Phenotypes associated with this allele
Allelic Composition |
Ightm2Cgn/Igh+
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Genetic Background |
involves: 129P2/OlaHsd * BALB/c * C57BL/Ka |
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Find Mice |
Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ightm2Cgn mutation
(1 available);
any
Igh mutation
(43 available)
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immune system
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• reduced number of CD43+ B cell progenitors; however, the overall number of splenic B cells is similar to wild-type
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hematopoietic system
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• reduced number of CD43+ B cell progenitors; however, the overall number of splenic B cells is similar to wild-type
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Allelic Composition |
Ightm2Cgn/Igh+
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|
Genetic Background |
involves: 129P2/OlaHsd * C57BL/6 |
|
Find Mice |
Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ightm2Cgn mutation
(1 available);
any
Igh mutation
(43 available)
|
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hematopoietic system
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• the percentage of B cells expressing lambda light chain is about 2 times higher than in wild-type mice
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immune system
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• the percentage of B cells expressing lambda light chain is about 2 times higher than in wild-type mice
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Find Mice |
Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ightm2Cgn mutation
(1 available);
any
Igh mutation
(43 available)
Ightm4.1Fwa mutation
(0 available);
any
Igh mutation
(43 available)
|
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hematopoietic system
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• the frequency of recombination is shifted and more non-productive rearrangements are produced
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immune system
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• the frequency of recombination is shifted and more non-productive rearrangements are produced
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Allelic Composition |
Ightm2Cgn/Ightm3Cgn
|
|
Genetic Background |
involves: 129P2/OlaHsd * BALB/c * C57BL/6 * C57BL/Ka |
|
Find Mice |
Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ightm2Cgn mutation
(1 available);
any
Igh mutation
(43 available)
Ightm3Cgn mutation
(0 available);
any
Igh mutation
(43 available)
|
|
|
immune system
|
• reduced number of CD43+ B cell progenitors; however, the overall number of splenic B cells is similar to wild-type
|
hematopoietic system
|
• reduced number of CD43+ B cell progenitors; however, the overall number of splenic B cells is similar to wild-type
|
Allelic Composition |
Ightm1Cgn/Ightm2Cgn
|
|
Genetic Background |
involves: 129P2/OlaHsd * BALB/c * C57BL/Ka |
|
Find Mice |
Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ightm1Cgn mutation
(0 available);
any
Igh mutation
(43 available)
Ightm2Cgn mutation
(1 available);
any
Igh mutation
(43 available)
|
|
|
immune system
|
• reduced number of CD43+ B cell progenitors; however, the overall number of splenic B cells is similar to wild-type
|
hematopoietic system
|
• reduced number of CD43+ B cell progenitors; however, the overall number of splenic B cells is similar to wild-type
|
immune system
N |
• mice injected with poly(I)poly(C) exhibit normal B cell development
|
Allelic Composition |
Ightm2Cgn/Igh+ Igktm1Rsky/Igk+
|
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Genetic Background |
either: (involves: 129P2/OlaHsd) or (involves: 129P2/OlaHsd * BALB/c) |
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immune system
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• about 90% of B cells are positive for the B1-8 heavy chain
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• the CD43- sIgM- pre B cell compartment is virtually absent
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hematopoietic system
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• about 90% of B cells are positive for the B1-8 heavy chain
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• the CD43- sIgM- pre B cell compartment is virtually absent
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hematopoietic system
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• B cells have about a 2-fold increase in class switch recombination to IgG1
|
immune system
|
• B cells have about a 2-fold increase in class switch recombination to IgG1
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immune system
|
• class switching to IgG1 is 20% to 50% of wild-type
• class switching to IgG3 is 50% of wild-type
• IgH class switching is reduced compared to in wild-type B cells
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cellular
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• B cell stimulated with anti-CD40 and IL4 exhibit metaphase chromosome breaks unlike similarly treated wild-type cells
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hematopoietic system
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• class switching to IgG1 is 20% to 50% of wild-type
• class switching to IgG3 is 50% of wild-type
• IgH class switching is reduced compared to in wild-type B cells
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hematopoietic system
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• class switching to IgG1 in B cells stimulated with anti-CD40 plus IL4 are 50% of wild-type
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immune system
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• class switching to IgG1 in B cells stimulated with anti-CD40 plus IL4 are 50% of wild-type
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immune system
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• mice carrying a rearranged IgH (heavy chain) variable region from a B1-8 clone and homozygous for Xrcc6tm1Fwa exhibit small but detectable populations of peripheral kappa-light chain expressing IgM+ B cells with functional light chain rearrangements; this indicates that some light chain rearrangment can occur in Xrcc6-deficient mice and the defect in B cell differentiation is "leaky"
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hematopoietic system
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• mice carrying a rearranged IgH (heavy chain) variable region from a B1-8 clone and homozygous for Xrcc6tm1Fwa exhibit small but detectable populations of peripheral kappa-light chain expressing IgM+ B cells with functional light chain rearrangements; this indicates that some light chain rearrangment can occur in Xrcc6-deficient mice and the defect in B cell differentiation is "leaky"
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Find Mice |
Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Arhgef1tm1.1Rmt mutation
(0 available);
any
Arhgef1 mutation
(73 available)
Ightm2Cgn mutation
(1 available);
any
Igh mutation
(43 available)
Rr158tm1Cgn mutation
(0 available);
any
Rr158 mutation
(0 available)
|
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immune system
|
• increase in the proportion of cells that migrate towards high sphingosine 1-phosphate (S1P) concentrations
• reduction in migratory response towards S1P induced by LPS treatment is decreased compared to wild-type
• immunization with a low dose of T cell dependent antigen (NP-CG) fails to suppress responsiveness to S1P unlike in wild-type mice; however, treatment with a high concentration of antigen does reduce S1P responsiveness
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hematopoietic system
|
• increase in the proportion of cells that migrate towards high sphingosine 1-phosphate (S1P) concentrations
• reduction in migratory response towards S1P induced by LPS treatment is decreased compared to wild-type
• immunization with a low dose of T cell dependent antigen (NP-CG) fails to suppress responsiveness to S1P unlike in wild-type mice; however, treatment with a high concentration of antigen does reduce S1P responsiveness
|
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Find Mice |
Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fnip1tm1.2Baba mutation
(0 available);
any
Fnip1 mutation
(59 available)
Ightm2Cgn mutation
(1 available);
any
Igh mutation
(43 available)
|
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hematopoietic system
|
• absence of peripheral B cells
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immune system
|
• absence of peripheral B cells
|
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Find Mice |
Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fnip1Gt(RRM154)Byg mutation
(0 available);
any
Fnip1 mutation
(59 available)
Ightm2Cgn mutation
(1 available);
any
Igh mutation
(43 available)
|
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hematopoietic system
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• absence of peripheral B cells
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immune system
|
• absence of peripheral B cells
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hematopoietic system
|
• B cells show defects in CSR to IgG1 and IgG3 ranging from 30%?70% of controls
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immune system
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• B cells show defects in CSR to IgG1 and IgG3 ranging from 30%?70% of controls
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