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Phenotypes Associated with This Genotype
Genotype
MGI:3849994
Allelic
Composition
Tg(Lck-cre)548Jxm/?
Tgfb1tm2.1Doe/Tgfb1tm2.1Doe
Genetic
Background
involves: 129S6/SvEvTac * Black Swiss * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tgfb1tm2.1Doe mutation (0 available); any Tgfb1 mutation (34 available)
Tg(Lck-cre)548Jxm mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Lung and salivary gland inflammation in Tgfb1tm2.1Doe/Tgfb1tm2.1Doe Tg(Lck-cre)548Jxm/? (b,e) and Tgfb1tm1Doe/Tgfb1tm2.1Doe Tg(Lck-cre)548Jxm/? (c,f) mice

growth/size/body
• there is more than a 10% reduction in mean weight of mice compared to controls at 5 months of age

digestive/alimentary system
• modest salivary gland inflammation is observed in mice at 5 months of age

immune system
• there are slightly more CD8+ T cells than CD4+ T cells among splenocytes
• there is a higher percentage of T cells expressing activation markers
• thymus weight at 5 months of age is reduced by more than a third
• thymus cellularity is reduced by more than two-thirds at 1 month of age
• spleen weight is reduced by about a third at 2 months of age
• spleen cellularity is about half that of controls at 5 months of age
• interferon-gamma secretion is enhanced in mutant T cells when activated with various stimuli
• interleukin-2 secretion is enhanced in mutant T cells when activated with various stimuli
• modest salivary gland inflammation is observed in mice at 5 months of age
• modest inflammation is observed in the lungs at 5 months of age

respiratory system
• modest inflammation is observed in the lungs at 5 months of age

endocrine/exocrine glands
• modest salivary gland inflammation is observed in mice at 5 months of age
• thymus weight at 5 months of age is reduced by more than a third
• thymus cellularity is reduced by more than two-thirds at 1 month of age

hematopoietic system
• thymus weight at 5 months of age is reduced by more than a third
• thymus cellularity is reduced by more than two-thirds at 1 month of age
• there are slightly more CD8+ T cells than CD4+ T cells among splenocytes
• spleen weight is reduced by about a third at 2 months of age
• spleen cellularity is about half that of controls at 5 months of age
• there is a higher percentage of T cells expressing activation markers


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