FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\bcd1
Open Close
General Information
Symbol
Dmel\bcd1
Species
D. melanogaster
Name
FlyBase ID
FBal0001075
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
bcd085
Key Links
Genomic Maps

Nature of the Allele
Progenitor genotype
Cytology
Description

Truncates the protein after amino acid 187 and removes several distinct C-terminal domains (including the RRM, the opa repeat and most of the Ser Thr-rich sequence).

Stop codon at amino acid position 179.

Amino acid replacement: Q184term.

Nucleotide substitution: C2564T.

The mutation is 28 amino acids downstream of the homeobox.

2564 C --> T; 184 gln --> amber

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

C6758123T

Reported nucleotide change:

C2564T

Amino acid change:

Q179term | bcd-PD; Q108term | bcd-PE; Q103term | bcd-PF; Q184term | bcd-PG

Reported amino acid change:

Q184term

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

Embryos derived from bcd6/bcd1 females lack all head and thoracic structures and have a duplicated set of posterior spiracles at the anterior end.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Suppressed by
Additional Comments
Genetic Interactions
Statement
Reference
Xenogenetic Interactions
Statement
Reference

Mdoa\bcdbcd.1 partially rescues the defects seen in embryos derived from bcd6/bcd1 females, with the degree of rescue depending on the Mdoa\bcdbcd.1 line used. In the strongest rescuing line, complete rescue is seen in a small proportion of embryos, as shown by the presence of all three thoracic segments, a complete head skeleton and other anterior structures such as the mouthhooks and labrum. 7.4% of embryos can develop into fully fertile adults, but most embryos show no rescue.

Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
Comments
Comments

hb protein expression in early bcd1 mutant embryos has been studied.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (2)
References (14)