These floxed mutant mice possess loxP sites flanking exon 4 of the transforming growth factor, beta receptor II (Tgfbr2) (commonly referred to as TβRII) targeted gene. This strain may be useful for studying the cellular and mechanical role of TGF-β in regulating development, hematopoiesis, wound healing, and immune function.
Stefan Karlsson, Lund University Hospital
Genetic Background | Generation |
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F?+F24
|
Allele Type | Gene Symbol | Gene Name |
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Targeted (Conditional ready (e.g. floxed), No functional change) | Tgfbr2 | transforming growth factor, beta receptor II |
These TβRII floxed mutant mice possess loxP sites flanking exon 4 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 4 deleted in cre-expressing tissues. This strain may be useful for studying the cellular and mechanical role of TGF-β in regulating development, hematopoiesis, wound healing, and immune function.
For example, when crossed to a strain expressing Cre recombinase in the neural tube, midbrain and dorsal spinal cord (see Stock No. 007807), this mutant mouse strain may be useful in studies of DiGeorge syndrome.
For example, when crossed to a strain expressing interferon inducible Cre recombinase (see Stock No. 003556), this mutant mouse strain may be useful in studies of autoimmune inflammation.
A targeting vector was designed to insert a loxP-flanked neomycin resistance (neo) cassette upstream of exon 4, and a single loxP site downstream of exon 4 of the transforming growth factor beta (TGF-β) type II receptor (Tgfbr2) gene. The construct was electroporated into (129X1/SvJ x 129S1/Sv)F1-Kitl+-derived R1 embryonic stem (ES) cells. Correctly targeted ES cells were transiently transfected with a pIC-Cre expression plasmid to delete the neo cassette. Resulting ES cells contained multiple gene rearrangments; intact floxed-exon 4, intact floxed-neo cassette, or excision of both exon 4 and the neo cassette. Correctly targeted ES cells, containing only the floxed-exon 4, were injected into C57BL/6 blastocysts and resulting chimeric males were bred with C57BL/6 females. Resulting offspring were bred to establish a colony of TβRII mice. Upon arrival, mice were bred to C57BL/6J inbred mice (Stock No. 000664) for at least one generation to establish the colony.
Allele Name | targeted mutation 1, Stefan Karlsson |
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Allele Type | Targeted (Conditional ready (e.g. floxed), No functional change) |
Allele Synonym(s) | floxed-TbetaRII; T-Beta-RII flox; Tgfbr2fl; Tgfbr2fl |
Gene Symbol and Name | Tgfbr2, transforming growth factor, beta receptor II |
Gene Synonym(s) | |
Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl+ |
Chromosome | 9 |
Molecular Note | Exon 4 was left flanked by single loxP sites in introns 3 and 5 after a floxed neo cassette was excised via cre-mediated recombination in ES cells. |
Mutations Made By | Stefan Karlsson, Lund University Hospital |
When maintaining a live colony mice homozygous for the floxed allele may be bred together.
When using the TβRII mouse strain in a publication, please cite the originating article(s) and include JAX stock #012603 in your Materials and Methods section.
Service/Product | Description | Price |
---|---|---|
Heterozygous or wildtype for Tgfbr2<tm1Karl> |
Frozen Mouse Embryo | B6;129-Tgfbr2<tm1Karl>/J Frozen Embryo | $2595.00 |
Frozen Mouse Embryo | B6;129-Tgfbr2<tm1Karl>/J Frozen Embryo | $2595.00 |
Frozen Mouse Embryo | B6;129-Tgfbr2<tm1Karl>/J Frozen Embryo | $3373.50 |
Frozen Mouse Embryo | B6;129-Tgfbr2<tm1Karl>/J Frozen Embryo | $3373.50 |
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The Jackson Laboratory has rigorous genetic quality control and mutant gene genotyping programs to ensure the genetic background of JAX® Mice strains as well as the genotypes of strains with identified molecular mutations. JAX® Mice strains are only made available to researchers after meeting our standards. However, the phenotype of each strain may not be fully characterized and/or captured in the strain data sheets. Therefore, we cannot guarantee a strain's phenotype will meet all expectations. To ensure that JAX® Mice will meet the needs of individual research projects or when requesting a strain that is new to your research, we suggest ordering and performing tests on a small number of mice to determine suitability for your particular project. We do not guarantee breeding performance and therefore suggest that investigators order more than one breeding pair to avoid delays in their research.
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