FB2026_02 , released June 18, 2026
Allele: Dmel\btA
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General Information
Symbol
Dmel\btA
Species
D. melanogaster
Name
FlyBase ID
FBal0400124
Feature type
allele
Associated gene
Dmel\bt
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Allele class
Mutagen
Nature of the Allele
Allele class
Mutagen
CRISPR/Cas9
(Fourth Chromosome Resource Project and Newfeld, 2022-)
Progenitor genotype
Cytology
Description

Base change T735988A and frameshift deletion of 4:735989 (R6) resulting in the addition of EMALCSNQSSLNPRRKYWISEIKKIISTPTNQLY after glycine 887 of the bt RJ isoform and premature truncation after the novel amino acids.

(Fourth Chromosome Resource Project and Newfeld, 2022-)
Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
delins
4:735,988..735,989 [+]
Comment:

Bases 4:735988 and 4:735989 of bt are replaced with an "A" leading to a frameshift and early translation termination after the additon of 34 novel amino acids (EMALCSNQSSLNPRRKYWISEIKKIISTPTNQLY).

(Fourth Chromosome Resource Project and Newfeld, 2022-)
Variant Molecular Consequences
Associated Sequence Data
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
 
UniProtKB/Swiss-Prot
    UniProtKB/TrEMBL
      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
      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
      Comments
      Images (0)
      Mutant
      Wild-type
      Stocks (2)
      Notes on Origin
      Discoverer
      External Crossreferences and Linkouts ( 0 )
      Synonyms and Secondary IDs (1)
      Reported As
      Symbol Synonym
      btA
      (Weasner et al., 2025)
      Name Synonyms
      Secondary FlyBase IDs
        References (2)