FB2026_02 , released June 18, 2026
Allele: Dmel\osk4
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General Information
Symbol
Dmel\osk4
Species
D. melanogaster
Name
FlyBase ID
FBal0013306
Feature type
allele
Associated gene
Dmel\osk
Associated Insertion(s)
Carried in Construct
Also Known As
osk123
Key Links
Allele class
Mutagen
Nature of the Allele
Allele class
Mutagen
ethyl methanesulfonate
(Tearle and Nusslein-Volhard, 1987)
Progenitor genotype
Cytology
Description
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

      Maternal effect phenotype when in trans with a deficiency for osk.

      (Ephrussi et al., 1991)

      Absence of posterior pole plasm, polar granules and pole cells.

      (Lehmann and Nusslein-Volhard, 1991)
      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

      Strong allele of osk. The abdominal phenotype of osk can be rescued by cytoplasmic transplantation of wild type posterior pole plasm into the abdominal regions of mutant embryos.

      (Lehmann and Nusslein-Volhard, 1991)
      External Crossreferences and Linkouts ( 0 )
      Synonyms and Secondary IDs (2)
      Reported As
      Symbol Synonym
      osk123
      (Ephrussi et al., 1991, Lehmann and Nusslein-Volhard, 1991, Tearle and Nusslein-Volhard, 1987)
      osk4
      Name Synonyms
      Secondary FlyBase IDs
        References (3)