When these Hif1atm3Rsjo floxed mice are bred to mice that express Cre recombinase, resulting offspring will have exon 2 deleted in the cre-expressing tissue(s). Mice from this strain can be crossed to strains expressing Cre recombinase in various tissues and may be useful for studies of the role of HIF transcription factors in von Hippel-Landau syndrome, adult erythropoiesis, inflammation, mammary epithelium, tumor angiogenesis, and lung development as examples.
Randall Johnson, UC-San Diego
These mice possess loxP sites on either side of exon 2 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 2 deleted in the cre-expressing tissue(s).
For example, when crossed to a strain expressing Cre recombinase in skeletal and cardiac muscle (see Stock No. 006475), this mutant mouse strain may be useful in studies of the metabolic control of muscle function.
When bred to a strain with the targeted null allele in von Hippel-Lindau syndrome homolog, Vhlh (Stock No. 004081) and a strain expressing Cre recombinase in liver (Stock No. 003574), this mutant mouse strain may be useful in the role of HIF transcription factors in von Hippel-Landau syndrome.
When crossed to a tamoxifen inducible strain with widespread Cre recombinase expression (see Stock No. 008085), this mutant mouse strain may be useful in studies of adult erythropoiesis.
When bred to a strain expressing Cre recombinase in the myeloid cell lineage (see Stock No. 004781 for example), this mutant mouse strain may be useful in studies of inflammation.
When bred to a strain expressing Cre recombinase in the mammary gland and other secretory tissues (see Stock No. 003551 for example), this mutant mouse strain may be useful in studies of mammary epithelium.
When bred to a strain expressing Cre recombinase in vascular endothelial cells (see Stock No. 008863 for example), this mutant mouse strain may be useful in studies of tumor angiogenesis.
When bred to a strain expressing Cre recombinase under the control of a tetracycline-responsive promoter element and a strain expressing a tetracycline-controlled activator protein in lung epithelial cells (see Stock No. 006234 and 006235 respectively), this mutant mouse strain may be useful in studies of lung development.
Similarly oriented loxP sites were placed upstream of exon 2 and flanking the neomycin resistance cassette (located in intron 2). The construct was electroporated into (129X1/SvJ x 129S1/Sv)F1-derived R1 embryonic stem (ES) cells. Correctly targeted ES cells were transiently transfected with a cre expression plasmid for the purpose of removing the selectable marker cassette. ES cells that had successfully undergone Cre-mediated recombination and no longer retained the cassette but did retain the loxP flanked exon 2 were injected in C57BL/6 blastocysts. The donating investigator reported that the resulting chimeric male animals were backcrossed to wildtype C57BL/6J mice (see SNP note below) for 12 generations. A speed congenic protocol was used for the first 6 generations of backcrossing, after which the mice were backcrossed an additional 6 generations to C57BL/6J (see SNP note below) prior to arriving at The Jackson Laboratory. The Y chromosome may not have been fixed to the C57BL/6J genetic background.
A 32 SNP (single nucleotide polymorphism) panel analysis, with 27 markers covering all 19 chromosomes and the X chromosome, as well as 5 markers that distinguish between the C57BL/6J and C57BL/6N substrains, was performed on the rederived living colony at The Jackson Laboratory Repository. While the 27 markers throughout the genome suggested a C57BL/6 genetic background, at least 2 of 5 markers that determine C57BL/6J from C57BL/6N were found to be segregating. These data suggest the mice sent to The Jackson Laboratory Repository were on a mixed C57BL/6J ; C57BL/6N genetic background.
|Allele Name||targeted mutation 3, Randall S Johnson|
|Allele Type||Targeted (Conditional ready (e.g. floxed), No functional change)|
|Allele Synonym(s)||+f; HIF-1alpha+f; HIF-1alphaF; HIF1af+; HIF1alphaflox; Hif-1alpha 2-lox; Hif1a2lox; Hif1afl; Hif1aloxP; Hif+f; Hiff; I.1-lox|
|Gene Symbol and Name||Hif1a, hypoxia inducible factor 1, alpha subunit|
|Gene Synonym(s)||AA959795; HIF-1-alpha; HIF-1A; HIF-1alpha; HIF1; HIF1-ALPHA; HIF1alpha; MOP1; PASD8; bHLHe78; expressed sequence AA959795|
|Strain of Origin||(129X1/SvJ x 129S1/Sv)F1-Kitl<+>|
|Molecular Note||A loxP site was inserted in intron 1 and a floxed neomycin resistance cassette was placed in intron 2. Exon 2 was left flanked by loxP sites after the neo cassette was excised by in vitro expression of cre recombinase.|
|Mutations Made By|| |
Randall Johnson, UC-San Diego
When maintaining a live colony, these mice are bred as homozygotes.
