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1 When indicated as "assessed by MMRRC" ("YES"), please note that the information presented on this strain is to the best of our knowledge correct and up-to-date at the the MMRRC Distribution Center assigned to maintain and distribute this strain. This information is subject to change due to breeding, maintenance, and other actions. Please direct any questions on the information presented in this table to the MMRRC Distribution Center.
2 If an assessment has not been performed by the MMRRC (as indicated by "NO"), investigators may request specific testing for a fee. Requests should be submitted directly to the MMRRC Distribution Center assigned to the management, archiving, and distribution of the strain. A full listing of available testing and analytical services is available at https://www.mmrrc.org/about/services.php.
3 This information may or may not apply to each individual engineered allele (e.g., Cre, FlpO) present in the strain.
4 Recovery refers to thawing, in vitro fertilization (IVF), and/or embryo culture leading to live offspring.
Trp53 R334H knock-in mice display no overt phenotype under baseline conditions. Heterozygous and homozygous mutant mice develop normally, similar to wild-type mice. The R334H mutation does not significantly alter lifespan, spontaneous cancer incidence, or cancer spectrum compared with wild-type mice, although a trend toward fewer female homozygous mice than expected was reported.
Conditional phenotype: Following diethylnitrosamine (DEN) exposure, mice exhibit increased susceptibility to liver carcinogenesis in a mutant allele dose-dependent manner. Mutant mice develop increased numbers and sizes of liver tumors, and homozygous mice have significantly increased liver weight relative to body weight and an increased incidence of liver carcinomas compared with wild-type mice.
Homozygous mice exposed to DEN exhibited increased DNA damage but decreased cell-cycle regulation in the liver.
The R334H mutation also results in reduced p53 oligomerization. Homozygous mutant liver tissue shows decreased p53 tetramer and dimer formation and increased monomer formation following DEN treatment, with significantly reduced tetramers also observed following doxorubicin treatment. Following whole-body γ-irradiation, mutant p53 shows reduced binding to the p53 response element of p21 and reduced induction of p21 mRNA in a mutant allele dose-dependent manner.
To request gene-specific and other genotyping services for a strain, please contact the distribution MMRRC Center for more information.
The MMRRC has developed a Genetic Quality Control pipeline using the MiniMUGA array to provide additional information to identify and validate genetic backgrounds of MMRRC strains. For more information on whether genetic background data is available, please contact MMRRC_GeneticQC@med.unc.edu. Note: that MiniMUGA genetic background data is not available on all strains, but can be ordered if desired.
Park JH, Li J, Starost MF, Liu C, Zhuang J, Chen J, Achatz MI, Kang JG, Wang PY, Savage SA, Hwang PM. Mouse Homolog of the Human TP53 R337H Mutation Reveals Its Role in Tumorigenesis. Cancer Res. 2018 Sep 15;78(18):5375-5383. doi: 10.1158/0008-5472.CAN-18-0016. Epub 2018 Jul 24. (Medline PMID: 30042151)
Disclaimer: If MMRRC Strain Genetic Quality Control (GQC; based on MiniMUGA genotyping and analysis) has been completed for this strain, the information might differ from the genetic background information provided by the submitter. MiniMUGA genetic analysis is done on a strain's tissue samples taken when archived by or ordered from the assigned MMRRC Center.
Limited quantities of breeder mice (up to 2 males and 2 females or 4 mice) per investigator per month are available from a live colony, usually available to ship in under 12 weeks. Larger quantities may be available, please contact the distributing center directly at csmmrrc@jax.org for more details.
Cryopreserved material may be available upon request, please inquire to csmmrrc@jax.org for more information.
A Commercial License Agreement from the Submitter is required for for-profit entities to use this strain. For more information, please contact Vincent Kolesnitchenko.
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 Submitter is required for for-profit entities to use this strain. For more information, please contact Vincent Kolesnitchenko
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.
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.
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