FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\vibj5A6
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General Information
Symbol
Dmel\vibj5A6
Species
D. melanogaster
Name
FlyBase ID
FBal0221189
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Allele class
Nature of the Allele
Allele class
Progenitor genotype
Associated Insertion(s)
Cytology
Description

Insertion within the first intron of the vib gene.

Insertion within the first intron.

Allele components
Component
Use(s)
Inserted element
Encoded product / tool
Mutations Mapped to the Genome
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

vib133/vibj5A6 or vib1105/vibj5A6 transheterozygous larval brain neuroblasts frequently display defective asymmetric cell divisions, as compared to controls: aPKC, Par6, and Gαi, but not Baz, Insc, Pins and Cdc42, fail to localize to a strong apical cortex crescent during metaphase; Mira, Pros, Brat, Numb and Pon fail to localize to a strong basal cortex crescent during metaphase; and the mitotic spindle axis is misoriented with respect to the neuroblast polarity, although centrosomes and spindle architecture are apparently unaffected. Similarly, vibj5A6/Df(3R)BSC850 transheterozygous larval brain neuroblasts also frequently fail to localize aPKC and Mira to opposite apical and basal cortex crescents, respectively, during metaphase. vib133/vibj5A6 or vib1105/vibj5A6 transheterozygous larval brain neuroblasts display highly prevalent cytokinesis defects, as compared to controls.

Larval brains of vibj5A6 mutants exhibit frequent polyploid cells but have normal frequences of anaphases, consistent with a defect in neuroblast cytokinesis.

Germline clones produce eggs with patterning defects: variable deletion of denticle belts and head defects. Lethality occurs during the larval and pupal stages.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
NOT suppressed by
Phenotype Manifest In
NOT suppressed by
Additional Comments
Genetic Interactions
Statement
Reference
Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Images (0)
Mutant
Wild-type
Stocks (2)
Notes on Origin
Discoverer

L. and Y. Jan.

Comments
Comments

Complements: sqz02102. Complements: l(3)0334603346. Complements: l(3)0367503675. Complements: l(3)0640406404. Complements: nos07117. Complements: nosj3B6. Complements: nosj4B6. Complements: l(3)s1922s1922.

Based on the lethal stage of hemizygous alleles (over Df(3R)Dl-BX12), the following vib alleles can be ranked from strongest to weakest as follows: vibj7A3 > vibS110416 > vibEP513 = vibj5A6 > vibS045002c > vibEP651.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (4)
Reported As
Name Synonyms
Secondary FlyBase IDs
  • FBal0219586
  • FBal0010964
References (10)