FB2025_05 , released December 11, 2025
Allele: Dmel\okr17-11
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General Information
Symbol
Dmel\okr17-11
Species
D. melanogaster
Name
FlyBase ID
FBal0060589
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
A17-11
Key Links
Genomic Maps

Nature of the Allele
Progenitor genotype
Cytology
Description

G to A transition at the splice acceptor site of the second intron.

Nucleotide substitution: G?A. Mutation at the splice acceptor site of the second intron.

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

G2991279A

Reported nucleotide change:

G?A

Comment:

Mutation at the splice acceptor site of the second intron of okr.

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

metaphase & condensed nuclear chromosome | conditional qualifier

Detailed Description
Statement
Reference

The survival of okr17-11/Df(2L)JS17 males carrying a source of transposase (P\TΔ2-3) and a P-element that can be mobilised (P{}whd80617) is reduced to 22% compared to controls lacking a source of transposase, indicating that okr is required for the repair of P-element induced double-strand breaks in males. The survival of okr17-11/Df(2L)JS17 females carrying a source of transposase (P\TΔ2-3) and a P-element that can be mobilised (P{}whd80617) is reduced to 68% compared to controls lacking a source of transposase.

Irradiated mutants regulate both S and M phases and undergo cell death as well as wild-type. However, pupariation is delayed, eye discs degenerate and mutant eye discs are unable to maintain organised cell proliferation. In metaphase chromosomes from larval neuroblasts broken chromosomes are seen in approximately 37% of metaphase cells 3hr after irradiation (compared to about 6% in wild-type).

Hemizygous okr17-11/Df(2L)JS17 males larvae in which P-element excision is induced do not survive, and only 10% of females survive. The frequency of reversion of the whd80k17 allele (using walter as a template) in these flies is reduced fivefold compared to control flies. Hemizygous okr17-11/Df(2L)JS17 larvae are more sensitive to mitomycin C (MMC) and cis-diamminedichloroplatinum (cisDDP) than control heterozygous larvae. Somatic recombination induced by X rays does not occur in hemizygous flies. Somatic recombination induced by MMC, cisDDP or methyl methanesulfonate is reduced compared to control flies. okrA19-10/Df(2L)JS17 and okrA19-10/okr17-11 mutants have the same methyl methanesulfonate and X ray hypersensitivity as okrA19-10/Df(2L)JS17 mutants.

Early egg development is normal but the eggs do not hatch. The larvae of mutant flies are highly sensitive to X rays and methyl methanesulfonate. The mutants exhibit a defect in induced mitotic recombination after exposure to X-rays.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference

The presense of Lig457/Y has a greater than additive effect on X-ray induced lethality of okr17-11/okr17-11 .

okr17-11/okrA19-10 mus309D2/mus309D3 double mutants show a synergistic effect on sensitivity to X rays; the sensitivity is increased 40 fold compared to wild-type in double mutants. okr17-11/okrA19-10 mus309D2/mus309D3 double mutants do not show a synergistic effect on sensitivity to methyl methanesulfonate.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (8)
Reported As
Symbol Synonym
Name Synonyms
Secondary FlyBase IDs
    References (8)