FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\sbbEal17
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General Information
Symbol
Dmel\sbbEal17
Species
D. melanogaster
Name
FlyBase ID
FBal0193242
Feature type
allele
Associated gene
Dmel\sbb
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

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

    The mutation truncates the sbbB isoform but leaves the sbbA isoform unchanged.

    (Wehn and Campbell, 2006)

    Amino acid replacement: Q1621term.

    (Wehn and Campbell, 2006)
    Mutations Mapped to the Genome
    Curation Data
    Type
    Location
    Additional Notes
    References
    point_mutation
    2R:18,282,468..18,282,468 [-]
    Nucleotide change:

    C18282468T

    Amino acid change:

    Q1621term | sbb-PD; Q1631term | sbb-PG; Q1621term | sbb-PH; Q1631term | sbb-PJ

    Reported amino acid change:

    Q1621term

    Comment:

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

    (Wehn and Campbell, 2006)
    Variant Molecular Consequences
    Associated Sequence Data
    DDBJ / EMBL / GenBank
    DNA sequence
    Protein sequence
     
    UniProtKB/Swiss-Prot
      UniProtKB/TrEMBL
        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 pharate adults have normal aristae. Their legs occasionally have a severely reduced tarsal claw (7% of animals have at least one claw affected), although the pulvilli and empodium are unaffected.

        The ocellar triangle region is compressed in homozygous and sbb6/sbbEal17 flies, resulting in fusion of ocelli, loss of interocellar bristles and loss and mispositioning of the ocellar bristles.

        Legs of homozygotes sometimes fuse and have defective segmentation. The most dramatic fusions are seen between adjacent prothoracic legs.

        24% of sbbEal17/sbb6 pharate adults have defective claws.

        (Wehn and Campbell, 2006)
        External Data
        Interactions
        Show genetic interaction network for Enhancers & Suppressors
        Phenotypic Class
        Enhancer of
        Statement
        Reference

        sbb[+]/sbbEal17 is an enhancer of visible phenotype of alush/al130

        (Wehn and Campbell, 2006)
        Other
        Phenotype Manifest In
        Additional Comments
        Genetic Interactions
        Statement
        Reference

        sbbEal17/+ ; GugEal15/+ and sbbEal17/+ ; groEal13/+ double heterozygotes have defective ocellar triangles.

        (Wehn and Campbell, 2006)
        Xenogenetic Interactions
        Statement
        Reference
        Complementation and Rescue Data
        Fails to complement

        sbbEal4

        (Wehn and Campbell, 2006)
        Comments
        Images (0)
        Mutant
        Wild-type
        Stocks (0)
        Notes on Origin
        Discoverer
        External Crossreferences and Linkouts ( 0 )
        Synonyms and Secondary IDs (1)
        Reported As
        Symbol Synonym
        sbbEal17
        (Wehn and Campbell, 2006)
        Name Synonyms
        Secondary FlyBase IDs
          References (1)