FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\sn2
Open Close
General Information
Symbol
Dmel\sn2
Species
D. melanogaster
Name
FlyBase ID
FBal0015771
Feature type
allele
Associated gene
Dmel\sn
Associated Insertion(s)
Carried in Construct
Key Links
Allele class
Mutagen
Nature of the Allele
Allele class
Mutagen
spontaneous
(Cant et al., 1994, Roiha et al., 1988)
Progenitor genotype
Cytology
Description

Polymorphism in the 5' untranslated region.

(Cant et al., 1994)

Either a large insertion or cytologically undetectable rearrangement, between +8.0 and +10.5 (coordinates as in FBrf0048245).

(Paterson and O'Hare, 1991)
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

      Mutation causes a severe denticle phenotype. Denticles tend to be smaller and have thinner hooks than wild-type denticles. They are also less orderly along each row and sometimes have a floppy appearance.

      (Dickinson and Thatcher, 1997)

      Bristles are bent due to disrupted actin filament bundles.

      (Cant et al., 1994)

      Weak bristle phenotype, female fertile.

      (Roiha et al., 1988)

      class 2 - female fertile with kinky macrochaetae only

      External Data
      Interactions
      Show genetic interaction network for Enhancers & Suppressors
      Phenotypic Class
      Phenotype Manifest In
      NOT suppressed by
      Statement
      Reference

      sn2 has phenotype, non-suppressible by su(Hw)2

      (Lindsley and Grell, 1968)
      Additional Comments
      Genetic Interactions
      Statement
      Reference
      Xenogenetic Interactions
      Statement
      Reference
      Complementation and Rescue Data
      Comments
      Images (0)
      Mutant
      Wild-type
      Stocks (5)
      Notes on Origin
      Discoverer

      Bridges, 1912.

      External Crossreferences and Linkouts ( 0 )
      Synonyms and Secondary IDs (1)
      Reported As
      Symbol Synonym
      sn2
      (Groen et al., 2015)
      Name Synonyms
      Secondary FlyBase IDs
        References (10)