FB2026_02 , released June 18, 2026
Allele: Dmel\gsb-ndel
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General Information
Symbol
Dmel\gsb-ndel
Species
D. melanogaster
Name
FlyBase ID
FBal0295035
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Mutagen
Nature of the Allele
Cytology
Description

Scer\FRT-mediated recombination between the two progenitor insertions (PBac{WH}gsb-nf06670 and P{XP}gsb-nd07597) has resulted in a deletion between the 5'UTR and intron 3 of gsb-n, disrupting the entire open reading frame.

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

Scer\FRT-mediated recombination between the two progenitor insertions (PBac{WH}gsb-nf06670 and P{XP}gsb-nd07597) has resulted in a deletion between the 5'UTR and intron 3 of gsb-n.

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

Homozygous embryos show no obvious abnormalities in the SNa, ISN or ISNb motor axons.

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

Two types of SNa axon defect are seen in embryos which carry gsb-nD-19A and are also transheterozygous for a deficiency removing both gsb-n and gsb (Df(2R)GGGd13): a 'thin' SNa phenotype, where the axons appear thinner but the normal bifurcation of the SNa is retained (75%) and a 'bifurcation missing' phenotype where the SNa axons lack the normal bifurcation and instead project inappropriately into the lateral muscle field (16%).

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
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
gsb-ndel
Name Synonyms
Secondary FlyBase IDs
    References (1)