FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\B4UAS.Tag:HA
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General Information
Symbol
Dmel\B4UAS.Tag:HA
Species
D. melanogaster
Name
FlyBase ID
FBal0198002
Feature type
allele
Associated gene
Dmel\B4
Associated Insertion(s)
Carried in Construct
P{UAS_B4.HA}
Key Links
Transgenic product class
wild_type
(Wittwer et al., 2005)
Mutagen
Nature of the Allele
Transgenic product class
wild_type
(Wittwer et al., 2005)
Mutagen
in vitro construct
(Wittwer et al., 2005)
Progenitor genotype
Carried in construct
P{UAS_B4.HA}
Cytology
Description

Expression of B4 fused at its 5' end to sequence encoding the epitope tag Tag:HA, is under the control of UASt sequences.

(Wittwer et al., 2005)
Allele components
Component
Use(s)
Regulatory region(s)
UASt
Encoded product / tool
B4
Tagged with
Tag:HA
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

      B4Scer\UAS.HA; Scer\GAL4da.G32 flies are abnormally small. The eyes of B4Scer\UAS.HA; Scer\GAL4ey.PH flies are small and have fewer ommatidia than wild-type. Clones of B4Scer\UAS.HA; Scer\GAL4GMR.PB cells in the in the eye show a cell-autonomous reduction in photoreceptor cell size and a reduction in cell number. B4Scer\UAS.HA; Scer\GAL4Bx-MS1096 flies have small wings, but, unlike in the eye, this appears to be due to reduced cell number only: clones of B4Scer\UAS.HA; Scer\GAL4Act5C.PP in the wing disc have reduced cell number but normal cell size.

      (Wittwer et al., 2005)
      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
      External Crossreferences and Linkouts ( 0 )
      Synonyms and Secondary IDs (2)
      Reported As
      Symbol Synonym
      B4Scer\UAS.T:Ivir\HA1
      B4UAS.Tag:HA
      Name Synonyms
      Secondary FlyBase IDs
        References (1)