FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\sbbA.GMR.Tag:MYC
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General Information
Symbol
Dmel\sbbA.GMR.Tag:MYC
Species
D. melanogaster
Name
FlyBase ID
FBal0117378
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Transgenic product class
Nature of the Allele
Transgenic product class
Progenitor genotype
Carried in construct
Cytology
Description

GMR regulatory sequences drive expression of the sbb A isoform, tagged at the 5' end with 8 tandem copies of Tag:MYC.

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

photoreceptor cell R1 & axon | somatic clone, with sbb1

photoreceptor cell R1 & axon | somatic clone, with sbb2

photoreceptor cell R2 & axon | somatic clone, with sbb1

photoreceptor cell R2 & axon | somatic clone, with sbb2

photoreceptor cell R3 & axon | somatic clone, with sbb1

photoreceptor cell R3 & axon | somatic clone, with sbb2

photoreceptor cell R4 & axon | somatic clone, with sbb1

photoreceptor cell R4 & axon | somatic clone, with sbb2

photoreceptor cell R5 & axon | somatic clone, with sbb1

photoreceptor cell R5 & axon | somatic clone, with sbb2

photoreceptor cell R6 & axon | somatic clone, with sbb1

photoreceptor cell R6 & axon | somatic clone, with sbb2

Detailed Description
Statement
Reference

R7 and R8 photoreceptor cell axons extend normally through the lamina to terminate in the medulla in animals expressing sbbA.GMR.T:Hsap\MYC.

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
Partially rescues
Comments

The photoreceptor R1-R6 cell targeting defects of sbb1 or sbb2 mosaics (in which almost all of the eye is homozygous for the sbb mutation while other tissues are heterozygous) are partially rescued by sbbA.GMR.T:Hsap\MYC; most R1-R6 axons correctly target the lamina, although a small number of R1-R6 axons in each hemisphere, predominantly those in the posterior regions of the eye, still project through the lamina to terminate in the medulla.

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
sbbA.GMR.T:Hsap\MYC
sbbA.GMR.Tag:MYC
Name Synonyms
Secondary FlyBase IDs
    References (1)