When using the HIF1αflox mouse strain in a publication, please cite the originating article(s) and include JAX stock #007561 in your Materials and Methods section.
|Heterozygous for Hif1a<tm3Rsjo>|
We will fulfill your order by providing at least two carriers for each strain ordered. The total number, sex, and genotypes provided will vary, although typically 8 or more animals are provided. Please check genotypes which will be recovered. While the genotypes of all animals produced will be communicated to you prior to scheduling shipment, the genotypes of animals provided may not reflect the mating scheme and genotypes described in the strain description. Animals are typically ready to ship in 11-14 weeks. If a second recovery is required to produce the minimum number of animals, then delivery time would increase to approximately 25 weeks. If we fail to produce animals of the correct genotype, you will not be charged. We cannot guarantee the reproductive success of mice shipped to your facility. If the mice are lost after the first three days (post-arrival) or do not produce progeny at your facility, a new order and fee will be necessary.
Cryorecovery to establish a Dedicated Supply for greater quantities of mice. Mice recovered can be used to establish a dedicated colony to contractually supply you mice according to your requirements. Price by quotation.
"MICE" means mouse strains, their progeny derived by inbreeding or crossbreeding, unmodified derivatives from mouse strains or their progeny supplied by The Jackson Laboratory ("JACKSON"). "PRODUCT(S)" means biological materials supplied by JACKSON, and their derivatives. "SERVICES" means projects conducted by JACKSON for other parties that may include but are not limited to the use of MICE or PRODUCTS. "RECIPIENT" means each recipient of MICE, PRODUCTS, or SERVICES provided by JACKSON including each institution, its employees and other researchers under its control. MICE or PRODUCTS shall not be: (i) used for any purpose other than internal research, (ii) sold or otherwise provided to any third party for any use, or (iii) provided to any agent or other third party to provide breeding or other services. Acceptance of MICE, PRODUCTS or SERVICES from JACKSON shall be deemed as agreement by RECIPIENT to these conditions, and departure from these conditions requires JACKSON’s prior written authorization.
MICE, PRODUCTS AND SERVICES ARE PROVIDED "AS IS". JACKSON EXTENDS NO WARRANTIES OF ANY KIND, EITHER EXPRESS, IMPLIED, OR STATUTORY, WITH RESPECT TO MICE, PRODUCTS OR SERVICES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OR ANY WARRANTY OF NON-INFRINGEMENT OF ANY PATENT, TRADEMARK, OR OTHER INTELLECTUAL PROPERTY RIGHTS.
In case of dissatisfaction for a valid reason and claimed in writing by a purchaser within ninety (90) days of receipt of, PRODUCTS or SERVICES, JACKSON will, at its option, provide credit or replacement for the PRODUCT received or the SERVICES provided; JACKSON makes no other representations and this shall be the exclusive remedy of the purchaser. Please note specific policy for live mice.
Consistent with the requirement for a written understanding regarding animal care and use, the JACKSON Animal Care and Use Committee will review the animal care and use protocol(s) associated with any SERVICES to be performed at JACKSON, and JACKSON shall have ultimate responsibility and authority for the care of animals while on site or in JACKSON custody.
In no event shall JACKSON, its trustees, directors, officers, employees, and affiliates be liable for any causes of action or damages, including any direct, indirect, special, or consequential damages, arising out of the provision of MICE, PRODUCTS, or SERVICES, including economic damage or injury to property and lost profits, and including any damage arising from acts or negligence on the part of JACKSON, its agents or employees. Unless prohibited by law, in purchasing or receiving MICE, PRODUCTS, or SERVICES from JACKSON, purchaser or recipient, or any party claiming by or through them, expressly releases and discharges JACKSON from all such causes of action or damages, and further agrees to defend and indemnify JACKSON from any costs or damages arising out of any third party claims.
MICE, PRODUCTS or SERVICES are to be used in a safe manner and in accordance with all applicable governmental rules and regulations.
The foregoing represents the General Terms and Conditions applicable to JACKSON’s MICE, PRODUCTS or SERVICES. In addition, special terms and conditions of sale of certain MICE, PRODUCTS, or SERVICES may be set forth separately in JACKSON web pages, catalogs, price lists, contracts, and/or other documents, and these special terms and conditions shall also govern the sale of these MICE, PRODUCTS and SERVICES by JACKSON, and by its licensees and distributors.
Acceptance of delivery of MICE, PRODUCTS or SERVICES shall be deemed agreement to these terms and conditions. No purchase order or other document transmitted by purchaser or recipient that may modify the terms and conditions hereof, shall be in any way binding on JACKSON, and instead the terms and conditions set forth herein, including any special terms and conditions set forth separately, shall govern the sale of MICE, PRODUCTS or SERVICES by JACKSON.