Overview

Also Known As: Brown cd, C57 Brown, BR

C57BR/cdJ mice show variable incidence of spinal cord epidermoid cysts, primarily in the leptomeninges adjacent to the posterior horn and lateral/anterior columns. Mice of this strain show several behavioral differences from many other inbred strains.

Genetic overview

Genetic Background	Generation

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Research Applications

Metabolism Research
Research Tools
Neurobiology Research
Sensorineural Research
Cardiovascular Research

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Base Price

Starting at:

$2,595.00 Domestic price Cryo Recovery

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Details

Important Note

This strain is homozygous for Cdh23^ahl, the age related hearing loss 1 mutation, which on this background results in progressive hearing loss.

Detailed Description

C57BR/cdJ mice develop early-onset hearing loss that is moderate at seven weeks of age, is severe by 20 weeks and progresses with increasing age (Henry 1982; Zheng et al. 1999). The loss is greatest in the higher frequency range; at seven weeks, Henry reported 50% of the mice showed no 64 kHz auditory brainstem response (ABR), and by 100 days both the 2 kHz and 32 kHz responses were absent. Both labs found this strain to be least vulnerable to loss of the16 kHz response, which persisted through 200 days but was lost before 300 days of age (Henry 1982). C57BR/cdJ did not exhibit aberrant ABR wave patterns, suggesting that the hearing loss results from defects of the peripheral, rather than central auditory system (Zheng et al. 1999). F1 hybrid progeny from matings with the good-hearing strain CAST/Ei exhibited good hearing even at advanced ages, indicating that the allele(s) responsible for hearing loss in C57BR/cdJ are recessive. An allelism test between C57BR/cdJ and NOD.NON-H2^nb1 showed the mutations responsible for hearing loss in these two strains not to be allelic; NOD.NON-H2^nb1 shares the deafness allele(s) of A/J, ALR/LtJ and DBA/2J (Zheng et al. 1999).

C57BR/cdJ mice showed variable incidence of spinal cord epidermoid cysts, primarily in the leptomeninges adjacent to the posterior horn and lateral/anterior columns. The cysts comprised "a whorled mass of keratinized cells surrounded by polygonal epithelial cells," some of which contained keratohyaline granules. No basal cells were present. (Stroop 1884).

EEG studies demonstrated that although C57BR/cd mice spend less time sleeping, a greater proportion of their sleep time is spent in paradoxical sleep (PS)(equivalent to human rapid eye movement, or REM sleep) than is true of mice of six other inbred strains tested (Pagel et al. 1973). Whereas C57BL/6 mice learn slowly, gradually improving their performance at a rate dependent upon the number of training trials, C57BR/cd mice fail to improve during the initial training, but show improvement after a delay of at least eight to 10 hours; overall, C57BR/cd mice are fast learners. PS deprivation has no effect on either discriminatory or active avoidance learning in C57BL/6, BALB/c or SEC mice. In contrast, PS deprivation for 24 hours impairs learning of discriminatory tasks by C57BR/cd mice, and six hours' PS deprivation immediately following the initial training abolishes their time-dependent improvement in avoidance learning. Continuous PS deprivation causes C57BR/cd mice to learn at the same rate as C57BL/6 mice. Interestingly, although BALB/c mice show a time-delayed improvement in learning acquisition for an appetitive task similar to that of C57BR/cd mice for avoidance learning, neither C57BR/cd nor C57BL/6 exhibit show such time-dependent improvement in appetitive learning (Kitahama et al. 1981 and references cited therein).

Development

Created by C.C. Little from a cross that gave rise to C57BL, C57BR/a, and C57L. Black and brown lines were separated in the first generation. Subline cd was established in generation 13 from a cross of two brown lines, one of which had previously given rise to C57BR/a. Obtained by The Jackson Laboratory from W. E. Heston at F66.

Control Suggestions

None Available

Additional Information

Considerations for Choosing Controls

Selected References

Timmermans S; Van Montagu M; Libert C. 2017. Complete overview of protein-inactivating sequence variations in 36 sequenced mouse inbred strains. Proc Natl Acad Sci U S A 114(34):9158-9163PubMed: 28784771 MGI: J:244295
Doran AG; Wong K; Flint J; Adams DJ; Hunter KW; Keane TM. 2016. Deep genome sequencing and variation analysis of 13 inbred mouse strains defines candidate phenotypic alleles, private variation and homozygous truncating mutations. Genome Biol 17(1):167PubMed: 27480531 MGI: J:262923
Fischer Lindahl K. 1997. On naming H2 haplotypes: functional significance of MHC class Ib alleles. Immunogenetics 46(1):53-62PubMed: 9148789 MGI: J:41130
Shen FW; Chorney MJ; Boyse EA. 1982. Further polymorphism of the Tla locus defined by monoclonal TL antibodies. Immunogenetics 15(6):573-8PubMed: 7106865 MGI: J:6828
Petkov PM; Cassell MA; Sargent EE; Donnelly CJ; Robinson P; Crew V; Asquith S; Haar RV; Wiles MV. 2004. Development of a SNP genotyping panel for genetic monitoring of the laboratory mouse. Genomics 83(5):902-11PubMed: 15081119 MGI: J:89298

