FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\Fsnull
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General Information
Symbol
Dmel\Fsnull
Species
D. melanogaster
Name
FlyBase ID
FBal0369645
Feature type
allele
Associated gene
Dmel\Fs
Associated Insertion(s)
TI{TI}Fsnull
Carried in Construct
Key Links
Allele class
Mutagen
Nature of the Allele
Allele class
Mutagen
CRISPR/Cas9
(Herrera et al., 2021)
gene targeting by homologous recombination
(Herrera et al., 2021)
Progenitor genotype
Associated Insertion(s)
TI{TI}Fsnull
Cytology
Description

Sequence spanning Fs coding exons 1 through 4 has been deleted. Sequence encoding a splice acceptor site, stop codons in all three frames and a Avic\GFP3xP3.cUa marker has been has been inserted in place of the deleted sequence.

(Herrera et al., 2021)
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

      Fsnull homozygous adult males show a progressive decrease in hub cell number in the testes.

      (Herrera et al., 2021)
      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 (1)
      Reported As
      Symbol Synonym
      Fsnull
      (Herrera et al., 2021)
      Name Synonyms
      Secondary FlyBase IDs
        References (1)