FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\bunA-Q578X
Open Close
General Information
Symbol
Dmel\bunA-Q578X
Species
D. melanogaster
Name
FlyBase ID
FBal0221056
Feature type
allele
Associated gene
Dmel\bun
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Allele class
Mutagen
Nature of the Allele
Allele class
Mutagen
ethyl methanesulfonate
(Gluderer et al., 2008)
Progenitor genotype
Cytology
Description

Amino acid replacement: Q578term.

(Gluderer et al., 2008)
Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
point_mutation
2L:12,537,923..12,537,923 [-]
Nucleotide change:

C12537923T

Amino acid change:

Q578term | bun-PA; Q469term | bun-PF; Q469term | bun-PG; Q469term | bun-PP

Reported amino acid change:

Q578term

Comment:

Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change. Mutations mapped with respect to isoform -PA.

(Gluderer et al., 2008)
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

      Mosaic flies with eye and head capsules largely homozygous for bunA-Q578X (generated using the eyFLP/FRT technique) have small heads ("pinhead" phenotype).

      Homozygous clones in the wing disc always contain fewer cells than their corresponding wild-type sister clones. The homozygous clones consistently covers a smaller area than the wild-type sister clone, and this reduction in clone area is slightly more pronounced than the reduction in cell number.

      bunA-Q578X/bunGE12327 flies show ommatidial differentiation defects, especially around the equator, including under-rotated ommatidia, ommatidial fusions and cell fate transformations (with a low frequency, the R4 photoreceptor cell adopts the fate of the R3 cells and a few R7 cells transform to R1/R6 cells.

      (Gluderer et al., 2008)
      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
      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
      A-Q578X
      (Gluderer et al., 2010)
      bunA-Q578X
      (Gluderer et al., 2008, Wu et al., 2008)
      Name Synonyms
      Secondary FlyBase IDs
        References (3)