FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\baz815-8
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General Information
Symbol
Dmel\baz815-8
Species
D. melanogaster
Name
FlyBase ID
FBal0051779
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
baz815.8
Key Links
Genomic Maps

Allele class
Mutagen
Nature of the Allele
Allele class
Progenitor genotype
Cytology
Description

Amino acid replacement: E253term.

Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Nucleotide change:

G17189628T

Amino acid change:

E253term | baz-PA; E274term | baz-PB; E253term | baz-PC; E274term | baz-PD

Reported amino acid change:

E253term

Comment:

Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.

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

Somatic clones of baz815-8 homozygous mutant cells in the pupal eye disc show extra inter-ommatidial cells and increased frequency of disruptions in the structure of adherens junctions.

Homozygous clones in the follicle cells results in multilayering of the follicle cell epithelium and gaps are also sometimes seen. Single mutant cells adjacent to wild-type cells undergo morphological changes similar to a epithelial-mesenchymal transition.

The number of filopodia at the leading edge is significantly reduced in mutant embryos.

Larvae expressing bazdsRNA.cRa.Scer\UAS under the control of Scer\GAL4C57 in the muscles in a baz815-8/+ background show an increase in evoked excitatory junctional potential (EJP) amplitude compared to controls, and the amplitude and frequency of miniature EJPs is increased in these animals compared to wild type.

the majority of mutant egg chambers (baz815-8 homozygous germline clones) stop growing at stage 5 and adopt an oval shape. Furthermore, none of the cells in the cyst accumulate higher levels of cortical actin that are normally found around the oocyte, though two cells with four ring canals lie at the posterior of the mutant egg chamber, as in wild-type. In females dissected 2 days post eclosion, 14% of cysts contain a normal oocyte, whereas 86% arrest at stage 5 with the 16 nurse cell phenotype. The frequency of normal egg chambers falls to about 3% if the females are dissected after 6 days. In wild-type cysts, centrosomes migrate along the fusome to cluster at the anterior of the oocyte in region 2b, and then translocate to the posterior of the oocyte in region 3. In mutant cysts, the centrosomes accumulate at the anterior of the oocyte, but never move to the posterior cortex. Microtubules also remain focused on the anterior of the oocyte and fail to rearrange.

The mitotic spindle of trunk epidermal cells occasionally has an aberrant orientation in embryos. Defects in localisation of ganglion mother cells are seen. The longitudinal axon pathway that is formed by fasciculation of the MP1, pCC, dMP2 and vMP2 neurons does not form.

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

baz815-8 is an enhancer of wing margin | distal phenotype of N55e11

baz815-8/baz[+] is an enhancer of ommatidium phenotype of Scer\GAL4hs.2sev, dgoUAS.cFa

NOT Enhancer of
Statement
Reference

baz815-8/baz[+] is a non-enhancer of wing hair phenotype of Scer\GAL4hs.2sev, dgoUAS.cFa

Suppressor of
Statement
Reference
NOT Suppressor of
Statement
Reference

baz815-8/baz[+] is a non-suppressor of wing hair phenotype of Scer\GAL4hs.2sev, dgoUAS.cFa

Other
Additional Comments
Genetic Interactions
Statement
Reference

baz815-8/+ enhances the planar cell polarity (PCP) defects in the eye induced by the overexpression of dgoScer\UAS.cFa under the control of Scer\GAL4hs.2sev.

Ptendj189/+ baz815-8/+ double heterozygous larvae have a significant reduction in the number of synaptic boutons at the neuromuscular junction compared to wild type.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments

Expression of bazScer\UAS.T:Avic\GFP.cKa driven by Scer\GAL4da.G32 rescues the embryonic lethality of baz815-8.

Expression of bazΔPDZ3.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 rescues the lethality of baz815-8.

Expression of bazΔ1097-1464.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 rescues the lethality of baz815-8.

Expression of bazΔ1222-1464.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 rescues the lethality of baz815-8.

Expression of bazΔ1325-1464.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 rescues the lethality of baz815-8.

Expression of bazΔ1461-1464.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 rescues the lethality of baz815-8.

Expression of bazΔ1173-1193.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 rescues the lethality of baz815-8.

Expression of bazΔ1107-1464.Scer\UAS.T:Avic\GFP.T:Hsap\PLCD1 driven by Scer\GAL4da.G32 rescues the lethality of baz815-8.

Expression of bazΔ1-317.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 fails to rescue the lethality of baz815-8.

Expression of bazΔPDZ1.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 fails to rescue the lethality of baz815-8.

Expression of bazΔPDZ2.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 fails to rescue the lethality of baz815-8.

Expression of bazΔPDZ1-3.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 fails to rescue the lethality of baz815-8.

Expression of bazΔ969-1464.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 fails to rescue the lethality of baz815-8.

Expression of bazΔ1001-1464.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 fails to rescue the lethality of baz815-8.

Expression of bazΔ968-996.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 fails to rescue the lethality of baz815-8.

Expression of bazΔ1073-1093.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 fails to rescue the lethality of baz815-8.

Expression of bazΔ1-904.Scer\UAS.T:Avic\GFP driven by Scer\GAL4da.G32 fails to rescue the lethality of baz815-8.

Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (2)
References (23)