These c-IAP2H570A mice contain a H570A mutation in exon 9 the Birc3 gene resulting in a lack of E3 ubiquitin-protein ligase activity in B and T lymphocytes.
Jonathan D Ashwell, Nat Cancer Inst/Nat Inst Health NCI/NIH
Genetic Background | Generation |
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Allele Type | Gene Symbol | Gene Name |
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Targeted (Not Applicable) | Birc3 | baculoviral IAP repeat-containing 3 |
These c-IAP2H570A mice contain the amino acid mutation H570A in exon 9 of the baculoviral IAP repeat-containing 2 (Birc3) gene. C-IAP2 (Cellular Inhibitor of Apoptosis 2) acts as an E3 ubiquitin-protein ligase which regulates non-canonical NF-kappa-B signaling, caspase activity, apoptosis, inflammatory signaling and immunity, mitogenic kinase signaling, cell proliferation, cell invasion, and metastasis. This H570A mutation is in the RING domain, inactivating the E3 ubiquitin-protein ligase activity. c-IAP2H570A protein levels are increased due to lack of autoubiquitination and degradation and exert a dominant negative effect on c-IAP1 E3 activity. As a result, c-IAP2H570A cells have constitutively active non-canonical NF-kappa-B resulting in high levels of p52 at rest. c-IAP2H570A mice have enlarged gut associated lymphoid tissue (GALT), marginal zone B cell hyperplasia, increased B cell survival, and T cell-costimulation independence.
A targeting construct was designed to insert a loxP-flanked neomycin (neo) resistance cassette downstream of exon 9 of the baculoviral IAP repeat-containing 3 (Birc3) gene. A point mutation was introduced in exon 9, encoding a RING domain, resulting in the H570A mutation. This targeting construct was electroporated into 129 x C57BL/6 embryonic stem (ES) cells and correctly targeted ES cells were injected into blastocysts. The resulting chimeric offspring were bred to C57BL/6 mice for at least six generations. Upon arrival at The Jackson Laboratory, mutant mice were bred to C57BL/6NJ mice (Stock No. 005304) for at least one generation to establish the colony.
Allele Name | targeted mutation 1, Jonathan D Ashwell |
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Allele Type | Targeted (Not Applicable) |
Allele Synonym(s) | c-IAP2H570A |
Gene Symbol and Name | Birc3, baculoviral IAP repeat-containing 3 |
Gene Synonym(s) | |
Strain of Origin | 129 x C57BL/6 |
Chromosome | 9 |
Molecular Note | Exon 9 was replaced with one in which nucleotide substitutions result in the amino acid substitution of alanine for histidine at position 570 (H570A). A floxed neo cassette was inserted downstream of the modified exon 9. |
When maintaining a live colony, homozygous mice may be bred together.
When using the c-IAP2H570A mouse strain in a publication, please cite the originating article(s) and include JAX stock #023316 in your Materials and Methods section.
Facility Barrier Level Descriptions
Service/Product | Description | Price |
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Heterozygous for Birc3<tm1Jda> |
Frozen Mouse Embryo | B6.Cg-Birc3<tm1Jda>/J Frozen Embryo | $2595.00 |
Frozen Mouse Embryo | B6.Cg-Birc3<tm1Jda>/J Frozen Embryo | $2595.00 |
Frozen Mouse Embryo | B6.Cg-Birc3<tm1Jda>/J Frozen Embryo | $3373.50 |
Frozen Mouse Embryo | B6.Cg-Birc3<tm1Jda>/J Frozen Embryo | $3373.50 |
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