View All References

Genetics

Rmcf^s

Allele Symbol: Rmcf^s

Allele Name	MCF sensitive
Allele Type	Spontaneous
Allele Synonym(s)	Rmcf^s; MCF sensitive
Gene Symbol and Name	Rmcf, resistance to MCF virus
Gene Synonym(s)
Strain of Origin	multiple strains
Chromosome	5
General Note	This locus controls resistance and susceptibility of cells in tissue culture to infection by mink cell focus-forming murine leukemia viruses. The allele Rmcf^r determines resistance and occurs in strains DBA/1, DBA/2, and CBA/Ca; the allele Rmcf^s determines susceptibility and occurs in strains AKR/J, C57BL/6, BALB/c, CBA/J, NFS, NZB, 129/J, and many others. Heterozygotes are as resistant as the resistant parent or nearly so. Rmcf is different from and independent of Fv1, a locus that controls susceptibility to infection by ecotropic viruses. Rmcf is located on Chr 5 close to Hm near the centromeric end (J:7108). Rmcf^r protects (AKR x CBA/Ca)F1 and (AKR x DBA/2)F1 hybrids from development of spontaneous thymic lymphomas and reduces the incidence of MCF-induced thymic lymphomas (J:7175). It also reduces susceptibility of cells of Sxv^s/Sxv^r mice to exogenous xenotropic viruses (J:7951). In addition, in strains susceptible to Friend virus-induced erythroleukemia, a condition thought to be due to the replication of MCF virus, Rmcf^r increases resistance to the virus-induced erythroleukemia. It may cause resistance by coding for or regulating the production of an MCF-related envelope glycoprotein that blocks the receptor for MCF viruses (J:8074). This conclusion is reinforced by the findings of Buller et al. (J:8497), who showed that the Rmcf^r allele contains an endogenous MCF gp70 env gene and that the Rmcf^s allele, at least in some strains (C57BL/6, CBA/J, and A/WySn), contains a xenotropic gp70 env gene. Presumably the MCF gp70 inhibits exogenous MCF infection in vitro by a mechanism of viral interference.
Molecular Note	This locus controls resistance of cells to infection by mink cell focus-forming murine leukemia viruses. The recessive s (susceptible) allele is found in AKR/J, C57BL/6, BALB/c, CBA/J, NFS, NZB and 129/J.

Cdh23^ahl

Allele Symbol: Cdh23^ahl

Allele Name	age related hearing loss 1
Allele Type	Spontaneous
Allele Synonym(s)	age related hearing loss 1; Cdh23^ahl
Gene Symbol and Name	Cdh23, cadherin 23 (otocadherin)
Gene Synonym(s)	bob; bustling; bobby; nmf112; nmf252; nmf252; 4930542A03Rik; ahl; 4930542A03Rik; W; sals; mdfw; neuroscience mutagenesis facility, 181; neuroscience mutagenesis facility, 252; modifier of deaf waddler; age related hearing loss 1; v; USH1D; nmf181; RIKEN cDNA 4930542A03 gene; CDHR23; sals; waltzer; nmf112; nmf181; mdfw; neuroscience mutagenesis facility, 112; bus; ahl; bob; salsa; PITA5
Strain of Origin	multiple strains
Chromosome	10
Molecular Note	Genetic complementation tests have shown allelism between the mdfw (modifier of deaf waddler) locus and the ahl locus. Further analysis has shown this is caused by a G to A transition at nucleotide position 753 of Cdh23. This hypomorphic allele causes in frame skipping of exon 7, which is predicted to delete part of the 2nd and 3rd ectodomains, and cause reduced message stability. Twenty-seven strains classified with ahl and carrying the 753A allele include: CD-1, RBF/DnJ, PL/J, AKR/J, RF/J, BALB/cBy, A/WySnJ, P/J, SENCARA/PtJ, DBA/1J, ALS/LtJ, C58/J, C57BLKS/J, 129P1/ReJ, C57BR/cd, SKH2/J, BUB/Bn, MA/MyJ, LP/J, 129X1/SvJ, NOR/LtJ, A/J, C57BL/6, NOD/LtJ, DBA/2J, ALR/LtJ, C57L/J. Strains classified with ahl that DO NOT carry this mutation include: C3H/HeSnJ, I/LnJ, YBR/Ei, MRL/MpJ.

