Strain Name:
B6.129S-Fgf23tm1Sliu/Mmjax
Stock Number:
036748-JAX
Citation ID:
RRID:MMRRC_036748-JAX
Other Names:
B6.129-Fgf23, Fgf23 deficient eGFP reporter mouse

Strain Information

Fgf23tm1Sliu
Name: fibroblast growth factor 23; targeted mutation 1, Shiguang Liu
Synonyms: FGF23-eGFP+, Fgf23-
Type: Allele
Species: Mus musculus (mouse)
Chromosome: 6
Alteration at locus: Knockout
Fgf23
Name: fibroblast growth factor 23
Type: Gene
Species: Mouse
Chromosome: 6
Alteration at locus: Knockout
NCBI: 64654
HGNC: HGNC:3680
Homologene: 10771
Genetic Alterations
The Fgf23-deficient/reporter mouse model was created by knocking in an eGFP construct following the ATG in exon 1 of the Fgf23 gene. The exon 1 of Fgf23 was replaced with eGFP that was driven by endogenous Fgf23 promoter.
Genotype Determination
ES Cell Line
EF1 derived from 129S/SvEv x C57BL/6
Phenotype

Homozygous: Fgf23−/− mice displayed growth retardation and impaired survival, evidenced by smaller body size and lower body weight during postnatal development. Fgf23−/− mice had hyperphosphatemia and impaired skeletogenesis, and reverses hypophosphatemia in Phex-deficient mice.

Heterozygous: Fgf23+/− mice were indistinguishable from wild-type mice in gross appearance and body measurements. Heterozygous Fgf23+/− mice had normal skeletal development postnatally and normal levels of Fgf23, serum phosphate, calcium, 1,25(OH)2D3, and PTH levels that did not differ from wild-type mice.

Mammalian Phenotype Terms
Allelic Composition: Fgf23tm1Sliu/Fgf23tm1Sliu (Genetic Background: involves: 129S/SvEv * C57BL/6 )

MeSH Terms
  • Animals
  • Disease Models, Animal
  • Familial Hypophosphatemic Rickets/genetics
  • Fibroblast Growth Factors/metabolism
  • Gene Expression Regulation
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Models, Biological
  • Mutation
  • Oligonucleotide Array Sequence Analysis
  • Osteoblasts/metabolism
  • Osteocytes/metabolism
  • PHEX Phosphate Regulating Neutral Endopeptidase/metabolism
  • Signal Transduction
  • beta Catenin/metabolism
  • Body Weight/physiology
  • Bone Density/physiology
  • Bone Marrow Cells/metabolism
  • Bone Marrow Cells/physiology
  • Calcium/blood
  • Cholecalciferol/blood
  • Female
  • Femur/metabolism
  • Femur/physiology
  • Fibroblast Growth Factor-23
  • Fibroblast Growth Factors/blood
  • Fibroblast Growth Factors/genetics
  • Green Fluorescent Proteins/biosynthesis
  • Green Fluorescent Proteins/genetics
  • Hypophosphatemia, Familial/blood
  • Hypophosphatemia, Familial/genetics
  • Hypophosphatemia, Familial/metabolism
  • Membrane Glycoproteins/genetics
  • Membrane Glycoproteins/metabolism
  • Metalloendopeptidases/genetics
  • Metalloendopeptidases/metabolism
  • Mice, Knockout
  • Microscopy, Fluorescence
  • Osteocytes/physiology
  • PHEX Phosphate Regulating Neutral Endopeptidase
  • Parathyroid Hormone/blood
  • Phosphorus/blood
  • Promoter Regions, Genetic
Strain Development
Targeted gene mutation was generated in strain 129/SvEvBrd-derived embryonic stem (ES) cells. The chimeric mice are bred to C57BL/6J albino mice to generate F1 heterozygous animals. These progeny are intercrossed to generate F2 wild-type, heterozygous, and homozygous mutant progeny. Mice were backcrossed with C57BL/6J for at least 5 generations.

Note: In 2013, 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 first generation rederived living colony at The Jackson Laboratory Repository. This revealed 1/27 marker on chromosome 1 that was not fixed for C57BL/6 allele-type (e.g., still segregating for 129 allele-type markers) in all mice tested. In addition, 2/5 markers that determine C57BL/6J from C57BL/6N were also found to be segregating in some animals (one each on chromosomes 15 and 19; note that these markers are the same for C57BL/6N and 129). Taken together, these data suggest the mice have some 129 regions still present after backcrossing onto C57BL/6J.
Suggested Control Mice
Wild-type littermates or C57BL/6J mice
MMRRC Genetic QC Summary
The MMRRC Centers have developed a genetic QC pipeline using MiniMUGA array genotyping to provide additional information on strain backgrounds for MMRRC congenic and inbred strains. For more information on when data may be available, or to request genotyping for a strain of interest, please contact csmmrrc@jax.org. Older strains may not have this information.
  • Cardiovascular
  • Cell Biology
  • Developmental Biology
  • Endocrine Deficiency
  • Immunology and Inflammation
  • Metabolism
  • Models for Human Disease
    • X-linked hypophosphatemia (XLH)
  • Neurobiology
  • Research Tools
Donor
Liu Shiguang, Ph.D., University of Kansas Medical Center.
L. Darryl Quarles, M.D., University of Tennessee Health Science Center.
Zhousheng Xiao, University of Tennessee Health Science Ctr.
Primary Reference

Liu S, Zhou J ,Tang W, Menard R, Feng JQ, Quarles LD. Pathogenic Role of Fgf23 in Dmp1 Null Mice. Am J Physiol Endocrinol Metab. 2006 Jul;291(1):E38-49. Epub 2006 Jan 31. (Medline PMID:16449303).

