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Phenotypes Associated with This Genotype
Genotype
MGI:6188975
Allelic
Composition
Scyl1tm1.1Spel/Scyl1tm1.1Spel
Scyl3tm1.1Spel/Scyl3tm1.1Spel
Genetic
Background
involves: 129S6/SvEvTac * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Scyl1tm1.1Spel mutation (0 available); any Scyl1 mutation (21 available)
Scyl3tm1.1Spel mutation (0 available); any Scyl3 mutation (31 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• in the ventral horn of the spinal cord to a greater extent than in Scyl1tm1.1Spel single homozygotes
• of large motor neurons in the ventral horn of the spinal cord at 4 weeks compared with Scyl1tm1.1Spel single homozygotes
• at 8 weeks compared with wild-type mice
• at 4 and 8 weeks with Tardbp pathology
• reduced number of large caliber axons and total number of myelinated fibers in the sciatic nerve at 4 weeks of age
• at 8 weeks compared with wild-type mice
• reduced total number of myelinated fibers in the sciatic nerve at 4 weeks of age
• at 8 weeks compared with wild-type mice

growth/size/body
• compared with either single homozygotes
• at 8 weeks compared with Scyl1tm1.1Spel single homozygotes
• by 3 weeks of age

behavior/neurological
• progressive motor dysfunction leading to a paralysis that is worse than in Scyl1tm1.1Spel single homozygotes at the same age
• progressive motor dysfunction leading to a paralysis that is worse than in Scyl1tm1.1Spel single homozygotes at the same age

muscle
• reduced cross-sectional area in rectus femoris and bicep brachii at 4 and 8 weeks of age that is more severe at 4 weeks than in Scyl1tm1.1Spel single homozygotes
• at 8 weeks compared with wild-type mice

cellular
• in the ventral horn of the spinal cord to a greater extent than in Scyl1tm1.1Spel single homozygotes


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