FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Hsap\FUSUAS.Tag:HA
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General Information
Symbol
Hsap\FUSUAS.Tag:HA
Species
H. sapiens
Name
FlyBase ID
FBal0261073
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
UAS-HA-FUS, FUS-WT, FUS WT, UAS-FUS WT, UAS-FUS
Key Links
Transgenic product class
Nature of the Allele
Transgenic product class
Progenitor genotype
Carried in construct
Cytology
Description

UAS regulatory sequences drive expression of wild-type Hsap\FUS coding sequences.

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 )
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 expression of Hsap\FUSUAS.Tag:HA under the control of Scer\GAL4GMR.PU results in eye degeneration. Adulthood-only expression under the control of Scer\GAL4elav.Switch.PO and induced by RU486 results in a decrease in climbing ability.

The expression of Hsap\FUSUAS.Tag:HA under the control of Scer\GAL4GMR.PF results in external eye degeneration.

Expressing Hsap\FUSUAS.Tag:HA under the control of Scer\GAL4GMR.PF results in eye degeneration: rough eye with loss of pigmentation; retinal degradation, length reduction, and separation from the lamina at the basal membrane. There is a decrease in adult climbing activity.

Expressing Hsap\FUSUAS.Tag:HA under the control of Scer\GAL4Toll-6-D42 leads to more satellite boutons (but no change in the number of mature boutons or boutons size) in the larval neuromuscular junction.

At day one post eclosion flies expressing Hsap\FUSScer\UAS.T:Ivir\HA1 under the control of Scer\GAL4GMR.PU do not display any obvious eye defects but as they age the begin to show mild pigmentation loss.

Expression of Hsap\FUSScer\UAS.T:Ivir\HA1 in motor neurons under the control of Scer\GAL4VGlut-OK371 has no significant effect on larval motility.

Expression of Scer\GAL4VGlut-OK371>Hsap\FUSScer\UAS.T:Ivir\HA1 results in an approximately three-fold increase in the number of inter-bouton regions at third instar larval neuromuscular junctions compared with wild-type.

Scer\GAL4VGlut-OK371>Hsap\FUSScer\UAS.T:Ivir\HA1-expressing animals display an approximately 50% reduction in the number of presynaptic active zones compared with wild-type.

Compared with wild-type, third instar larvae expressing Hsap\FUSScer\UAS.T:Ivir\HA1 under the control of Scer\GAL4VGlut-OK371 display an approximately 25% reduction in evoked excitatory junction potential (EJP) amplitude. The reduction of quantal size in these animals reaches statistical significance. Compared with wild-type, a greater than two-fold increase in mEJP frequency is observed in the transgenic flies. Hsap\FUSScer\UAS.T:Ivir\HA1-expression causes a significant reduction in both rise and decay time in EJP waveform kinetics.

Expression of Hsap\FUSScer\UAS.T:Ivir\HA1 under the control of Scer\GAL4GMR.PF results in a mild eye degenerative phenotype.

Over-shooting action potentials can be evoked in neurons expressing Hsap\FUSScer\UAS.T:Ivir\HA1 under the control of Scer\GAL4VGlut-OK371 by injection of depolarising current via a recording electrode. Neurons fire repetitively in response to a sustained stimulus, with no apparent accommodation. In contrast to the evoked cell body action potentials, there is no statistically significant difference in the frequency of the spontaneous orthodromic action potentials recorded from the axons of Hsap\FUSScer\UAS.T:Ivir\HA1-expressing larvae and wild-type.

Neuronal expression of Hsap\FUSScer\UAS.T:Ivir\HA1 under the control of Scer\GAL4VGlut-OK371 appears to have little effect on the fast inward currents evoked by membrane depolarisation.

Pre-synaptic expression of Hsap\FUSScer\UAS.T:Ivir\HA1 (under the control of Scer\GAL4VGlut-OK371) does not influence the amplitude of the excitatory junction current.

The structure of presynaptic active zones is unaffected in flies expressing Hsap\FUSScer\UAS.T:Ivir\HA1 under the control of Scer\GAL4VGlut-OK371.

Expression of Hsap\FUSScer\UAS.T:Ivir\HA1 in the developing eye under the control of Scer\GAL4GMR.PF results in a very mild eye degeneration phenotype, correlated with vacuolar neurodegeneration with severe disruption of the retinal organization and thinning of the retina.

Induction of Hsap\FUSScer\UAS.T:Ivir\HA1 expression in adult neurons under the control of Scer\GAL4elav.Switch.PO results in a reduction in life span compared to controls. These flies start dying after 10 days of RU486 treatment. The overall reduction in life span is similar in males and females with all of the male flies dead in 29 days.

Induction of Hsap\FUSScer\UAS.T:Ivir\HA1 expression in adult neurons under the control of Scer\GAL4elav.Switch.PO causes an age-dependent decline in climbing ability. At day 20 approximately 41% of these flies treated with RU486 are able to climb.

External Data
Interactions
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Enhanced by
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Enhancer of
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Additional Comments
Genetic Interactions
Statement
Reference
Xenogenetic Interactions
Statement
Reference

The age-dependent eye pigmentation loss characteristic for adult flies expressing Hsap\FUSScer\UAS.T:Ivir\HA1 under the control of Scer\GAL4GMR.PU is exacerbated by co-expression of CG5445NIG.5445R and ameliorated by co-expression of CG5445Scer\UAS.cUa.

Co-expression of Art1KK101196 enhances the eye degeneration phenotype seen in flies expressing Hsap\FUSScer\UAS.T:Ivir\HA1 under the control of Scer\GAL4GMR.PF.

Co-expression of Hsap\FUSScer\UAS.T:Ivir\HA1 and Hsap\TARDBPScer\UAS.cRa in the developing eye under the control of Scer\GAL4GMR.PF leads to moderate eye degeneration.

Co-expression of Hsap\FUSScer\UAS.T:Ivir\HA1 and Hsap\TARDBPM337V.Scer\UAS in the developing eye under the control of Scer\GAL4GMR.PF leads to severe eye degeneration.

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\FUSScer\UAS.T:Ivir\HA1
Hsap\FUSUAS.Tag:HA
Name Synonyms
Secondary FlyBase IDs
    References (15)