FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\stjDD196
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General Information
Symbol
Dmel\stjDD196
Species
D. melanogaster
Name
FlyBase ID
FBal0221280
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Allele class
Mutagen
    Nature of the Allele
    Allele class
    Mutagen
    Progenitor genotype
    Cytology
    Description

    stjDD196 contains a late stop codon and is predicted to lack the δ peptide.

    Amino acid replacement: Q989term.

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

    C13816923T

    Amino acid change:

    Q989term | stj-PB; Q1042term | stj-PC; Q1008term | stj-PD

    Reported amino acid change:

    Q989term

    Comment:

    Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.

    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 stjDD196 and transheterozygous stjDD196/Df(2R)Exel7128 mutants exhibit spontaneous miniature excitatory junction currents of wild-type amplitude, indicating that functional release sites are properly aligned with functional receptors, despite the absence of boutons.

    stjDD196 embryos have a small evoked response in high Ca[2+] saline (9% of wild-type).

    stjDD196 homozygous embryos exhibit a mild anatomical phenotype.

    stjDD196/stjDD196, stjDD196/Df(2R)CX1 or stjDD196/Df(2R)Exel7128 animals die as well-formed, late stage embryos.

    Adults with eyes that are homozygous for stjDD196 (due to somatic clones induced using Scer\FLP1Scer\UAS.cDa; Scer\GAL4ey.PH) have severely abnormal electro-retinograms (ERGs) in response to light: on/off transients are lacking and the sustained components of the response are abnormally slow in their onset and recovery.

    External Data
    Interactions
    Show genetic interaction network for Enhancers & Suppressors
    Phenotypic Class
    Suppressed by
    Statement
    Reference
    Phenotype Manifest In
    Suppressed by
    Statement
    Reference

    stjDD196 has bouton phenotype, suppressible by cac20-3

    Additional Comments
    Genetic Interactions
    Statement
    Reference

    cac20-3; stjDD196 double mutants are able to form boutons.

    Xenogenetic Interactions
    Statement
    Reference
    Complementation and Rescue Data
    Images (0)
    Mutant
    Wild-type
    Stocks (1)
    Notes on Origin
    Discoverer
    External Crossreferences and Linkouts ( 0 )
    Synonyms and Secondary IDs (3)
    Reported As
    Symbol Synonym
    2δ-3DD196
    stjDD196
    Name Synonyms
    Secondary FlyBase IDs
      References (2)