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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tlr7tm1Flv
targeted mutation 1, Richard A Flavell
MGI:3040902
Summary 6 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Tlr7tm1Flv/Tlr7tm1Flv B6.129S1-Tlr7tm1Flv MGI:4837537
hm2
Tlr7tm1Flv/Tlr7tm1Flv involves: 129S1/Sv MGI:3042846
cx3
Fcgr2btm1Ttk/Fcgr2btm1Ttk
Tlr7tm1Flv/Y
X/Yaa
B6.Cg-Fcgr2btm1Ttk Tlr7tm1Flv Yaa MGI:5488508
cx4
Tlr7tm1Flv/Y
X/Yaa
B6.Cg-Tlr7tm1Flv Yaa MGI:5488500
cx5
Faslpr/Faslpr
Tlr7tm1Flv/Y
involves: 129S1/Sv * C57BL/6 * MRL/Mp MGI:5478501
ot6
Tlr7tm1Flv/Y B6.129S1-Tlr7tm1Flv MGI:5488507


Genotype
MGI:4837537
hm1
Allelic
Composition
Tlr7tm1Flv/Tlr7tm1Flv
Genetic
Background
B6.129S1-Tlr7tm1Flv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tlr7tm1Flv mutation (1 available); any Tlr7 mutation (21 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• in the serum and as glomerular deposition
• in the serum and as glomerular deposition

hematopoietic system
• in the serum and as glomerular deposition
• in the serum and as glomerular deposition




Genotype
MGI:3042846
hm2
Allelic
Composition
Tlr7tm1Flv/Tlr7tm1Flv
Genetic
Background
involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tlr7tm1Flv mutation (1 available); any Tlr7 mutation (21 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• while IFNalpha secretion in response to infection with vesicular stomatitis virus (a ssRNA virus) was similar to controls, serum levels of IFNalpha were reduced after infection relative to controls

homeostasis/metabolism
• while IFNalpha secretion in response to infection with vesicular stomatitis virus (a ssRNA virus) was similar to controls, serum levels of IFNalpha were reduced after infection relative to controls




Genotype
MGI:5488508
cx3
Allelic
Composition
Fcgr2btm1Ttk/Fcgr2btm1Ttk
Tlr7tm1Flv/Y
X/Yaa
Genetic
Background
B6.Cg-Fcgr2btm1Ttk Tlr7tm1Flv Yaa
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fcgr2btm1Ttk mutation (7 available); any Fcgr2b mutation (49 available)
Tlr7tm1Flv mutation (1 available); any Tlr7 mutation (21 available)
Yaa mutation (18 available); any Yaa mutation (21 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• survival is prolonged compared to mutant mice wild-type for Tlr7

immune system
• less severe at 5 months of age compared to mutant mice wild-type for Tlr7
• activation of splenocytes is reduced compared to mutant mice wild-type for Tlr7
• autoantibodies show a homogeneous nuclear pattern
• develop a lupus like syndrome at a later age and in lower numbers compared to mutant mice wild-type for Tlr7
• increase in anti-RNA IgG levels in the serum at 4 - 6 months of age is less severe than in mutant mice wild-type for Tlr7 and is similar to mice homozygous for Fcgr2btm1Ttk alone

renal/urinary system
• kidney disease is less severe at 5 months of age compared to mutant mice wild-type for Tlr7

hematopoietic system
• less severe at 5 months of age compared to mutant mice wild-type for Tlr7
• activation of splenocytes is reduced compared to mutant mice wild-type for Tlr7

growth/size/body
• less severe at 5 months of age compared to mutant mice wild-type for Tlr7




Genotype
MGI:5488500
cx4
Allelic
Composition
Tlr7tm1Flv/Y
X/Yaa
Genetic
Background
B6.Cg-Tlr7tm1Flv Yaa
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tlr7tm1Flv mutation (1 available); any Tlr7 mutation (21 available)
Yaa mutation (18 available); any Yaa mutation (21 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
N
• spleen marginal zone B cell numbers are similar to wild-type controls
• splenocyte proliferation in response to imiquimod is similar to controls




Genotype
MGI:5478501
cx5
Allelic
Composition
Faslpr/Faslpr
Tlr7tm1Flv/Y
Genetic
Background
involves: 129S1/Sv * C57BL/6 * MRL/Mp
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Faslpr mutation (39 available); any Fas mutation (82 available)
Tlr7tm1Flv mutation (1 available); any Tlr7 mutation (21 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• decrease in accumulation of double-negative T cells in the spleen compared to Faslpr homozygotes
• decrease in proportion of CD4+ T cells expressing CD44, both in the lymph node and spleen compared to Faslpr homozygotes
• spleen weight is decreased compared to Faslpr homozygotes
• general B cell activation is inhibited compared to Faslpr homozygotes, as indicated by decreased CD44 expression in splenic B cells
• serum IgG2a levels are decreased compared to Faslpr homozygotes
• serum IgG3 levels are decreased compared to Faslpr homozygotes
• lymph node weight is decreased compared to Faslpr homozygotes
• plasmacytoid DCs exhibit a more immature phenotype compared to Faslpr homozygotes, with decreased expression of MHC class II
• renal disease is significantly decreased compared to Faslpr homozygotes, with mice showing decreased glomerular protein deposition and preserved glomerular structure
• although skin disease is evident in mutants, it occurs with a very low frequency and very little is seen at 16 weeks of age
• mutants exhibit impaired generation of antibodies to RNA complexes and generation of high-titer Smith antibodies is blocked
• DNA autoantibodies are seen in mutants

hematopoietic system
• decrease in accumulation of double-negative T cells in the spleen compared to Faslpr homozygotes
• decrease in proportion of CD4+ T cells expressing CD44, both in the lymph node and spleen compared to Faslpr homozygotes
• spleen weight is decreased compared to Faslpr homozygotes
• general B cell activation is inhibited compared to Faslpr homozygotes, as indicated by decreased CD44 expression in splenic B cells
• serum IgG2a levels are decreased compared to Faslpr homozygotes
• serum IgG3 levels are decreased compared to Faslpr homozygotes




Genotype
MGI:5488507
ot6
Allelic
Composition
Tlr7tm1Flv/Y
Genetic
Background
B6.129S1-Tlr7tm1Flv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tlr7tm1Flv mutation (1 available); any Tlr7 mutation (21 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• absence of the splenocyte proliferation response to imiquimod

hematopoietic system
• absence of the splenocyte proliferation response to imiquimod

cellular
• absence of the splenocyte proliferation response to imiquimod





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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
05/07/2024
MGI 6.23
The Jackson Laboratory