FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\B52s2249
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General Information
Symbol
Dmel\B52s2249
Species
D. melanogaster
Name
FlyBase ID
FBal0011148
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
Allele components
Component
Use(s)
Inserted element
Encoded product / tool
Mutations Mapped to the Genome
Curation Data
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

B52s2249 homozygous mutant embryos do not show any hatching delay but show retarded larval growth and die about two days after hatching. The ventral nerve cord of the mutant larvae is narrower than in controls but no obvious structural defects are observed. B52s2249 larvae display defects in muscle movement: the frequency of coordinated muscle contractions is decreased in first instar larvae and second instar larvae appear rigid and paralysed compared to controls.

The number of ChAT vesicles in larval abdominal neuromeres is significantly decreased relative to controls.

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

M. Scott.

Comments
Comments

Complements: sqdj4B4. Complements: sqdj6E3. Complements: sqdj8E7.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (4)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (8)