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Phenotypes Associated with This Genotype
Genotype
MGI:3652533
Allelic
Composition
Aars1sti/Aars1sti
Genetic
Background
B6.Cg-Aars1sti/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Aars1sti mutation (1 available); any Aars1 mutation (72 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Aars1sti/ Aars1sti

nervous system
N
• No changes in microtubule levels are found in Purkinje cells
• loss of cells beginning at three weeks of age
• extensive cell loss by six weeks of age especially in rostral cerebellum

behavior/neurological
• mild tremors occur at 6 weeks of age and progress to ataxia
• progressive ataxia
• as demonstrated by rotorod

integument
• patchy hair loss occurs over time
• fur has rough, unkempt, sticky appearance
• electron microscopy indicates short, broken, deformed hair fibers
• hair fibers break at follicular ostium and have cuff of compacted inner root sheath cells
• hyperplasia of outer root sheath
• hair fibers twisted within the follicle


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
01/28/2026
MGI 6.24
The Jackson Laboratory