FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Aberration: Dmel\In(3)pb28
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General Information
Symbol
In(3)pb28
Species
D. melanogaster
Name
FlyBase ID
FBab0005193
Feature type
chromosomal_inversion
Computed Breakpoints include

80-81;84A4

Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
X ray
Class of aberration (relative to wild type)
chromosomal_inversion
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_inversion
Breakpoints
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

bk2 hits pb

Genetic mapping information
Comments

Breakpoint(s) molecularly mapped

(Pultz et al., 1988)
Comments on Cytology

Limits of break 1 from polytene analysis (citation unavailable) Limits of break 2 from complementation mapping against pb (FBrf0055941)

Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
pb
(Cribbs et al., 1992)
Partially deleted / disrupted
Molecular Data
Completely deleted
Partially deleted
Genes NOT Deleted / Disrupted
Complementation Data
 
pb
(Randazzo et al., 1991)
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

    pb variegating chromosome. At 22oC individuals have a highly penetrant reduction of maxillary palps and a less penetrant labial palp phenotype. Variegating phenotype is enhanced at 18oC and suppressed at 29oC.

    (Pultz et al., 1988)

    variegating leg

    Stocks (0)
    Notes on Origin
    Discoverer

    Pultz.

     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     

    Shows a variegating loss of function pb phenotype.

    (Cribbs et al., 1992)

    The proximal breakpoint of In(3)pb28 is approximately 7kb upstream of the pb transcription start site.

    (Randazzo et al., 1991)
    Synonyms and Secondary IDs (7)
    Reported As
    Symbol Synonym
    In(3)MAP17
    In(3)pb28
    In(3R)MAP17
    (Randazzo et al., 1991)
    MAP17
    (Kaufman et al., 1990)
    map17
    (Cribbs et al., 1992)
    pb28
    pbmap17
    Name Synonyms
    Secondary FlyBase IDs
    • FBal0013532
    • FBab0005183
    References (6)