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Phenotypes Associated with This Genotype
Genotype
MGI:3767441
Allelic
Composition
Tcrbtm1Mom/Tcrbtm1Mom
Tcrdtm1Mom/Tcrdtm1Mom
Genetic
Background
B6.129P2-Tcrbtm1Mom Tcrdtm1Mom/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tcrbtm1Mom mutation (12 available); any Tcrb mutation (98 available)
Tcrdtm1Mom mutation (13 available); any Tcrd mutation (16 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• ratios of T2:T1 and T3:T1 B cells are increased compared to wild-type mice
• mutants exhibit a reduction in plasma cells (B220low IgD-CD138+)
• in the spleen
• 16-18 week old mutants exhibit increased numbers of immature B cells
• mutants exhibit an elevation in T2 and to a lesser extent T3 B cells
• mutants exhibit an elevation in T2 and to a lesser extent T3 B cells
• mutants exhibit an elevation in mature B cells, including both marginal zone and follicular mature B-cell subsets
• in the spleen
• IgE is not detectable in serum of OVA-treated mutants, but high levels are produced in treated wild-type
• in OVA-treated mutants, serum IgG is reduced below saline-treated control levels (J:125656)
• IgG1 is not detected in serum after OVA challenge
• mutants exhibit elevated levels of IgM deposition within kidney glomeruli
• decrease in anti-chromatin IgG, anti-histone IgG, and anti-dsDNA IgG

respiratory system
• ovalbumin-sensitized/challenged mice (OVA) are unable to generate an early phase reaction (EPR- initial phase of brochoconstriction) following OVA provocation

hematopoietic system
• ratios of T2:T1 and T3:T1 B cells are increased compared to wild-type mice
• mutants exhibit a reduction in plasma cells (B220low IgD-CD138+)
• in the spleen
• 16-18 week old mutants exhibit increased numbers of immature B cells
• mutants exhibit an elevation in T2 and to a lesser extent T3 B cells
• mutants exhibit an elevation in T2 and to a lesser extent T3 B cells
• mutants exhibit an elevation in mature B cells, including both marginal zone and follicular mature B-cell subsets
• in the spleen
• IgE is not detectable in serum of OVA-treated mutants, but high levels are produced in treated wild-type
• in OVA-treated mutants, serum IgG is reduced below saline-treated control levels (J:125656)
• IgG1 is not detected in serum after OVA challenge
• mutants exhibit elevated levels of IgM deposition within kidney glomeruli

renal/urinary system
• mutants exhibit elevated levels of IgM deposition within kidney glomeruli, however IgG deposition in the glomeruli is not seen


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
03/25/2025
MGI 6.24
The Jackson Laboratory