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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Dapp1tm1Mnz
targeted mutation 1, Michel C Nussenzweig
MGI:2680020
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Dapp1tm1Mnz/Dapp1tm1Mnz B6.129P2-Dapp1tm1Mnz MGI:2680021


Genotype
MGI:2680021
hm1
Allelic
Composition
Dapp1tm1Mnz/Dapp1tm1Mnz
Genetic
Background
B6.129P2-Dapp1tm1Mnz
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dapp1tm1Mnz mutation (0 available); any Dapp1 mutation (28 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• 3- to 5-fold reduction in peritoneal B-1a B cells
• however, numbers of total cells and B cells in the bone marrow and spleen are normal
• B cells are defective in T cell-independent, but not in T cell-dependent, responses to antigen
• proliferative response of B cells to anti-IgM stimulation, but not LPS, anti-CD40, anti-CD40+IL-4, anti-RP105, anti-CD38 and CpG, is severely impaired
• IgG3 response is reduced 14-fold in response to NP-Ficoll immunization
• IgM response is reduced 2- to 3-fold in response to NP-Ficoll immunization

immune system
• 3- to 5-fold reduction in peritoneal B-1a B cells
• however, numbers of total cells and B cells in the bone marrow and spleen are normal
• B cells are defective in T cell-independent, but not in T cell-dependent, responses to antigen
• proliferative response of B cells to anti-IgM stimulation, but not LPS, anti-CD40, anti-CD40+IL-4, anti-RP105, anti-CD38 and CpG, is severely impaired
• IgG3 response is reduced 14-fold in response to NP-Ficoll immunization
• IgM response is reduced 2- to 3-fold in response to NP-Ficoll immunization

cellular
• proliferative response of B cells to anti-IgM stimulation, but not LPS, anti-CD40, anti-CD40+IL-4, anti-RP105, anti-CD38 and CpG, is severely impaired





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last database update
11/05/2024
MGI 6.24
The Jackson Laboratory