase ID
FBal0127248
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Allele class
Nature of the Allele
Allele class
Progenitor genotype
Caused by aberration
Cytology
Description

Proximal breakpoint lies within the second exon of Gr5a, 3' to the codon specifying Ala 62. The translation initiation codon of Gr5a is removed.

Imprecise excision of the progenitor insertion, resulting in a 1.0kb deletion of genomic sequences in the direction of Gr5a (removing the promoter, 5' leader sequences and a 253bp sequence removing exon 1, intron 1 and part of exon 2). The 3' end of the progenitor insertion has been precisely excised, leaving the Tre1 gene structure intact.

Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Comment:

1000 bp deletion associated with the precise excision of P{EP}Tre1EP496 (GB:AB066612).

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

Stimulation of long labellar taste bristles in mutant flies with trehalose induces significantly fewer biphasic spikes than seen in wild-type.

Stimulation of long labellar taste bristles in TreΔEP19 mutant flies with trehalose induces significantly fewer biphasic spikes than seen in wild-type.

Impulse discharges from I-type hairs in response to trehalose stimulation are diminished in Gr5aΔEP19 mutants compared to wild-type.

Electrophysiological response to sugars in individual labellar taste hairs of the large and medium class shows normal response to sucrose but drastically reduced response to trehalose, in comparison with parental P{EP}Tre1EP496 strain. In a two choice preference test with sucrose and trehalose, mutants show dramatically reduced response to trehalose, when compared to the parental P{EP}Tre1EP496 strain.

Flies show reduced sensitivity to trehalose in a feeding preference test.

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
Fails to complement
Rescued by
Not rescued by
Comments
Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 1 )
Crossreferences
GenBank Nucleotide - A collection of sequences from several sources, including GenBank, RefSeq, TPA, and PDB.
Synonyms and Secondary IDs (4)
Reported As
Symbol Synonym
Gr5aΔEP19
TreΔEP19
Name Synonyms
Secondary FlyBase IDs
    References (5)