Liu S, Tang W, Fang J, Ren J, Li H, Xiao Z, Quarles LD. Novel Regulators of Fgf23 Expression and Mineralization in Hyp Bone. Mol Endocrinol. 2009 Sep;23(9):1505-18. Epub 2009 Jun 25. (Medline PMID: 19556340).

Colony and Husbandry Information

Cryo-recovered strains distributed by the MMRRC at JAX are shipped to the customer from the Pathogen & Opportunistic-Free Animal Room G200 - see https://www.jax.org/jax-mice-and-services/customer-support/customer-service/animal-health/health-status-reports.

Mice recovered from a cryo-archive will have health surveillance performed on recipient females. Health reports will be provided prior to shipment. If you require additional health status information, please email csmmrrc@jax.org.
Coat Color
Black
MMRRC Breeding System
Backcross or Sib-mating
Breeding Scheme(s)
  • C57BL/6J females x Heterozygous male or reciprocal mating
  • Heterozygous female x Heterozygous male littermate
Generation
N5+
Overall Breeding Performance
Good
Viability and Fertility: Female Male Comments
Homozygotes are viable: Yes Yes
Homozygotes are fertile: Yes Yes
Heterozygotes are fertile: Yes Yes
Age Reproductive Decline: 6 months 6 months
Average litter size
5-9
Recommended wean age
3 weeks

Order Request Information

Limited quantities of breeder mice (recovered litter) are available from a cryoarchive; recovered litter usually available to ship in 3 to 4 months.

Cryopreserved material may be available upon request, please inquire to csmmrrc@jax.org for more information.

Distribution of this strain requires submission of the MMRRC Conditions of Use (COU). A link to the COU web form will be provided via email after an order has been placed; the form should be completed then or the email forwarded to your institutional official for completion.

Additional charges may apply for any special requests. Shipping costs are in addition to the basic distribution/resuscitation fees. Information on shipping costs and any additional charges will be provided by the supplying MMRRC facility.

Click button to Request this one strain. (Use the MMRRC Catalog Search to request more than one strain.)
MMRRC Item # Description Distribution Fee / Unit (US $)
*Shipping & Handling not included*
Units Notes
036748-JAX-RESUS Litter recovered from cryo-archive $2,022.00 / $2,022.00
Non-Profit / For-Profit
Litter Recovered litter4; additional fees for any special requests.
Cryopreserved material may be available upon request, please inquire to csmmrrc@jax.org for more information.

1 The distribution fee covers the expense of rederiving mice from a live mouse; you will receive the resulting litter. The litter will contain at minimum one mutant carrier; the actual number of animals and the gender and genotype ratios will vary. (Typically, multiple breeder pairs can be established from the recovered litter.) Prior to shipment, the MMRRC will provide information about the animals recovered. If you anticipate or find that you need to request specific genotypes, genders or quantities of mice in excess of what is likely from a resuscitated litter, you may discuss available options and pricing with the supplying MMRRC facility.

2 An aliquot contains a sufficient number of embryos (in one or more vials or straws and based on the transfer success rate of the MMRRC facility) to transfer into one to three recipients. The MMRRC makes no guarantee concerning embryo transfer success experienced in the recipient investigator's laboratory. Neither gender nor genotype ratios are guaranteed.

3 An aliquot is one straw or vial with sufficient sperm to recover at least one litter of mice, as per provided protocols, when performed at the MMRRC facility. The MMRRC makes no guarantee concerning the success of these procedures when performed outside the MMRRC facilities.

4 The distribution fee covers the expense of resuscitating mice from the cryo-archive; you will receive the resulting litter. The litter will contain at minimum one mutant carrier; the actual number of animals and the gender and genotype ratios will vary. (Typically, multiple breeder pairs can be established from the recovered litter.) Prior to shipment, the MMRRC will provide information about the animals recovered. If you anticipate or find that you need to request specific genotypes, genders or quantities of mice in excess of what is likely from a resuscitated litter, you may discuss available options and pricing with the supplying MMRRC facility.

To request material from the MMRRC: Please fill out our on-line request form (accessible from the catalog search results page, or click the Request this Strain button in the fees section). If you have questions or need assistance completing this form, you may call Customer Service at (800) 910-2291 (in USA or Canada) or (530) 757-5710 (international calls). Before you call, please have with you: the MMRRC item number, quantity needed, Bill-to and Ship-to contact information.