About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Rfx5tm1.1Ifo
targeted mutation 1.1, Irmgard Foerster
MGI:2386501
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Rfx5tm1.1Ifo/Rfx5tm1.1Ifo involves: 129 * C57BL/6 MGI:3844892
cn2
Rfx5tm1Ifo/Rfx5tm1.1Ifo
Lyz2tm1(cre)Ifo/Lyz2+
involves: 129 * C57BL/6 * C.B-20 MGI:3844880


Genotype
MGI:3844892
hm1
Allelic
Composition
Rfx5tm1.1Ifo/Rfx5tm1.1Ifo
Genetic
Background
involves: 129 * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rfx5tm1.1Ifo mutation (0 available); any Rfx5 mutation (34 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• Kupffer cells do not express MHC II complexes
• thymus cortex is almost completely devoid of MHC-II expression
• peripheral CD4+ T cell numbers are reduced more than 10-fold
• CD4 single-positive thymocyte numbers are decreased to 1.4% of thymocytes compared to 7.6% in wild-type controls
• class II expression on most CD11c+ dendritic cells is absent or is reduced
• only 1.2% of bone marrow derived dendritic cells express class II compared to 32% of wild-type controls
• unactivated B cells do not express class II on the surface and have 10-fold lower expression than controls when activated with LPS and IL-4
• antigen specific IgG1 levels are 100 to 1000-fold less than controls during the course of a secondary response to a T cell-dependent antigen
• mice fail to produce measurable antigen specific IgM levels in response to T cell dependent antigens
• thymus cortex is almost completely devoid of MHC-II expression while the thymic medulla cells strongly expresses MHC-II on their cell surface
• unactivated B cells do not express class II on the surface and have 10-fold lower expression than controls when activated with LPS and IL-4
• macrophages do not express class II nor do Kupffer cells in the liver
• class II expression on most CD11c+ dendritic cells is absent or is reduced
• only 1.2% of bone marrow derived dendritic cells express class II compared to 32% of wild-type controls
• peritoneal macrophages fail to upregulate class II expression in response to IFN-gamma
• macrophages do not express class II
• peritoneal macrophages fail to upregulate class II expression in response to IFN-gamma

hematopoietic system
• Kupffer cells do not express MHC II complexes
• thymus cortex is almost completely devoid of MHC-II expression
• peripheral CD4+ T cell numbers are reduced more than 10-fold
• CD4 single-positive thymocyte numbers are decreased to 1.4% of thymocytes compared to 7.6% in wild-type controls
• class II expression on most CD11c+ dendritic cells is absent or is reduced
• only 1.2% of bone marrow derived dendritic cells express class II compared to 32% of wild-type controls
• unactivated B cells do not express class II on the surface and have 10-fold lower expression than controls when activated with LPS and IL-4
• antigen specific IgG1 levels are 100 to 1000-fold less than controls during the course of a secondary response to a T cell-dependent antigen
• mice fail to produce measurable antigen specific IgM levels in response to T cell dependent antigens
• macrophages do not express class II
• peritoneal macrophages fail to upregulate class II expression in response to IFN-gamma

liver/biliary system
• Kupffer cells do not express MHC II complexes

cardiovascular system
• Kupffer cells do not express MHC II complexes

endocrine/exocrine glands
• thymus cortex is almost completely devoid of MHC-II expression




Genotype
MGI:3844880
cn2
Allelic
Composition
Rfx5tm1Ifo/Rfx5tm1.1Ifo
Lyz2tm1(cre)Ifo/Lyz2+
Genetic
Background
involves: 129 * C57BL/6 * C.B-20
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lyz2tm1(cre)Ifo mutation (14 available); any Lyz2 mutation (40 available)
Rfx5tm1.1Ifo mutation (0 available); any Rfx5 mutation (34 available)
Rfx5tm1Ifo mutation (1 available); any Rfx5 mutation (34 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• only 6.2% of bone marrow derived macrophages express MHC-II on the surface compared to 30% of controls
• incubation with IFN-gamma increases percentage to 19% which is much less than 72% of wild-type macrophages

hematopoietic system
• only 6.2% of bone marrow derived macrophages express MHC-II on the surface compared to 30% of controls
• incubation with IFN-gamma increases percentage to 19% which is much less than 72% of wild-type macrophages





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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
11/12/2024
MGI 6.24
The Jackson Laboratory