Strain Name:
C57BL/6J-Npr2em1Laj/Mmjax
Stock Number:
071304-JAX
Citation ID:
RRID:MMRRC_071304-JAX
Other Names:
HA-NPR2

Strain Information

Npr2em1Laj
Name: natriuretic peptide receptor 2; endonuclease-mediated mutation 1, Laurinda Jaffe
Synonyms: HA-NPR2
Type: Allele
Species: Mus musculus (mouse)
Chromosome: 4
Alteration at locus: Knock-In
Npr2
Name: natriuretic peptide receptor 2
Synonyms: cn, guanylyl cyclase-B, pwe
Type: Gene
Species: Mouse
Chromosome: 4
Alteration at locus: Knock-In
NCBI: 230103
HGNC: HGNC:7944
Homologene: 2970
Genetic Alterations
HA-NPR2 knock-in mice carry a hemagglutinin (HA) tag inserted into the N-terminal of the Npr2 (natriuretic peptide receptor 2) gene. This strain may be used as a tool for understanding signaling in mouse preovulatory follicles and bone growth regulation.
Genotype Determination
ES Cell Line
Not applicable
Phenotype

NPR2 (natriuretic peptide receptor 2) is the primary receptor for C-type natriuretic peptide (CNP), which, when bound to ligand increases guanylyl cyclase activity. NPR2 is involved in the regulation of bone growth and meiosis in oocytes; it is expressed in ovarian follicles, chondrocytes, adrenal, kidneys, lungs, hearts, testis, and epididymis tissues.

HA-LHR knock-in mice carry a hemagglutinin (HA) tag inserted into the N-terminal of the Npr2 gene. Mice homozygous for the mutation are viable and fertile with no obvious phenotype. In studies of ovary and bone growth plate, both of which depend on NPR2 for their function, HA-NPR2 mice show no phenotypic differences from wildtype. Immunofluorescence and immunogold labelling in the ovaries of HA-LHR mice can be used to localize the LHR protein. The donating investigator used Western blotting to characterize chondrocytes, adrenals, kidney, lung, heart, testis, and epididymis tissues.

MeSH Terms
  • Animals
  • Cyclic GMP/metabolism
  • Female
  • Mice
  • Microscopy, Electron, Scanning
  • Ovarian Follicle/enzymology
  • Ovarian Follicle/ultrastructure
  • Receptors, Atrial Natriuretic Factor/metabolism
  • Receptors, LH/metabolism
Strain Development
CRISPR/Cas9 endonuclease-mediated genome editing was used to insert a 9 amino acid (YPYDVPDYA) hemagglutinin (HA) tag followed by a 3 amino acid spacer right after alanine 22 in the N-terminus of the Npr2 locus on chromosome 4. A single guide RNA (AGC GTC AGG TTC CGT GCC CC), cas9 endonuclease and an ssDNA donor were electroporated into C57BL/6J-derived zygotes. Embryos were transferred to pseudopregnant females, and correctly targeted pups were bred to C57BL/6J mice for germline transmission and maintained on the C57BL/6J background. N1 mice were identified by PCR and/or sequencing. Upon arrival, mice were bred to C57BL/6J for at least one generation to establish the colony.
Suggested Control Mice
C57BL/6J wildtype
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
  • Neurobiology
  • Reproduction
Donor
Laurinda Jaffe, Ph.D., University of Connecticut Health Center.
Primary Reference

Baena V, Owen CM, Uliasz TF, Lowther KM, Yee SP, Terasaki M, Egbert JR, Jaffe LA. Cellular Heterogeneity of the Luteinizing Hormone Receptor and Its Significance for Cyclic GMP Signaling in Mouse Preovulatory Follicles. Endocrinology. 2020 Jul 1;161(7):bqaa074. doi: 10.1210/endocr/bqaa074. (Medline PMID: 32384146)

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
Eye
Black
MMRRC Breeding System
Sib-mating
Generation
N/A
Overall Breeding Performance
Excellent
Viability and Fertility: Female Male Comments
Homozygotes are viable: Yes Yes
Homozygotes are fertile: Yes Yes
Heterozygotes are fertile: Yes Yes
Age Reproductive Decline: Undetermined Undetermined
Average litter size
Variable
Recommended wean age
3 Weeks
Average Pups Weaned
Variable

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.

A Commercial License Agreement from the Donor is required for for-profit entities to use this strain. For more information, please contact Technology Transfer Office.

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.

A Commercial License Agreement from the Donor is required for for-profit entities to use this strain. For more information, please contact Technology Transfer Office

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
071304-JAX-SPERM Cryo-preserved spermatozoa $437.00 / $437.00
Non-Profit / For-Profit
Aliquot Approximate quantity3
071304-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.