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Phenotypes Associated with This Genotype
Genotype
MGI:3623151
Allelic
Composition
Slc9a1swe/Slc9a1swe
Genetic
Background
involves: C57BL/6J * SJL/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Slc9a1swe mutation (2 available); any Slc9a1 mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• Background Sensitivity: most of the affected F1 and F2 hybrids survive 6 months

behavior/neurological
• associated with absence seizures
• Background Sensitivity: spike-wave seizure activity is markedly enhanced compared to homozygotes on congenic backgrounds; seizures are longer in duration and very frequent by 4 weeks of age and persist several months
• mutants undergo rare spontaneous generalized tonic-clonic seizure episodes as early as 14 days og age; seizures are usually of less than one minute and are preceded by several seconds of wild running
• electrocorticographic recording from 4-5 week old (SJL x B6) F2 mutants display frequent episodes of generalized bilaterally symmetric spike-wave activity with a rhythmic periodicity ranging from 3 to 4.5 seconds; spikes are always preceded by waves; spike wave bursts are specifically associated with complete behavioral arrest for the durationof the discharge

nervous system
• Background Sensitivity: spike-wave seizure activity is markedly enhanced compared to homozygotes on congenic backgrounds; seizures are longer in duration and very frequent by 4 weeks of age and persist several months
• mutants undergo rare spontaneous generalized tonic-clonic seizure episodes as early as 14 days og age; seizures are usually of less than one minute and are preceded by several seconds of wild running
• electrocorticographic recording from 4-5 week old (SJL x B6) F2 mutants display frequent episodes of generalized bilaterally symmetric spike-wave activity with a rhythmic periodicity ranging from 3 to 4.5 seconds; spikes are always preceded by waves; spike wave bursts are specifically associated with complete behavioral arrest for the durationof the discharge


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
03/25/2025
MGI 6.24
The Jackson Laboratory