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Phenotypes Associated with This Genotype
Genotype
MGI:4822462
Allelic
Composition
Sphk1tm1Rlp/Sphk1tm1Rlp
Genetic
Background
involves: 129S6/SvEvTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Sphk1tm1Rlp mutation (2 available); any Sphk1 mutation (30 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mutants are protected from LPS lethality

immune system
• increase in IL-1beta levels in mesenteric lymph nodes but reduced levels in the lungs after LPS challenge
• mesenteric lymph nodes are 3 times larger than in wild-type 18 hours after LPS challenge
• mutants exhibit a similar level of initial development of inflammation as wild-type mice in response to severe challenge with lipopolysaccharide (LPS), however attenuation of the inflammation occurs 18 hours after challenge while wild-type mice succumb to the infection

homeostasis/metabolism
• increase in IL-1beta levels in mesenteric lymph nodes but reduced levels in the lungs after LPS challenge


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