FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\ort5
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General Information
Symbol
Dmel\ort5
Species
D. melanogaster
Name
FlyBase ID
FBal0013288
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
ortUS6096
Key Links
Genomic Maps

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

    Nucleotides +359 to +361 in the coding region are substituted by the two nucleotides AG, resulting in a frameshift.

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

    AG

    Comment:

    The three nucleotides CCA at postion 259-361 in the CDS are replaced by the sequence AG resulting in a frame shift at amino acid 120.

    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

    Compared with wild-type, ort5 mutants show moderate reduction in the 1F1 component of frequency-tagged steady-state visually evoked potentials. 2F1 responses are almost completely eliminated in the mutant flies. The 2F1 response in ort5 mutants is only evident at high contrast, where it is approximately 20% of the wild-type, though significantly above the system noise. The fourth-order intermodulation term 2F1+2F2 is entirely abolished in the mutant, with the level of signal similar to the system noise.

    The depolarizing "on" and "off" transients that are normally seen in the electroretinograms of wild type flies are absent in ort5 mutant flies, even at saturating light intensities.

    Mutant larvae and adults show increased susceptibility to abamectin or ivermectin compared to wild type (viability is reduced). They do not show any increased sensitivity to ethanol compared to wild type. ort5/Df(3R)12 adults and ortP364/ort5 show increased susceptibility to abamectin compared to wild type (viability is reduced). Mutant adults do not show increased sensitivity to dieldrin compared to wild type.

    Rhabdomeres of young flies are reduced in size and show aberrant packing of microvilli. Rhabdomeres are nearly wild type in adults.

    External Data
    Interactions
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    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 (2)
    Notes on Origin
    Discoverer

    Hardy, Orevi and Merriam.

    External Crossreferences and Linkouts ( 0 )
    Synonyms and Secondary IDs (2)
    References (8)