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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Il4tm1Kopf
targeted mutation 1, Manfred Kopf
MGI:2176268
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Il4tm1Kopf/Il4tm1Kopf involves: 129S2/SvPas MGI:3765453
hm2
Il4tm1Kopf/Il4tm1Kopf involves: 129S2/SvPas * C57BL/6 MGI:3765444
cx3
Il4tm1Kopf/Il4tm1Kopf
Lyntm1Ard/Lyntm1Ard
involves: 129P2/OlaHsd * 129S2/SvPas MGI:4462259


Genotype
MGI:3765453
hm1
Allelic
Composition
Il4tm1Kopf/Il4tm1Kopf
Genetic
Background
involves: 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il4tm1Kopf mutation (4 available); any Il4 mutation (42 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• following exposure to an antigen, mice exhibit reduced eosinophil infiltration (0.60+/-0.17x105 cells/ml compared to 3.15+/-0.66x105 in wild-type mice)
• IgE levels are undetectable (less than 10 ng/ml compared to 3300+/-1300 ng/ml in wild-type mice)
• mice fail to secrete IL-5 after cross-linking of the CD3/TCR complex

hematopoietic system
• following exposure to an antigen, mice exhibit reduced eosinophil infiltration (0.60+/-0.17x105 cells/ml compared to 3.15+/-0.66x105 in wild-type mice)
• IgE levels are undetectable (less than 10 ng/ml compared to 3300+/-1300 ng/ml in wild-type mice)




Genotype
MGI:3765444
hm2
Allelic
Composition
Il4tm1Kopf/Il4tm1Kopf
Genetic
Background
involves: 129S2/SvPas * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il4tm1Kopf mutation (4 available); any Il4 mutation (42 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• unlike in wild-type mice, IgE levels are undetectable prior to and following immunization
• IgG1 levels are reduced 20-fold compared to in wild-type mice and following immunization IgG1 levels are 12-fold lower than in immunized wild-type mice
• following immunization with DNP-ovalbumin, IgG1 antibodies are 10-fold lower than in wild-type mice
• following infection with N. brasiliensis, IgG2 and IgG3 levels are slightly higher than in wild-type mice
• following immunization with DNP-ovalbumin, IgG2 and IgG3 levels are 100- to 500-fold higher than in wild-type mice
• stimulated CD4+ T cells in vitro fail to produce IL-10
• in stimulated CD4+ T cells, the production of IL-3 is reduced more than 70% of wild-type value
• stimulated CD4+ T cells in vitro fail to produce IL-4
• stimulated CD4+ T cells in vitro fail to produce IL-5
• following infection with N. brasiliensis, CD4+ T cells produce reduced levels of Th2 cytokines, increased levels of interferon-gamma, and reduced blood eosinophilia levels compared to infected wild-type mice
• however, CD8+ T cells do produce IL-5 following infection with N. brasiliensis

hematopoietic system
• unlike in wild-type mice, IgE levels are undetectable prior to and following immunization
• IgG1 levels are reduced 20-fold compared to in wild-type mice and following immunization IgG1 levels are 12-fold lower than in immunized wild-type mice
• following immunization with DNP-ovalbumin, IgG1 antibodies are 10-fold lower than in wild-type mice
• following infection with N. brasiliensis, IgG2 and IgG3 levels are slightly higher than in wild-type mice
• following immunization with DNP-ovalbumin, IgG2 and IgG3 levels are 100- to 500-fold higher than in wild-type mice




Genotype
MGI:4462259
cx3
Allelic
Composition
Il4tm1Kopf/Il4tm1Kopf
Lyntm1Ard/Lyntm1Ard
Genetic
Background
involves: 129P2/OlaHsd * 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il4tm1Kopf mutation (4 available); any Il4 mutation (42 available)
Lyntm1Ard mutation (6 available); any Lyn mutation (64 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• in the peritoneum
• in the bone marrow, blood and spleen

immune system
• in the peritoneum
• in the bone marrow, blood and spleen
• increased circulating immune complexes reactive to complement component 1 q
• yet decreased compared to Lyn single mutant
• yet decreased compared to Lyn single mutant

homeostasis/metabolism
• increased circulating immune complexes reactive to complement component 1 q





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last database update
04/16/2024
MGI 6.23
The Jackson Laboratory