FB2025_01 , released February 20, 2025
Allele: Dmel\Sema1aUAS.cJa
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General Information
Symbol
Dmel\Sema1aUAS.cJa
Species
D. melanogaster
Name
Saccharomyces cerevisiae UAS construct a of Jeong
FlyBase ID
FBal0280755
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
UAS-Sema-1a
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 Sema1a.

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 Sema1aScer\UAS.cJa under the control of Scer\GAL4elav.PLu in embryos does not induce significant increase in axon pathfinding defects relative to controls.

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

The moderate axon pathfinding defects (defasciculation defects in intersegmental nerve b motor axons very infrequent lateral axon tract disruptions in the central nervous system) characteristic for embryos expressing pblScer\UAS.N.T:Ivir\HA1 under the control of Scer\GAL4elav.PLu are strongly exacerbated by co-expression of Sema1aScer\UAS.cJa and in addition, the embryos also display midline crossing defects.

Co-expression of Sema-1aScer\UAS.cJa and pblScer\UAS.N.T:Ivir\HA1 under the control of Scer\GAL4elav.PLu results in ISNb defects in 46.1% of hemisegments. Defects in the lateral-most Fas2-positive longitudinal connectives are seen in 21.6% of hemisegments. An average of 3.6 ectopic midline crossings in the central nervous system are seen per embryo.

plexAMB09499/+ strongly suppresses the lateral longitudinal central nervous system defects seen in embryos co-expressing Sema-1aScer\UAS.cJa and pblScer\UAS.N.T:Ivir\HA1 under the control of Scer\GAL4elav.PLu, while the ISNb defects are not suppressed.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments

Expression of Sema1aScer\UAS.cJa under the control of Scer\GAL4sca-537.4 strongly rescues the axon guidance defects characteristic for Sema1ak13702 homozygous embryos - the defects in the central nervous system are completely suppressed but the frequency of defasciculation irregularities in the intersegmental nerve b is only partially decreased and remains elevated compared to wild-type controls.

Expression of Sema-1aScer\UAS.cJa under the control of Scer\GAL4sca-537.4 rescues the central nervous system guidance defects and partially rescues the ISNb guidance defects seen in Sema-1ak13702 embryos.

Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (4)
Reported As
Symbol Synonym
Sema-1aScer\UAS.cJa
Sema1aScer\UAS.cJa
Sema1aUAS.cJa
Name Synonyms
Saccharomyces cerevisiae UAS construct a of Jeong
Secondary FlyBase IDs
    References (4)