FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\Csp3.UAS
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General Information
Symbol
Dmel\Csp3.UAS
Species
D. melanogaster
Name
FlyBase ID
FBal0104344
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Nature of the Allele
Progenitor genotype
Carried in construct
Cytology
Description

UASt regulatory sequences drive expression of the Csp type 3 cDNA.

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 ( 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

Expression of Csp3.Scer\UAS under the control of Scer\GAL4elav-C155 in a wild-type background has no significant effect on evoked excitatory junction potential amplitude at the neuromuscular junction in larvae. Features of spontaneous release are also normal in these larvae. Expression of Csp3.Scer\UAS under the control of Scer\GAL4elav-C155 or Scer\GAL4hs.PB results in temperature-sensitive lethality, with the animals dying during the first larval instar stage at 29oC. The lethality caused by expression of Csp3.Scer\UAS under the control of Scer\GAL4hs.PB is more severe in male than in female flies. Adult escapers carrying Csp3.Scer\UAS expressed under the control of Scer\GAL4elav-C155 have a short life span, dying within the 10 to 21 days at 25oC. The flies are extremely sluggish, show severely uncoordinated movements, and slip frequently. Body size is severely reduced and wing inflation is impaired, so that the wings appear severely crumpled. The regular ommatidial pattern is disrupted so that the eye appears rough. The eye is slightly elliptical in shape and some bristles are lost. Fusion of several ommatidial units is occasionally seen. The crumpled wing phenotype is suppressed if the flies are also homozygous for CspR1. The rough eye phenotype is partially suppressed if the flies are also carrying CspR1.

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

The mean evoked excitatory junction potential (EJP) amplitude at the neuromuscular junction is reduced by about 34% compared to wild type in larvae expressing Syx1Ahs.PW at 25oC. The EJP amplitude is normal if the larvae are also expressing Csp3.Scer\UAS under the control of Scer\GAL4elav-C155.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Partially rescues
Comments

Expression of Csp3.Scer\UAS under the control of Scer\GAL4elav-C155 has no effect on spontaneous miniature excitatory junction potentials at the neuromuscular junction of CspR1 third instar larvae, but does rescue the evoked excitatory junction potential at the neuromuscular junction.

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
Csp3.Scer\UAS
Csp3.UAS
Name Synonyms
Secondary FlyBase IDs
    References (1)