FB2026_02 , released June 18, 2026
Allele: Dmel\shiTag:FLAG,Tag:CALI(4C)
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General Information
Symbol
Dmel\shiTag:FLAG,Tag:CALI(4C)
Species
D. melanogaster
Name
FlyBase ID
FBal0298853
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Nature of the Allele
Progenitor genotype
Carried in construct
Cytology
Description

Genomic fragment containing shi. A Tag:FLAG-Tag:CALI(4C) tag has been inserted into the middle domain of the shi gene. The presence of the Tag:CALI(4C) tag means that FlAsH-mediated fluorescein-assisted light inactivation can be used to inactivate the protein produced.

Allele components
Component
Use(s)
Regulatory region(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

Inactivation of the shiT:Zzzz\FLAG,T:Zzzz\4C protein using FlAsH-mediated fluorescein-assisted light inactivation in shi12.12B flies carrying shiT:Zzzz\FLAG,T:Zzzz\4C results in a fast drop in the EJP amplitude at intense (10Hz) stimulation.

Stimulation of boutons in which shi function has been inactivated (using FlAsH-mediated fluorescein-assisted light inactivation to photo-inactivate shiT:Zzzz\FLAG,T:Zzzz\4C in shi12.12B flies carrying shiT:Zzzz\FLAG,T:Zzzz\4C) results in accumulation of large membraneous profiles, some of which are seen to be connected to the presynaptic membrane. In addition, there is an almost complete lack of normal-size synaptic vesicles in the synaptic terminal.

shi1/Y ; shiT:Zzzz\FLAG,T:Zzzz\4C animals at the restrictive temperature (without photo-inactivating shiT:Zzzz\FLAG,T:Zzzz\4C) show a block in membrane uptake upon stimulation of boutons compared to controls at 22[o]C and show accumulation of invaginated pits. In shi1/Y ; shiT:Zzzz\FLAG,T:Zzzz\4C animals at the permissive temperature in which shiT:Zzzz\FLAG,T:Zzzz\4C has been photo-inactivated, large membrane inclusions are seen in the boutons after stimulation. Membrane accumulations in stimulated boutons are also seen at the restrictive temperature in shi1/Y ; shiT:Zzzz\FLAG,T:Zzzz\4C animals in which shiT:Zzzz\FLAG,T:Zzzz\4C has been photo-inactivated, but accumulation of invaginated pits is not seen in this case.

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
Complementation and Rescue Data
Comments

shiT:Zzzz\FLAG,T:Zzzz\4C fully rescues the lethality of shi12.12B mutants, and the rescued animals have no obvious behavioural, developmental or electrophysiological defects.

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
shiT:Zzzz\FLAG,T:Zzzz\4C
shiTag:FLAG,Tag:CALI(4C)
Name Synonyms
Secondary FlyBase IDs
    References (1)