FB2026_02 , released June 18, 2026
Allele: Dmel\bbr10
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General Information
Symbol
Dmel\bbr10
Species
D. melanogaster
Name
FlyBase ID
FBal0034205
Feature type
allele
Associated gene
bb
Associated Insertion(s)
Carried in Construct
P{rib10}
Key Links
Transgenic product class
Mutagen
Nature of the Allele
Transgenic product class
Mutagen
in vitro construct
(Merrill et al., 1992)
Progenitor genotype
Carried in construct
P{rib10}
Cytology
Description

Retains six IGS repeats plus about 2kb from the 5' end of the rDNA transcription unit.

(McKee et al., 1998)

Construct: bb fragment extends from the 3' end of 28S through the middle of the 18S gene, includes the intergenic spacer (IGS) and external transcribed sequences (ETS).

(Merrill et al., 1992)
Allele components
Component
Use(s)
Encoded product / tool
bb
Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
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

      Stimulates X-Y pairing in non-translocated genotypes. Increases fertility of Df(1)X-1; T(Y;2)B80 from 0 to 5.4-40.1% (depending on site of insertion).

      (McKee et al., 1998)
      External Data
      Interactions
      Show genetic interaction network for Enhancers & Suppressors
      Phenotypic Class
      Phenotype Manifest In
      Additional Comments
      Genetic Interactions
      Statement
      Reference
      Xenogenetic Interactions
      Statement
      Reference
      Complementation and Rescue Data
      Comments
      Images (0)
      Mutant
      Wild-type
      Stocks (0)
      Notes on Origin
      Discoverer
      Comments
      Comments

      Heterozygotes with Dp(1;Y)BSYy+ display significant stimulation of X-Y disjunction in adult testes when recombined with Df(1)X-1, in genetic and cytological assays. Effect is increased with two copies of bbr10. No mininucleolus is formed.

      (Merrill et al., 1992)
      External Crossreferences and Linkouts ( 0 )
      Synonyms and Secondary IDs (1)
      Reported As
      Symbol Synonym
      bbr10
      Name Synonyms
      Secondary FlyBase IDs
        References (2)