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Phenotypes Associated with This Genotype
Genotype
MGI:5699330
Allelic
Composition
Tg(SOD1*H46R)LAra/0
Genetic
Background
involves: C57BL/6 * DBA/2
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(SOD1*H46R)LAra mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• rotarod scores start to decrease at 30 weeks of age
• mice develop motor paralysis starting from the hindlimbs, spreading to the rest of the body; disease onset is on average 239 days in both males and females
• duration of disease is on average 34 and 33 days in males and females, respectively

growth/size/body
• mice begin to lose weight from 29 weeks of age

hematopoietic system
• 40 week old mice exhibit activation of microglia in spinal cords

immune system
• 40 week old mice exhibit activation of microglia in spinal cords

mortality/aging
• shorter lifespan, with average lifespan of 274 and 272 days in males and females, respectively

muscle
• tibialis anterior muscle fibers show typical neuropathic changes (atrophic and infiltrated by inflammatory cells)
• decrease in tibialis anterior muscle weight at 40 weeks of age
• atrophic tibialis anterior muscle fibers

nervous system
• 40 week old mice exhibit activation of microglia in spinal cords
• 40 week old mice exhibit activation of astrocytes in spinal cords
• decrease in spinal cord weight at 40 weeks of age
• the number of spinal motor neurons is reduced to approximately half of that of wild-type mice
• SMI-32-positive motor neurons are often pyknotic in the ventral horns of lumbar spinal cords
• the number of spinal motor neurons is reduced to approximately half of that of wild-type mice and transgenic mice with both the H46R and C111S mutations

limbs/digits/tail
• tibialis anterior muscle fibers show typical neuropathic changes (atrophic and infiltrated by inflammatory cells)
• decrease in tibialis anterior muscle weight at 40 weeks of age

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
amyotrophic lateral sclerosis type 1 DOID:0060193 OMIM:105400
J:221350


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
08/02/2024
MGI 6.24
The Jackson Laboratory