FB2026_02 , released June 18, 2026
Allele: Dmel\fu54
Open Close
General Information
Symbol
Dmel\fu54
Species
D. melanogaster
Name
FlyBase ID
FBal0004887
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
fuM1
Key Links
Genomic Maps

Allele class
Mutagen
Nature of the Allele
Allele class
Progenitor genotype
Cytology
Description

28bp deletion of genomic sequences 1216-1243, only the first 80 amino acids are present followed by 15 new amino acids.

28-bp deletion.

28bp deletion in the kinase domain. Class II fu allele, affects the carboxy domain of the protein by changing the open reading frame in the 5' region.

30bp deletion within putative kinase domain.

28bp deletion

Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Variant Molecular Consequences
Associated Sequence Data
DNA sequence
Protein sequence
 
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

Flies show fusion of longitudinal wing veins 3 and 4 and narrowing of the L3-L4 intervein region.

strong wing phenotype - veins L3 and L4 fused all along length; strong viability phenotype - ratio of the number of fused flies to wild type in fu/+ X fu/Y is 0.25-0.5; intermediate fecundity phenotype - ratio of eggs laid by fu/fu versus fu/+ sisters is 0.25-0.5; strong maternal effect on segmentation - percent of embryos with all segments entirely duplicated is 70-100%.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Enhanced by
Statement
Reference

fu54 has phenotype, enhanceable by Su(fu)LP

Suppressor of
Statement
Reference

fu54 is a suppressor of wing cell phenotype of Scer\GAL471B, smoΔFU.UAS

Other
Additional Comments
Genetic Interactions
Statement
Reference

When in combination with Su(fu)LP or cos3 heterozygotes individuals die as pupae. Adult escapers display wings, halteres and legs that have duplication of structures in the anterior compartment and shortening along the proximal-distal axis. Embryos derived from heterozygotes with Su(fu) mutants display a segment polarity phenotype: thoracic denticle belts are absent, last two rows of abdominal denticle belts are absent and a mirror image duplication of anterior rows of abdominal denticle belts.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments

Expression of fuScer\UAS.T:Hsap\Myr2,T:Avic\GFP-CFP under the control of either Scer\GAL4Bx-MS1096 or Scer\GAL471B rescues the reduction in the L3-L4 intervein region that is seen in fu54 flies, although the rescued wings show some wing vein abnormalities.

Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer
Comments
Comments

Class II mutation based on interaction with Su(fu)LP, suppression of embryonic and adult phenotype but display an additional phenotype.

External Crossreferences and Linkouts ( 2 )
Crossreferences
GenBank Nucleotide - A collection of sequences from several sources, including GenBank, RefSeq, TPA, and PDB.
GenBank Protein - A collection of sequences from several sources, including translations from annotated coding regions in GenBank, RefSeq and TPA, as well as records from SwissProt, PIR, PRF, and PDB.
Synonyms and Secondary IDs (2)
References (11)