Ahr^b-1

Allele Symbol: Ahr^b-1

Allele Name	b-1 variant
Allele Type	Not Applicable
Allele Synonym(s)	Ahr^b-1; b-1 variant
Gene Symbol and Name	Ahr, aryl-hydrocarbon receptor
Gene Synonym(s)	bHLHe76; aromatic hydrocarbon responsiveness; aryl hydrocarbon hydroxylase; Ahh; dioxin receptor; In; Ah; Ahre; inflammatory reactivity; RP85
Strain of Origin	C57BL/6J
Chromosome	12
General Note	C57BL/6 carries the responsive Ahr^b allele; DBA/2 carries nonresponsive Ahr^d. Heterozygotes (Ahr^b/Ahr^d) are responsive (J:5282). Later work identified a second (J:8895) and later a third (J:22144) allele conferring response. Thus the allele in C57, C58, and MA/My strains is now Ahr^b-1; Ahr^b-2 is carried by BALB/cBy, A, and C3H; and Ahr^b-3 by Mus spretus, M. caroli, and MOLF/Ei. The nonresponsive strains AKR, DBA/2, and 129 carry Ahrd (J:22144). Nucleotide and amino acid sequence differences between Ahr^b-1 and Ahr^d have been determined (J:17460). Strain of origin - this allele was found in C57BL/6, C58/J, C57BR, MA/My strains
Molecular Note	This allele encodes a high affinity, relatively heat stabile, 95 kDa receptor. PCR sequencing of cDNA revealed ten nucleotide differences between the coding sequences of the DBA/2J and C57BL/6J receptors. Five of the ten differences would cause amino acid changes. One of these, a C to T transition in exon 11 would change the arginine codon in the DBA/2J allele to an opal termination codon in the C57BL/6J allele. This change would prevent the 43 amino acid extension of mRNA translation predicted for the DBA/2J allele and account for the smaller size of the peptide produced by this allele (95 kDa vs 104 kDa for the DBA/2J allele). A second C to T transition changes a proline codon in the DBA/2J allele to leucine codon in the C57BL/6J allele, and would likely change secondary structure of the peptide and thus ligand affinity.

Disease/Phenotype

Disease Terms

Research Areas By Genotype

This mouse can be used to support research in many areas including:

Genotype: Ahr^b-1 related

Metabolism Research
Research Tools
- Toxicology Research

Genotype: Cdh23^ahl related

Neurobiology Research
- Hearing Defects
  - Age related hearing loss
Sensorineural Research
- Hearing Defects
  - Age related hearing loss

Cardiovascular Research
- Diet-Induced Atherosclerosis
  - Susceptible
Research Tools
- General Purpose
- Neurobiology Research
Neurobiology Research
- Hearing Defects
  - Age related hearing loss
Sensorineural Research
- Hearing Defects
  - Age related hearing loss

Mammalian Phenotype Terms by Genotype

The following phenotype relates to a compound genotype created using this strain

Genotype: Rmcf^s/Rmcf^s
C57BR/cdJ

immune system phenotype

increased susceptibility to viral infection
- susceptible to infection with N- and NB-tropic mink cell focus-forming (MCF) viruses

Phenotype Information

Festing Inbred Strain Characteristics: C57BR

References

Timmermans S; Van Montagu M; Libert C. 2017. Complete overview of protein-inactivating sequence variations in 36 sequenced mouse inbred strains. Proc Natl Acad Sci U S A 114(34):9158-9163PubMed: 28784771 MGI: J:244295
Doran AG; Wong K; Flint J; Adams DJ; Hunter KW; Keane TM. 2016. Deep genome sequencing and variation analysis of 13 inbred mouse strains defines candidate phenotypic alleles, private variation and homozygous truncating mutations. Genome Biol 17(1):167PubMed: 27480531 MGI: J:262923
Fischer Lindahl K. 1997. On naming H2 haplotypes: functional significance of MHC class Ib alleles. Immunogenetics 46(1):53-62PubMed: 9148789 MGI: J:41130
Shen FW; Chorney MJ; Boyse EA. 1982. Further polymorphism of the Tla locus defined by monoclonal TL antibodies. Immunogenetics 15(6):573-8PubMed: 7106865 MGI: J:6828
Petkov PM; Cassell MA; Sargent EE; Donnelly CJ; Robinson P; Crew V; Asquith S; Haar RV; Wiles MV. 2004. Development of a SNP genotyping panel for genetic monitoring of the laboratory mouse. Genomics 83(5):902-11PubMed: 15081119 MGI: J:89298

