FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Aberration: Dmel\Df(1)JB254
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General Information
Symbol
Df(1)JB254
Species
D. melanogaster
Name
FlyBase ID
FBab0027954
Feature type
chromosomal_deletion
Also Known As
cdk7del
Computed Breakpoints include
Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
dhdP8
(Larochelle et al., 1998)
Mutagen
Class of aberration (relative to wild type)
chromosomal_deletion
Class of aberration (relative to progenitor)
Breakpoints
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments
Comments on Cytology
Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
Partially deleted / disrupted
Molecular Data
Completely deleted
Partially deleted
Genes NOT Deleted / Disrupted
Complementation Data
 
Molecular Data
 
Genes Duplicated
Complementation Data
Completely duplicated
Partially duplicated
Molecular Data
Completely duplicated
Partially duplicated
Genes NOT Duplicated
Complementation Data
 
Molecular Data
 
Affected Genes Inferred by Location (0)
    If no genes are listed here, it may be because the affected region is very large. The JBrowse insert above may show an error for the same reason, and other FlyBase tools such as CytoSearch may also fail for large regions. You can contact FlyBase for more help.
    In these cases, there will be no "Export to Hitlist" button to the left.
    Phenotypic Data
    In combination with other aberrations
    NOT in combination with other aberrations

    Animals carrying P{snf+,dhd+} in a homozygous Df(1)JB254 background often remain in a larval state longer than wild-type siblings. Up to 50% of the mutant larvae form a puparium and the remainder die as larvae. The imaginal discs fail to proliferate in the mutant larvae, whereas the polyploid tissue appears normal.

    (Larochelle et al., 1998)
    Stocks (2)
    Notes on Origin
    Discoverer

    P-element activity.

    (Larochelle et al., 1998)
     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     
    Synonyms and Secondary IDs (4)
    Reported As
    Symbol Synonym
    Cdk7Df4557
    (Baumgardt et al., 2014)
    Cdk7null
    (Chen et al., 2003)
    Df(1)JB254
    (Cho et al., 2020, Chlamydas et al., 2016, Matsuno et al., 2007, Ito et al., 2004)
    cdk7del
    (Deichsel et al., 2024, Deichsel et al., 2024)
    Name Synonyms
    Secondary FlyBase IDs
      References (11)