FB2024_03 , released June 25, 2024
Allele: Hsap\APP695-Swedish.UAS.Tag:MYC
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General Information
Symbol
Hsap\APP695-Swedish.UAS.Tag:MYC
Species
H. sapiens
Name
FlyBase ID
FBal0138484
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
UAS-APP-Swedish
Key Links
Transgenic product class
Nature of the Allele
Transgenic product class
Progenitor genotype
Carried in construct
Cytology
Description

Similar to P{UAS-APP.695-Swedish}, though tagged with Tag:MYC at the N-terminal end.

Allele components
Component
Use(s)
Encoded product / tool
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 ( 1 )
Modifiers Based on Experimental Evidence ( 1 )
Disease
Interaction
References
is ameliorated by Dhc64CJF03177
is ameliorated by sydGLC01419
Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
 
Disease-implicated variant(s)
 
This allele represents a human variant implicated in disease.
APP:p.Lys670_Met671delinsAsnLeu
Variants Synonym(s)
APP:p.Lys595_Met596delinsAsnLeu
Associated human disease model(s)
External database links
Comments concerning this variant
Phenotypic Data
Phenotypic Class
Phenotype Manifest In
Detailed Description
Statement
Reference

Ultrastructural analysis reveals neuro-degradation evidences by autophagy-related vacuole structures in the mushroom body of flies expressing Hsap\APP695-Swedish.Scer\UAST:Hsap\MYC under the control of Scer\GAL4elav-C155. The mushroom body of transgenic flies display lipid droplets of various sizes at ultrastructural level that appear in several organelles. Presynaptic axon diameters vary more in the transgenic mushroom bodies than do in wild-type. Axon terminals in the transgenic model exhibit slightly increased diameter of axon terminals compared with wild-type. Axonal volume and shape differ markedly between the transgenic model and wild-type. In wild-type, most reconstructed axons appear long and straight, with axon terminals adopting a typical shape at the end of or along the length of axons. By contrast, in flies expressing Scer\GAL4elav-C155>Hsap\APP695-Swedish.Scer\UAST:Hsap\MYC axons display an unusual shape, with comparatively short axon segments that vary considerably in area and volume. Compared with wild-type, no significant changes in mitochondrial dispersion are noted in the transgenic model. However, mitochondrial volume is significantly increased (approximately 3.3-fold) in the transgenic model compared with wild-type. Mitochondrial content per unit area of axon is similar in the transgenic model and wild-type.

Expression of Hsap\APP695-Swedish.Scer\UAST:Hsap\MYC under the control of Scer\GAL4elav-C155 results in age-progressive neurodegeneration as evidenced by the appearance of vacuolar lesions in the adult brain. The adult flies also display age-progressive learning and memory defects in an aversive olfactory memory assay.

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

The loss of tissue due to age-progressive neurodegeneration (vacuolar lesions) observed in the brains of adult flies expressing Hsap\APP695-Swedish.Scer\UAST:Hsap\MYC under the control of Scer\GAL4elav-C155 is not significantly affected by co-expression of Hsap\BACE1Scer\UAS.cGa. Flies expressing Hsap\APP695-Swedish.Scer\UAST:Hsap\MYC either alone or in combination with Hsap\BACE1Scer\UAS.cGa display strong age-progressive learning and memory defects.

Complementation and Rescue Data
Comments
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
Hsap\APP695-Swedish.Scer\UAST:Hsap\MYC
Hsap\APP695-Swedish.UAS.Tag:MYC
Name Synonyms
Secondary FlyBase IDs
    References (5)