FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Hsap\APP695.UAS.Exel
Open Close
General Information
Symbol
Hsap\APP695.UAS.Exel
Species
H. sapiens
Name
FlyBase ID
FBal0256652
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
UAS-APP, UAS-APP695, UAS-APP695
Key Links
Transgenic product class
Nature of the Allele
Transgenic product class
Progenitor genotype
Carried in construct
Cytology
Description

UAS drives expression of the 695 amino acid isoform of Hsap\APP.

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 ( 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

Expression of Hsap\APP695.Scer\UAS.Exel 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
NOT Enhanced by
Suppressed by
Enhancer of
Suppressor of
Other
Statement
Reference
Phenotype Manifest In
NOT Enhanced by
Suppressed by
Enhancer of
Suppressor of
Other
Additional Comments
Genetic Interactions
Statement
Reference

The co-expression of Hsap\BACE1UAS.Exel and Hsap\APP695.UAS.Exel under the control of Scer\GAL4elav-C155 leads to significant decreases in adult climbing ability and in the number of rhabdomere per ommatidium, as compared to controls.

Xenogenetic Interactions
Statement
Reference

Co-expression of Hsap\APP695.Scer\UAS.Exel and Hsap\BACE1Scer\UAS.Exel under the control of Scer\GAL4GMR.PF results in age-progressive neurodegeneration (retinal collapse) and adult eye morphological defects including dark deposits in the eyes. Co-expression under the Scer\GAL4elav.PLu driver does not affect pupariation rate but significantly decreases the eclosion rate of adult flies, leads to age-progressive deterioration of their climbing abilities and reduces the adult survival rate and median lifespan.

Co-expression of Hsap\APP695.Scer\UAS.Exel and Hsap\BACE1Scer\UAS.Exel driven by Scer\GAL4elav.Switch.PO (with 200um RU486) results in significant hyperactivity (including nocturnal hyperactivity followed by a rapid decline, the effect is more prominent in male flies, and the effect disappears as flies age); this effect is more striking on a diet with a high carbohydrate to protein ratio (compared to low carbohydrate to protein ratio).

Co-expression of Hsap\APP695.Scer\UAS.Exel and Hsap\BACE1Scer\UAS.Exel driven by Scer\GAL4elav-C155 results in significant hypoactivity compared to controls, though total activity at night is not significantly altered (it is significantly decreased during the day).

Co-expression of Hsap\BACE1Scer\UAS.Exel and Hsap\APP695.Scer\UAS.Exel under the control of Scer\GAL4GMR.PF results in a rough eye phenotype with disorganization of the retina, atrophy of ommatidia, and presence of abnormal amyloid deposits, as compared to controls.

Co-expression of Hsap\BACE1Scer\UAS.Exel and Hsap\APP695.Scer\UAS.Exel under the control of Scer\GAL4elav.PLu leads to a significant decrease in lifespan and significant deterioration of climbing ability with age, as compared to controls.

Expression of Hsap\APP695.Scer\UAS.Exel under the control of Scer\GAL4Appl.G1a dramatically suppresses the increase in vacuolisation seen in the brains of SNF4Aγloe mutant third instar larvae.

Co-expression of Hsap\BACE1Scer\UAS.cGa suppresses the increase in vacuolisation seen when Hsap\APP695.Scer\UAS.Exel is expressed in the brains of SNF4Aγloe mutant third instar larvae under the control of Scer\GAL4Appl.G1a.

The loss of tissue due to the age-progressive neurodegeneration (vacuolar lesions) observed in the brains of adult flies expressing Hsap\APP695.Scer\UAS.Exel under the control of Scer\GAL4elav-C155 is not significantly affected by co-expression of Hsap\BACE1Scer\UAS.cGa. Flies expressing Hsap\APP695.Scer\UAS.Exel 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 (8)
Notes on Origin
Discoverer
Comments
Comments

Made by Exelixis, Inc.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (2)
Reported As
Symbol Synonym
Hsap\APP695.Scer\UAS.Exel
Hsap\APP695.UAS.Exel
Name Synonyms
Secondary FlyBase IDs
    References (16)