Mouse Models AOA2/SCAN2/SCAR1 Publication

Setx-/-

Identification

Causal gene(s)
SETX
Repeat size or mutation
Homozygous Setx knock-out mice
Animal model
Mouse

Model Details

Mouse strain / background
C57BL6 and 129Sv
Type of model
knockout

Transgenic Construct

Transgenic construct: sequence type
A Cre-LoxP system was used to delete exon 4 of the Setx gene.
Transgenic construct: details
A Neo cassette with a LoxP site was inserted into a BAC clone corresponding to mouse chromosome 2 and the Setx genomic sequence. These were transfected in ES cells and Neo+ cells were selected. Neo cassette was excised by crossing with a Cre deleter strain to generate the Setx-/- mice

Phenotype

Hallmark features
No phenotype related to AOA2, more DNA double-strand breaks, defect in disassembly of Rad51 filaments, accumulation of DNA/RNA hybrids (R loops), failure of crossing-over

Source & Publications

Originating lab / institution
University of Queensland

Twenty Twenty-Five

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