FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\Nf1E1
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General Information
Symbol
Dmel\Nf1E1
Species
D. melanogaster
Name
FlyBase ID
FBal0197114
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
dNF1E1
Key Links
Genomic Maps

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

Amino acid replacement: Q1062term.

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

C25987160T

Amino acid change:

Q1062term | Nf1-PB; Q1062term | Nf1-PC; Q1062term | Nf1-PD; Q1062term | Nf1-PE; Q1062term | Nf1-PF

Reported amino acid change:

Q1062term

Comment:

Site of nucleotide substitution 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 ( 1 )
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

The timing of pupariation is normal in homozygous and Nf1E1/Nf1E2 larvae, but they show an approximately 25% weight reduction compared to controls at the end of the larval stage.

Nf1E1/Nf1E2 do not show altered longevity compared to controls.

Bouton number per muscle area is significantly increased compared to wild type at the neuromuscular junction in Nf1E1/Nf1E2 larvae.

The amplitude of the evoked junctional potential (EJP) at the NMJ is significantly increased in Nf1E1/Nf1E2 larvae compared to wild type.

Nf1E2/Nf1E1 pupae are smaller than wild type. Adult flies exhibit associative olfactory learning defects.

Homozygous pupae are 15-20% smaller than wild-type controls. Heterozygous pupae also show a small but highly significant reduction in length compared to controls.

The surface area of the wing in homozygotes is only 64% that of control flies.

Wing imaginal discs are reduced in size and made up of smaller cells in Nf1E1 animals compared to controls. There is no obvious difference in cell cycle phasing in these cells (as assayed by FACS analysis) compared to controls.

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

Expression of AlkEC.Scer\UAS.T:Hsap\MYC under the control of either the Scer\GAL4elav-C155, Scer\GAL4Ras64B.PW or Scer\GAL4Alk.38 driver, and restricted to the adult stages using Scer\GAL80ts.αTub84B, rescues the olfactory learning defects seen in Nf1E2/Nf1E1 mutants.

Expression of AlkEC.Scer\UAS.T:Hsap\MYC under the control of Scer\GAL4c747, and restricted to the adult stages using Scer\GAL80ts.αTub84B, fails to rescue the olfactory learning defects seen in Nf1E2/Nf1E1 mutants.

Expression of AlkGD42 under the control of either the Scer\GAL4elav-C155, Scer\GAL4Ras64B.PW or Scer\GAL4Alk.38 driver, and restricted to the adult stages using Scer\GAL80ts.αTub84B, rescues the olfactory learning defects seen in Nf1E2/Nf1E1 mutants.

Expression of AlkGD42 under the control of Scer\GAL4c747, and restricted to the adult stages using Scer\GAL80ts.αTub84B, fails to rescue the olfactory learning defects seen in Nf1E2/Nf1E1 mutants.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Fails to complement
Partially rescued by
Comments

Expression of Nf1Scer\UAS.cWa under the control of Scer\GAL4Alk.38 rescues the small pupae phenotype seen in Nf1E2/Nf1E1 mutants.

Expression of Nf1Scer\UAS.cWa under the control of the mushroom body drivers Scer\GAL4c747, Scer\GAL4Mef2.247 or Scer\GAL4ey-OK107, and restricted to the adult stages using Scer\GAL80ts.αTub84B, fails to rescue the olfactory learning defects seen in Nf1E2/Nf1E1 mutants.

Expression of Nf1Scer\UAS.cWa under the control of the mushroom body drivers Scer\GAL4elav-C155, Scer\GAL4Ras64B.PW or Scer\GAL4Alk.38 and restricted to the adult stages using Scer\GAL80ts.αTub84B, fails to rescue the olfactory learning defects seen in Nf1E2/Nf1E1 mutants.

Expression of Nf1[Scer\UAS.cWa] under the control of the pan-neuronal driver Scer\GAL4elav-C155, as well as Scer\GAL80Mef2.PT to prevent expression in the mushroom bodies, rescues the olfactory learning defects seen in Nf1E2/Nf1E1 animals. Significant rescue is also seen with the Scer\GAL4Ras64B.PW and Scer\GAL4Alk.38 drivers.

Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (5)
References (9)