FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\Ercc1X
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General Information
Symbol
Dmel\Ercc1X
Species
D. melanogaster
Name
FlyBase ID
FBal0191200
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Allele class
Nature of the Allele
Allele class
Progenitor genotype
Associated Insertion(s)
Cytology
Description

Imperfect reduction of the duplication present in Dp(3;3)Ercc1Xdup, using I-CreI endonuclease. The structure around the mutation site is as follows: SMC2, mutated copy of Ercc1, wild-type copy of Ciao1, 1218bp of extra sequence from the original homologous recombination donor template (which contains a 5' portion of HPS1, the FRT site, the RS(I-CreI) site and a portion of the w gene), HPS1.

Allele components
Component
Use(s)
Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
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

Homozygous and Ercc1X/Df(2R)knSA3 larvae are hypersensitive to UV light compared to wild-type. Mutants are also hypersensitive to methyl methanesulfonate. Zygotic Ercc1X mutants show 16% X chromosome nondisjunction and have a reduction in crossing over along the 3rd chromosome. Ercc1X mutants derived from Ercc1X females show 23% X chromosome nondisjunction and have a reduction in crossing over along the 3rd chromosome.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Enhanced by
Statement
Reference
Phenotype Manifest In
NOT suppressed by
Statement
Reference

Ercc1X has phenotype, non-suppressible by mei-9Ubi.Tag:FLAG

Additional Comments
Genetic Interactions
Statement
Reference

The level of X chromosome nondisjunction seen in Ercc1X mutants derived from Ercc1X females is not altered if the flies are also carrying mei-9Ubi.T:Zzzz\FLAG.

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

Recovered in trans to Df(2R)knSA3.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (1)
Reported As
Symbol Synonym
Name Synonyms
Secondary FlyBase IDs
    References (2)