FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\Lrrkunspecified
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General Information
Symbol
Dmel\Lrrkunspecified
Species
D. melanogaster
Name
FlyBase ID
FBal0220789
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Allele class
Mutagen
    Nature of the Allele
    Allele class
    Mutagen
    Progenitor genotype
    Cytology
    Description

    FlyBase curator comment: this entry is used to capture phenotypic information when the particular allele (or allele combination) used by the author could not be determined but the context of the experiment suggests that the phenotype being described is some kind of loss of function.

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

    Lrrk mutants undergo premature follicle cell death during stages 11-13 of egg chamber development. Lrrk mutant follicle cells show markedly enlarged early endosomal, late endosomal and lysosomal structures.

    Lrrk loss of function does not exhibit lysosome clustering.

    Lrrk mutants show synaptic overgrowth at neuromuscular junctions, with a significant increase of supernumerary satellite boutons surrounding the larger, normal boutons.

    Mutant females often have a malformed abdomen, especially if nutritional status is compromised at the larval stage.

    The number of dopaminergic neurons in the protocerebral posterior medial 1 and 2 clusters and in the protocerebral posterior lateral 1 cluster and the number of neurons in the protocerebral posterior medial 3 cluster is normal in 60 day old Lrrkunspecified adults.

    Homozygotes and hemizygotes show significantly higher resistance to paraquat and to hydrogen peroxide compared to control flies.

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

    Expression of Diap1Scer\UAS.P\T.cUa under the control of Scer\GAL4CY2 partially rescues the premature follicle cell death phenotype of Lrrk mutants, but does not rescue the lysosome enlargement phenotype of Lrrk mutants.

    Removing Atg7 function in Lrrk mutants results in a significant increase in follicle cell death, but no change in the lysosome enlargement phenotype of Lrrk mutants.

    Double mutants of Atg7 and Lrrk display a mild rough-eye phenotype.

    Expression of Rab7T22N.Scer\UAS.P\T.T:Avic\GFP-YFP under the control of Scer\GAL4CY2 does not change the average lysosome size in Lrrk mutants.

    Expression of Rab7Q67L.Scer\UAS.P\T.T:Avic\GFP-YFP under the control of Scer\GAL4CY2 does not change the average lysosome size in Lrrk mutants.

    Expression of Rab9Q71L.Scer\UAS.P\T.T:Avic\GFP-YFP under the control of Scer\GAL4CY2 partially suppresses the lysosome enlargement and premature follicle cell death phenotypes observed in Lrrk mutants.

    Expression of Rab9Q71L.Scer\UAS.P\T.T:Avic\GFP-YFP under the control of Scer\GAL4RapGAP1-OK6 partially rescues the neuromuscular junction synapse overgrowth phenotype of Lrrk mutants.

    The decrease in the number of dopaminergic neurons in the protocerebral posterior medial 1 and 2 clusters and in the protocerebral posterior lateral 1 cluster that is seen in 60 day old adults expressing eIF-4EScer\UAS.cRa under the control of Scer\GAL4ple.PF is suppressed if the flies are also homozygous for Lrrkunspecified.

    Xenogenetic Interactions
    Statement
    Reference

    Expression of Hsap\LRRK2Scer\UAS.T:Ivir\HA1 under the control of Scer\GAL4CY2 partially rescues the premature follicle cell death phenotype and enlarged-lysosome phenotype of Lrrk mutants.

    Complementation and Rescue Data
    Comments

    Expression of LrrkScer\UAS.cDa under the control of Scer\GAL4CY2 partially rescues the premature follicle cell death phenotype and enlarged-lysosome phenotype of Lrrk mutants.

    Expression of LrrkT:Hsap\MYC partially rescues the premature follicle cell death phenotype of Lrrk mutants.

    Expression of LrrkG1914S.Scer\UAS under the control of Scer\GAL4CY2 partially rescues the enlarged-lysosome phenotype of Lrrk mutants.

    Expression of LrrkScer\UAS.cDa under the control of Scer\GAL4RapGAP1-OK6 partially rescues the neuromuscular junction synapse overgrowth phenotype of Lrrk mutants.

    Images (0)
    Mutant
    Wild-type
    Stocks (0)
    Notes on Origin
    Discoverer
    External Crossreferences and Linkouts ( 0 )
    Synonyms and Secondary IDs (2)
    Reported As
    Symbol Synonym
    Lrrkunspecified
    Name Synonyms
    Secondary FlyBase IDs
      References (4)