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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Myd88tm1Defr
targeted mutation 1, Anthony L DeFranco
MGI:3809600
Summary 5 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Myd88tm1Defr/Myd88tm1Defr
Tg(Itgax-cre)1-1Reiz/0
B6.Cg-Myd88tm1Defr Tg(Itgax-cre)1-1Reiz MGI:3809643
cn2
Myd88tm1Defr/Myd88tm1Defr
Tnip1tm1.2Ama/Tnip1tm1.2Ama
Tg(Itgax-cre)1-1Reiz/0
involves: 129P2/OlaHsd * C57BL/6 * C57BL/6J * CBA MGI:5547520
cn3
Lyntm1.1Calo/Lyntm1.1Calo
Myd88tm1Defr/Myd88tm1Defr
Tg(Itgax-cre)1-1Reiz/0
involves: 129P2/OlaHsd * C57BL/6 * CBA MGI:5545814
cn4
Myd88tm1Defr/Myd88tm1Defr
Tg(Vil1-cre)997Gum/0
involves: 129P2/OlaHsd * C57BL/6J * SJL MGI:5297575
cn5
Myd88tm1Defr/Myd88tm1Defr
Commd10Tg(Vav1-icre)A2Kio/Commd10+
involves: 129P2/OlaHsd * C57BL/6 * SJL MGI:3809645


Genotype
MGI:3809643
cn1
Allelic
Composition
Myd88tm1Defr/Myd88tm1Defr
Tg(Itgax-cre)1-1Reiz/0
Genetic
Background
B6.Cg-Myd88tm1Defr Tg(Itgax-cre)1-1Reiz
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Myd88tm1Defr mutation (4 available); any Myd88 mutation (52 available)
Tg(Itgax-cre)1-1Reiz mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• dendritic cell maturation mediated by injections of TLR9 agonists is diminished in these mice
• maturation markers on DCs such as I-Ab, CD80, and CD86 have several fold lower expression than in controls
• less Th1 T cells develop when nave antigen-specific T cells are transferred into these mice with cognate antigen and a TLR9 agonist
• antigen specific IgG1 levels are lower by almost an order of magnitude compared to controls after immunization with OVA-peptide and TLR9 agonist
• antigen specific IgG2b levels are lower by an order of magnitude compared to controls after immunization with OVA-peptide and TLR9 agonist
• antigen specific IgG2c levels are lower by several orders of magnitude than controls after immunization with OVA-peptide and TLR9 agonist
• NK cells in vivo make much several fold less IFN-gamma in response to injections of TLR9 agonists
• there is also a reduction in IFN-gamma production upon LPS administration
• mice fail to make IL-12p40 in response to the TLR9 agonist CpG-containing oligodeoxynucleotide ODN1826
• IL-12p40 production is reduced 5- to 30- fold in response to agonists to TLR1 +TLR2, TLR4, TLR5, TLR7, or TLR9
• circulating levels of IL-6 one hour after TLR9 stimulation is half that in wild-type controls
• DCs fail to secrete cytokines in response to TLR9 agonists
• nave antigen-specific T cells expand at a much slower rate when transferred into these mice with cognate antigen and TLR9 agonist

homeostasis/metabolism
• mice fail to make IL-12p40 in response to the TLR9 agonist CpG-containing oligodeoxynucleotide ODN1826
• IL-12p40 production is reduced 5- to 30- fold in response to agonists to TLR1 +TLR2, TLR4, TLR5, TLR7, or TLR9
• circulating levels of IL-6 one hour after TLR9 stimulation is half that in wild-type controls

hematopoietic system
• dendritic cell maturation mediated by injections of TLR9 agonists is diminished in these mice
• maturation markers on DCs such as I-Ab, CD80, and CD86 have several fold lower expression than in controls
• less Th1 T cells develop when nave antigen-specific T cells are transferred into these mice with cognate antigen and a TLR9 agonist
• antigen specific IgG1 levels are lower by almost an order of magnitude compared to controls after immunization with OVA-peptide and TLR9 agonist
• antigen specific IgG2b levels are lower by an order of magnitude compared to controls after immunization with OVA-peptide and TLR9 agonist
• antigen specific IgG2c levels are lower by several orders of magnitude than controls after immunization with OVA-peptide and TLR9 agonist
• NK cells in vivo make much several fold less IFN-gamma in response to injections of TLR9 agonists
• there is also a reduction in IFN-gamma production upon LPS administration

cellular
• dendritic cell maturation mediated by injections of TLR9 agonists is diminished in these mice
• maturation markers on DCs such as I-Ab, CD80, and CD86 have several fold lower expression than in controls




Genotype
MGI:5547520
cn2
Allelic
Composition
Myd88tm1Defr/Myd88tm1Defr
Tnip1tm1.2Ama/Tnip1tm1.2Ama
Tg(Itgax-cre)1-1Reiz/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * C57BL/6J * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Myd88tm1Defr mutation (4 available); any Myd88 mutation (52 available)
Tg(Itgax-cre)1-1Reiz mutation (4 available)
Tnip1tm1.2Ama mutation (0 available); any Tnip1 mutation (57 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
N
• unlike Tnip1tm1.1Ama/Tnip1tm1.1Ama Tg(Itgax-cre)1-1Reiz hematopoietic stem cells used in transplantation experiments, hematopoietic stem cells do not alter susceptibility to IMQ-induced psoriasis

immune system
N
• unlike Tnip1tm1.1Ama/Tnip1tm1.1Ama Tg(Itgax-cre)1-1Reiz mice, mice exhibit normal spleen mass, myeloid cell numbers and activated T lymphocyte




Genotype
MGI:5545814
cn3
Allelic
Composition
Lyntm1.1Calo/Lyntm1.1Calo
Myd88tm1Defr/Myd88tm1Defr
Tg(Itgax-cre)1-1Reiz/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lyntm1.1Calo mutation (0 available); any Lyn mutation (65 available)
Myd88tm1Defr mutation (4 available); any Myd88 mutation (52 available)
Tg(Itgax-cre)1-1Reiz mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
N
• inflammation seen in mutant mice wild-type for Myd88 is reversed and mice do not develop autoantibodies

renal/urinary system
N
• kidneys are of normal size and cellularity and show no signs of inflammation




Genotype
MGI:5297575
cn4
Allelic
Composition
Myd88tm1Defr/Myd88tm1Defr
Tg(Vil1-cre)997Gum/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6J * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Myd88tm1Defr mutation (4 available); any Myd88 mutation (52 available)
Tg(Vil1-cre)997Gum mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• mice exhibit a higher mucosal bacterial loads compared with Myd88tm1Defr control mice but not as much as in Myd88 null or conditionally knocked-out mice
• however, luminal bacterial loads are normal




Genotype
MGI:3809645
cn5
Allelic
Composition
Myd88tm1Defr/Myd88tm1Defr
Commd10Tg(Vav1-icre)A2Kio/Commd10+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Commd10Tg(Vav1-icre)A2Kio mutation (3 available); any Commd10 mutation (24 available)
Myd88tm1Defr mutation (4 available); any Myd88 mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• NK cells fail to make IFN-gamma in response to injections of TLR9 agonists
• NK cells in vivo have a blunted IFN-gamma response to LPS injections

hematopoietic system
• NK cells fail to make IFN-gamma in response to injections of TLR9 agonists
• NK cells in vivo have a blunted IFN-gamma response to LPS injections





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last database update
11/12/2024
MGI 6.24
The Jackson Laboratory