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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Ightm1.1Vmd
targeted mutation 1.1, Vishva M Dixit
MGI:5553164
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Ightm1.1Vmd/Ightm1.1Vmd involves: C57BL/6 MGI:5553165
ht2
Ightm1.1Vmd/Igh+ involves: C57BL/6 MGI:5553166


Genotype
MGI:5553165
hm1
Allelic
Composition
Ightm1.1Vmd/Ightm1.1Vmd
Genetic
Background
involves: C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ightm1.1Vmd mutation (0 available); any Igh mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
N
• splenocyte cultures stimulated with LPS alone or LPS and IL4 produce normal numbers of IgM+ cells
• mice exhibit normal somatic hypermutation
• 10-fold reduction in class switch recombination in IgG1+ clones and 7-fold increase in IgE+ clones after LPS and IL4 stimulation
• class switch recombination is largely direct instead of sequential
• endogenous Switch mu intraswitch recombination is reduced compared to in wild-type mice
• 6-fold increase in IgE+ B cells in splenocyte cultures stimulated with LPS and IL4
• 4-fold increase in IgE+ cells in splenocyte cultures stimulated with LPS alone
• in unchallenged mice
• in mice in response to a variety of systemic and local challenges (TNP-OVA and infection with Nippostrongylus brasiliensis)
• 11-fold decrease in IgG1+ B cells in splenocyte cultures stimulated with LPS and IL4
• from splenocytes stimulated with LPS alone

hematopoietic system
• 10-fold reduction in class switch recombination in IgG1+ clones and 7-fold increase in IgE+ clones after LPS and IL4 stimulation
• class switch recombination is largely direct instead of sequential
• endogenous Switch mu intraswitch recombination is reduced compared to in wild-type mice
• 6-fold increase in IgE+ B cells in splenocyte cultures stimulated with LPS and IL4
• 4-fold increase in IgE+ cells in splenocyte cultures stimulated with LPS alone
• in unchallenged mice
• in mice in response to a variety of systemic and local challenges (TNP-OVA and infection with Nippostrongylus brasiliensis)
• 11-fold decrease in IgG1+ B cells in splenocyte cultures stimulated with LPS and IL4
• from splenocytes stimulated with LPS alone




Genotype
MGI:5553166
ht2
Allelic
Composition
Ightm1.1Vmd/Igh+
Genetic
Background
involves: C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ightm1.1Vmd mutation (0 available); any Igh mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• 3-fold reduction in class switch recombination in IgG1+ clones and 5-fold increase in IgE+ clones after LPS and IL4 stimulation

hematopoietic system
• 3-fold reduction in class switch recombination in IgG1+ clones and 5-fold increase in IgE+ clones after LPS and IL4 stimulation





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