Additional References

International Nomenclature Committee. 1952. COMMITTEE on Standardized Nomenclature for Inbred Strains of Mice Cancer Res 12(8):602-13PubMed: 14945054 MGI: J:166288
Henry KR. 1982. Age-related auditory loss and genetics: an electrocochleographic comparison of six inbred strains of mice. J Gerontol 37(3):275-82PubMed: 7069150 MGI: J:22724
Pagel J; Pegram V; Vaughn S; Donaldson P; Bridgers W. 1973. The relationship of REM sleep with learning and memory in mice. Behav Biol 9(3):383-8PubMed: 4355184 MGI: J:23519
Sundberg JP; Berndt A; Sundberg BA; Silva KA; Kennedy V; Bronson R; Yuan R; Paigen B; Harrison D; Schofield PN. 2011. The mouse as a model for understanding chronic diseases of aging: the histopathologic basis of aging in inbred mice. Pathobiol Aging Age Relat Dis 1PubMed: 22953031 MGI: J:236844
Andrews E; Velupillai P; Sung CK; Beier DR; Benjamin T. 2012. Production of a natural antibody to the mouse polyoma virus is a multigenic trait. G3 (Bethesda) 2(3):353-5PubMed: 22413089 MGI: J:244969
Poland A; Glover E. 1990. Characterization and strain distribution pattern of the murine Ah receptor specified by the Ahd and Ahb-3 alleles. Mol Pharmacol 38(3):306-12PubMed: 2169579 MGI: J:34840
Zheng QY; Johnson KR; Erway LC. 1999. Assessment of hearing in 80 inbred strains of mice by ABR threshold analyses. Hear Res 130(1-2):94-107PubMed: 10320101 MGI: J:54812
Daniel WL; Harrison BW; Nelson K. 1982. Genetic regulation of murine hepatic arylsulfatase B activity during development. J Hered 73(1):24-8PubMed: 7069188 MGI: J:6740

Additional - Ahr^b-1 related

Additional - Cdh23^ahl related

Additional - Rmcf^s related

Technical Support

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Genotyping Protocols
- Genotyping resources and troubleshooting
Breeding Considerations

This inbred strain is maintained by sibling mating.
- Additional Breeding and Husbandry Support
Mating System
- Sibling x Sibling
Appearance
- brown
  Related Genotype: a/a Tyrp1^b/Tyrp1^b
Citation
When using the C57BR/cdJ mouse strain in a publication, please include JAX stock #000667 in your Materials and Methods section.

Animal Health Reports

Facility Barrier Level Descriptions

Production of mice from cryopreserved embryos or sperm occurs in a maximum barrier room, G200

Pricing & Availability

Cryo Recovery

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Cryorecovery - Pricing

Service	Genotype	Price
	Inbred, 1 pair minimum will be supplied

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.

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Also Known As: Brown cd, C57 Brown, BR

Genetic overview

Research Applications

Base Price

Important Note

Detailed Description

Development

Control Suggestions

Additional Information

Selected References

Rmcfs

Allele Symbol: Rmcfs

Cdh23ahl

Allele Symbol: Cdh23ahl

Ahrb-1

Allele Symbol: Ahrb-1

Disease Terms

Research Areas By Genotype

This mouse can be used to support research in many areas including:

Genotype: Ahrb-1 related

Genotype: Cdh23ahl related

Mammalian Phenotype Terms by Genotype

Genotype: Rmcfs/RmcfsC57BR/cdJ

immune system phenotype

Phenotype Information

References

Additional References

Additional - Ahrb-1 related

Additional - Cdh23ahl related

Additional - Rmcfs related

Genotyping Protocols

Breeding Considerations

Mating System

Appearance

Citation

Animal Health Reports

Production of mice from cryopreserved embryos or sperm occurs in a maximum barrier room, G200

Live Mouse

Cryorecovery - Pricing

Payment Terms and Conditions

The Jackson Laboratory's Genotype Promise

Terms of Use

Licensing Information

JAX® Mice, Products & Services Conditions of Use

No Warranty

Credit for PRODUCTS or SERVICES

Animal Care and Use for SERVICES

No Liability

Rmcf^s

Allele Symbol: Rmcf^s

Cdh23^ahl

Allele Symbol: Cdh23^ahl

Ahr^b-1

Allele Symbol: Ahr^b-1

Genotype: Ahr^b-1 related

Genotype: Cdh23^ahl related

Genotype: Rmcf^s/Rmcf^s
C57BR/cdJ

Additional - Ahr^b-1 related

Additional - Cdh23^ahl related

Additional - Rmcf^s related