FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Aberration: Dmel\Df(1)278.4B1
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General Information
Symbol
Df(1)278.4B1
Species
D. melanogaster
Name
FlyBase ID
FBab0000235
Feature type
chromosomal_deletion
Also Known As
Df(1)278.4B.1a, Df(1)278-4B-1a
Computed Breakpoints include

2E2-2F1;3A5-3B4

Features within 2E2--3B4
Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
Class of aberration (relative to wild type)
chromosomal_deletion
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_deletion
Breakpoints
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

l(1)2Ea << bk1 << pcx << trol << bk2 << eo

Genetic mapping information
Comments

Breakpoint(s) molecularly mapped

(Haenlin et al., 1985)

Breakpoint mapped to the DNA between +5.5 (Sal1 site) and +9.0 (EcoR1 site) by Haenlin, Steller, Pirrotta and Mohier, 1985, Cell 40: 827-37.

Comments on Cytology

Left limit of break 1 from polytene analysis (FBrf0040957) Right limit of break 1 from inclusion of crn (FBrf0040957) Limits of break 2 from polytene analysis (FBrf0040957)

Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Genes NOT Deleted / Disrupted
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

    Df(1)278.4B1/Df(1)pn38 viable Df(1)278.4B1/Df(1)pn38 pcx phenotype Df(1)278.4B1/Df(1)pn38 sterile, produce inviable embryos exhibit a strong neurogenic phenotype.

    (LaBonne et al., 1989)
    NOT in combination with other aberrations
    Stocks (0)
    Notes on Origin
    Discoverer

    Wu.

     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     
    Synonyms and Secondary IDs (5)
    Reported As
    Symbol Synonym
    Df(1)278
    (Haenlin et al., 1985)
    Df(1)278-4B-1a
    (LaBonne et al., 1989, Perrimon et al., 1985)
    Df(1)278.4B
    (Forlani et al., 1993)
    Df(1)278.4B.1a
    (Perrimon et al., 1985, Perrimon et al., 1984)
    Df(1)278.4B1
    Name Synonyms
    Secondary FlyBase IDs
      References (7)