FB2024_03 , released June 25, 2024
Allele: Dmel\scbVol-1
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General Information
Symbol
Dmel\scbVol-1
Species
D. melanogaster
Name
FlyBase ID
FBal0083757
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
vol1
Key Links
Allele class
Nature of the Allele
Allele class
Progenitor genotype
Associated Insertion(s)
Cytology
Description

Insertion within the first intron of scb long RNA and within the 5' flanking region of scb short mRNA.

Allele components
Component
Use(s)
Inserted element
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

Mutant animals show reduced 1 hour memory and normal age-related memory impairment.

Single-trial short program training in an olfactory learning assay shows that scbVol-1 flies perform poorly immediately after conditioning. The mutants are sensitive to two-trial, spaced conditioning over two-trial, massed conditioning, behaving in this respect qualitatively like control flies. The phenotype after short program training is completely recessive.

At physiological levels of external Ca2+ mutant nmjs show normal transmission. At reduced external Ca2+ levels EJC amplitudes are increased over those of controls (least pronounced for scbVol-2, but highly significant for scbVol-1, scbVol-3 and scbVol-4. scbVol-1, scbVol-3 and scbVol-4 show reduced slope of the logarithmic relationship between EJC amplitude and external Ca2+ concentration, indicating reduced Ca2+ dependence of transmission. Mutants show significant defects in two forms of short-term facilitation, paired pulse and frequency dependent short term facilitation. Mutants show impaired augmentation of transmission amplitude upon prolonged stimulation at intermediate frequencies.

Mutations produce a memory deficit as shown in the odour avoidance test. Neither sensorimotor nor gross anatomical defects can account for the memory deficit.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Enhancer of
Statement
Reference

scb[+]/scbVol-1 is an enhancer of visible | dominant phenotype of sogEP7

scb[+]/scbVol-1 is an enhancer of visible | dominant phenotype of sogEP11

Phenotype Manifest In
Enhancer of
Statement
Reference

scb[+]/scbVol-1 is an enhancer of wing vein phenotype of sogEP7

scb[+]/scbVol-1 is an enhancer of wing vein phenotype of sogEP11

Additional Comments
Genetic Interactions
Statement
Reference
Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
Comments
Comments

Mutation disrupts the expression of scb long form.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (5)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (6)