FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\repo64
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General Information
Symbol
Dmel\repo64
Species
D. melanogaster
Name
FlyBase ID
FBal0039835
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
rk264
Key Links
Genomic Maps

Nature of the Allele
Progenitor genotype
Cytology
Description

Amino acid replacement: Q52term.

The premature stop codon is before the homeodomain.

Nucleotide substitution: C301T.

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

C18236650T

Reported nucleotide change:

C301T

Amino acid change:

Q52term | repo-PA

Reported amino acid change:

Q52term

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

repo64/+ mutants exhibit significantly impaired long term memory performance 24 hours after spaced training in an aversive olfactory association paradigm, as compared to controls; but do not show significantly decreased anesthesia-resistant memory performance 24 hours after massed training in an aversive olfactory association paradigm, as compared to controls.

The number of lateral glia is reduced in repo64 mutants, while those remaining are disorganised. Most peripheral glia are either missing or displaced and longitudinal glia are displaced toward the lateral edges of the ventral nerve cord.

In stage 16 repo64 homozygous embryos, the numbers of lateral glia are reduced and those that remain are disorganised, most peripheral glia are either missing or displaced and longitudinal glia are displaced towards the lateral edges of the ventral nerve cord.

Gliogenesis and axonogenesis are normal in mutant embryos up to stage 16. At stage 16 longitudinal glial cells are spatially disorganized and reduced in number. By stage 16, mutant embryos have slightly disorganized longitudinal axon fascicles.

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

Embryos expressing gcmScer\UAS.cHa under the control of Scer\GAL4sca-T3 show a dramatic restoration of elav-positive cells and neuronal development if they are also mutant for repo64.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Partially rescued by
Comments

repoScer\UAS.cLa; Scer\GAL4repo.PL partially rescues the loss and disorganisation of glia seen in repo64 homozygous stage 16 embryos. Rescue is most apparent for longitudinal and peripheral glia.

Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (3)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (5)