FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\Nrx-1d08766
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General Information
Symbol
Dmel\Nrx-1d08766
Species
D. melanogaster
Name
FlyBase ID
FBal0160123
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Allele class
Nature of the Allele
Allele class
Progenitor genotype
Associated Insertion(s)
Cytology
Description

P{XP}Nrx-1d08766 is located approximately 200bp upstream of Nrx-1.

P{XP}Nrx-1d08766 is inserted 198b upstream of the translation initation codon of the Nrx-1.

Allele components
Component
Use(s)
Mutations Mapped to the Genome
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

Nrx-1d08766 heterozygous third instar larvae do not display any neuromuscular junction (NMJ) morphological defects (the total bouton area, number of boutons as well as number of branch points per NMJ is comparable to wild-type) but the active zone density at the NMJ is significantly increased relative to controls. Larval locomotor speed is not affected compared controls and the average cell body size of cells in the ventral nerve cord is also not significantly different.

Associative learning is reduced in Nrx-1d08766 mutants (testing for their ability to associate odors with a fructose reward in an individual-animal assay).

External Data
Interactions
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Phenotypic Class
Phenotype Manifest In
Suppressor of
Statement
Reference
Other
Additional Comments
Genetic Interactions
Statement
Reference
Xenogenetic Interactions
Statement
Reference

The reduced total neuromuscular junction (NMJ) bouton area in third instar larvae expressing Hsap\DISC1Scer\UAS.T:Ivir\HA1 under the control of Scer\GAL4αTub84B.PL is rescued by combination with a single copy of Nrx-1d08766 but this also results in significant decrease in the number of branch points per NMJ, which is not observed in either of the single mutants alone. Number of boutons per NMJ remains comparable to wild-type.

Similarly, Scer\GAL4αTub84B.PL>Hsap\DISC1Scer\UAS.T:Ivir\HA1;Nrx-1d08766/+ larvae show significant decrease in both average and peak locomotor speed, a phenotype not seen in either of the single mutants. Cell body size of neurons in the ventral nerve cord is not affected and comparable to wild-type.

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 (3)
Reported As
Symbol Synonym
Nrx-1d08766
dnrx1d08766
dnrxd08766
Name Synonyms
Secondary FlyBase IDs
    References (6)