FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\variR3
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General Information
Symbol
Dmel\variR3
Species
D. melanogaster
Name
FlyBase ID
FBal0212964
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Mutagen
    Nature of the Allele
    Mutagen
    Progenitor genotype
    Cytology
    Description

    Nucleotide substitution: ??T.

    Amino acid replacement: Q179term.

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

    C20790471T

    Reported nucleotide change:

    ??T

    Amino acid change:

    Q346term | vari-PB; Q179term | vari-PC; Q325term | vari-PD; Q346term | vari-PE; Q179term | vari-PF

    Reported amino acid change:

    Q179term

    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

    No significant increase in defasciculation defects in intersegmental nerve b motor axons is observed in variR3 heterozygous embryos compared to controls.

    vari327/variR3 transheterozygous embryos display increased frequency of defasciculation defects in intersegmental nerve b motor axons.

    Mutants show defects in septate junction barrier function (as tested using a dye exclusion assay).

    Mutants have strong tracheal defects.

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

    The moderate axon pathfinding defects observed in cherQ1042X heterozygous embryos are enhanced by combination with a single copy of any of variR3.

    Xenogenetic Interactions
    Statement
    Reference
    Complementation and Rescue Data
    Fails to complement
    Comments
    Images (0)
    Mutant
    Wild-type
    Stocks (0)
    Notes on Origin
    Discoverer
    External Crossreferences and Linkouts ( 0 )
    Synonyms and Secondary IDs (2)
    Reported As
    Name Synonyms
    Secondary FlyBase IDs
      References (4)