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Phenotypes Associated with This Genotype
Genotype
MGI:3813932
Allelic
Composition
Il21rtm1Wjl/Il21rtm1Wjl
Il4tm1Cgn/Il4tm1Cgn
Genetic
Background
involves: 129 * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il21rtm1Wjl mutation (6 available); any Il21r mutation (41 available)
Il4tm1Cgn mutation (4 available); any Il4 mutation (42 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• serum levels of IgGA in nave mice are lower than in controls
• similar defects are noted upon immunization with keyhole limpet hemocyanin (KLH)
• serum levels of IgG1 in nave mice are several log units lower than in controls
• these mice have severely impaired production of antigen-specific IgG1 after immunization with trinitrophenyl-conjugated chicken gamma-globulin (TNP-CGG)
• similar defects are noted upon immunization with KLH
• serum levels of IgG2a in nave mice are lower than in controls
• these mice have severely impaired production of antigen-specific IgG2a after immunization with TNP-CGG
• similar defects are noted upon immunization with KLH
• serum levels of IgG2b in nave mice are lower than in controls
• these mice have severely impaired production of antigen-specific IgG2b after immunization with TNP-CGG
• similar defects are noted upon immunization with KLH
• serum levels of IgG3 in nave mice are lower than in controls
• these mice have severely impaired production of antigen-specific IgG3 after immunization with TNP-CGG
• similar defects are noted upon immunization with KLH
• these mice have 10 to 20% of normal production levels of antigen-specific IgG2b after immunization with TNP-CGG
• similar defects are noted upon immunization with KLH
• lymph nodes after immunization have barely recognizable, poorly organized germinal center-like areas with scattered apoptotic cells

hematopoietic system
• serum levels of IgGA in nave mice are lower than in controls
• similar defects are noted upon immunization with keyhole limpet hemocyanin (KLH)
• serum levels of IgG1 in nave mice are several log units lower than in controls
• these mice have severely impaired production of antigen-specific IgG1 after immunization with trinitrophenyl-conjugated chicken gamma-globulin (TNP-CGG)
• similar defects are noted upon immunization with KLH
• serum levels of IgG2a in nave mice are lower than in controls
• these mice have severely impaired production of antigen-specific IgG2a after immunization with TNP-CGG
• similar defects are noted upon immunization with KLH
• serum levels of IgG2b in nave mice are lower than in controls
• these mice have severely impaired production of antigen-specific IgG2b after immunization with TNP-CGG
• similar defects are noted upon immunization with KLH
• serum levels of IgG3 in nave mice are lower than in controls
• these mice have severely impaired production of antigen-specific IgG3 after immunization with TNP-CGG
• similar defects are noted upon immunization with KLH
• these mice have 10 to 20% of normal production levels of antigen-specific IgG2b after immunization with TNP-CGG
• similar defects are noted upon immunization with KLH


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
04/30/2024
MGI 6.23
The Jackson Laboratory