FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\InR339
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General Information
Symbol
Dmel\InR339
Species
D. melanogaster
Name
FlyBase ID
FBal0122080
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
dinr339
Key Links
Genomic Maps

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

    Amino acid replacement: G1551E.

    Mutations Mapped to the Genome
    Curation Data
    Type
    Location
    Additional Notes
    References
    Nucleotide change:

    G21575219A

    Amino acid change:

    G1536D | InR-PA; G1536D | InR-PB; G1536D | InR-PC; G1536D | InR-PD

    Reported amino acid change:

    G1491D

    Comment:

    Mutation is in the cytoplasmic region.

    Comment:

    Site of nucleic acid difference in mutant inferred by FlyBase based on reported amino acid change.

    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 ( 1 )
    Disease
    Interaction
    References
    ameliorates  germ cell cancer
    Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
     
    Disease-implicated variant(s)
     
    Phenotypic Data
    Phenotypic Class
    Phenotype Manifest In
    Detailed Description
    Statement
    Reference

    InRE19/InR339 transheterozygotes show a significantly decreased number of escort cells in the germarium, as compared to controls.

    InR339 mutant germline stem cells are lost more quickly than controls.

    InR339 mutant female germline stem cells divide three times more slowly than wild type.

    InR339/InRE19 mutant flies raised at 18[o]C contain fewer germline stem cells and cap cells than the respective controls. The number of GSCs and cap cells reduces further one week after being shifted to 29[o]C at eclosion.

    Photoreceptor cell rhabdomeres are on average 30% the size of wild type in homozygous clones in the eye.

    The average number of germline stem cells (GSCs) in the testis of InRE19/InR339 males within 24 hours of eclosion is similar to that seen in wild-type males at this time. However, the mutant males show an increased rate of reduction in GSC number with age compared to wild-type males, such that 14 days after eclosion, while the wild-type males maintain 90% of the GSC numbers of newly eclosed males, the mutant males maintain only 70% of the average GSC number of newly eclosed males.

    InRE19/InR339 males that are within 24 hours of eclosion have a reduced number of stage S2b spermatocyte cysts in the testis compared to wild-type males. By 14 days after eclosion, stage S2b spermatocyte cysts are no longer detected in InRE19/InR339 males.

    The average diameter of stage S6 InRE19/InR339 spermatocytes is smaller than that of control spermatocytes at this stage.

    Homozygous female germline cysts have normal morphology and cell number, but 83% of these cysts are developmentally delayed, showing a markedly decreased size compared to neighbouring wild-type egg chambers. Mutant germline stem cells (GSCs) have a reduced division rate compared to wild-type GSCs. Egg chambers in mosaic ovarioles in which the entire germline is homozygous fail to progress through vitellogenesis and degenerate.

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

    InR339 has rhabdomere | somatic clone phenotype, enhanceable by lqfRΔ117

    Suppressed by
    NOT suppressed by
    Enhancer of
    Statement
    Reference
    Additional Comments
    Genetic Interactions
    Statement
    Reference

    The decreased number of escort cells observed in the germarium of InRE19/InR339 transheterozygotes is suppressed by additional foxo21/foxo25 transheterozygosity.

    Expression of NScer\UAS.cMa under the control of Scer\GAL4bab1-Gal4 (limited to the adult stages using Scer\GAL80ts.αTub84B) does not suppress the germline stem cell and cap cell loss seen in InR339/InRE19.

    Expression of Dl::NΔECN.Scer\UAS under the control of Scer\GAL4bab1-Gal4 (limited to the adult stages using Scer\GAL80ts.αTub84B) significantly suppresses the germline stem cell and cap cell loss seen in InR339/InRE19 mutant week old females.

    Expression of NICN.Scer\UAS under the control of Scer\GAL4bab1-Gal4 (limited to the adult stages using Scer\GAL80ts.αTub84B) significantly suppresses the germline stem cell and cap cell loss seen in InR339/InRE19 mutant week old females.

    Expression of fngGD2763 under the control of Scer\GAL4bab1-Gal4 (limited to the adult stages using Scer\GAL80ts.αTub84B) suppresses the germline stem cell and cap cell loss seen in InR339/InRE19 mutant week old females.

    Photoreceptor cell rhabdomeres are on average 23% the size of wild type in InR339 lqfRΔ117 double mutant clones in the eye (significantly smaller than in either single mutant).

    Xenogenetic Interactions
    Statement
    Reference
    Complementation and Rescue Data
    Comments
    Images (0)
    Mutant
    Wild-type
    Stocks (1)
    Notes on Origin
    Discoverer
    Comments
    Comments

    Alleles of InR form an allelic series based on phenotypic strength: InR339 > InR31 > InR211 > InRE19 > InR353.

    External Crossreferences and Linkouts ( 0 )
    Synonyms and Secondary IDs (4)
    References (12)