Description

Strain Information

Former Names CXB-7/ByJ    (Changed: 15-DEC-04 ) CXB-K    (Changed: 15-DEC-04 ) Type Recombinant Inbred (RI); Additional information on Recombinant Inbred Mice. Visit our online Nomenclature tutorial. Mating System Sibling x Sibling         (Female x Male)   01-MAR-06 Species laboratory mouse RI progenitor BALB/cBy C57BL/6By H2 Haplotype b Generation F144 (15-AUG-11) Generation Definitions

Appearance
black
Related Genotype: a/a Tyrp1⁺/Tyrp1⁺ Tyr⁺/Tyr⁺

Description
The CXB set of RI strains is used in the genetic analysis of numerous complex or potentially complex physiologic phenotypes including differences in thyroid function (Graves' disease), contact dermatitis and pulmonary inflammation as well as behavioral phenotypes including avoidance, exploration and locomotor activity. A SNP data set is available through the Mouse Phenome Database for the CXB strains. The CXB set is so small that markers on different chromosomes occasionally have almost precisely the same SDP. This produces high non-syntenic association and false linkage between variance in phenotypes and genotypes. Please examine the correlation coefficients of markers close to interest loci with ALL other markers to evaluate the risk of non-syntenic association. A complete data set including MIT markers may be downloaded from the University of Tennessee Gene Network site.

The CXB7/ByJ recombinant inbred strain is widely used because of a deficiency in mu opioid receptors. Like BALB/cByJ, this recombinant inbred carries the mutation hippocampal lamination defect or Hld, an allele responsible for abnormal neuronal migration to the pyramidal cell layer (Nowakowski RS, et al, Jnl Neurogen, 1984).

Development
The original 11 CXB recombinant inbred (RI) lines were generated at the National Institutes of Health by Dr. Donald Bailey (labcode By) starting in 1959. After moving to The Jackson Laboratory in 1967, an additional set of 6 strains was created with the help of Jo Hilgers (Labcode Hi). The CXB set is derived from the BALBc/ByJ (Stock No. 001026) and C57BL/6ByJ (Stock No. 001139) progenitor strains. CXB1 through CXB7 originally were designated using letters. Several of the original strains are extinct. The Jackson Laboratory currently distributes 7 of the original By strains and 6 of the Hi strains.

Related Strains

CXB By Strains

000351	CXB1/ByJ
000352	CXB2/ByJ
000353	CXB3/ByJ
000354	CXB4/ByJ
000355	CXB5/ByJ
000356	CXB6/ByJ

View CXB By Strains     (6 strains)

CXB Strains

000351	CXB1/ByJ
001631	CXB10/HiAJ
001632	CXB11/HiAJ
001633	CXB12/HiAJ
001634	CXB13/HiAJ
000352	CXB2/ByJ
000353	CXB3/ByJ
000354	CXB4/ByJ
000355	CXB5/ByJ
000356	CXB6/ByJ
001629	CXB8/HiAJ
001630	CXB9/HiAJ

View CXB Strains     (12 strains)

Strains carrying   Ahr^b-2 allele

000645	A/HeJ
000646	A/J
000130	B6.C-H17c/(HW14)ByJ
000370	B6.C-H38c/(HW119)ByJ
001026	BALB/cByJ
000653	BUB/BnJ
000659	C3H/HeJ
000656	CBA/J
000657	CE/J
000352	CXB2/ByJ
000353	CXB3/ByJ
000354	CXB4/ByJ
000355	CXB5/ByJ
000673	HRS/J
000679	P/J
000930	PERA/EiJ
000644	SEA/GnJ
000280	SF/CamEiJ

View Strains carrying   Ahr^b-2     (18 strains)

Strains carrying   Hld allele

001026	BALB/cByJ
000651	BALB/cJ
000351	CXB1/ByJ
000353	CXB3/ByJ
000354	CXB4/ByJ
000355	CXB5/ByJ

View Strains carrying   Hld     (6 strains)

Strains carrying other alleles of Ahr

000690	129P3/J
000648	AKR/J
002920	B6(D2N).Spretus-Ahrb-3/J
006203	B6.129(FVB)-Ahrtm3.1Bra/J
002831	B6.129-Ahrtm1Bra/J
000136	B6.C-H34c/(HW22)ByJ
008599	B6.Cg-Cyp1a2/Cyp1a1tm2Dwn Ahrd Tg(CYP1A1,CYP1A2)1Dwn/DwnJ
002921	B6.D2N-Ahrd/J
002727	B6;129-Ahrtm1Bra/J
000652	BDP/J
000663	C57BL/6By
001139	C57BL/6ByJ
000664	C57BL/6J
000662	C57BLKS/J
000667	C57BR/cdJ
000668	C57L/J
000669	C58/J
000926	CAROLI/EiJ
000928	CAST/EiJ
000351	CXB1/ByJ
000356	CXB6/ByJ
002937	D2.B6-Ahrb-1/J
000671	DBA/2J
000674	I/LnJ
000675	LG/J
000676	LP/J
000677	MA/MyJ
000550	MOLF/EiJ
000684	NZB/BlNJ
000726	RBF/DnJ
000682	RF/J
000686	SJL/J
001146	SPRET/EiJ
000688	ST/bJ
000689	SWR/J
000693	WC/ReJ KitlSl/J
000933	YBR/EiJ

View Strains carrying other alleles of Ahr     (37 strains)

Phenotype

Phenotype Information

View Phenotypic Data

Phenotypic Data

Mouse Phenome Database
Wellcome Trust Centre for Human Genetics: Mouse Recombinant Inbred Line (RIL) Genotype Data for CXB RI Line

View Research Applications

Research Applications

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

Neurobiology Research
Behavioral and Learning Defects
      mu opioid receptor deficiency

Research Tools
Genetics Research
      Gene Mapping
      Gene Mapping: Tools for QTL Mapping, Segregation and Linkage Analysis

Genes & Alleles

Gene & Allele Information provided by MGI

Allele Symbol		Ahrb-2
Allele Name		b-2 variant
Allele Type		Not Applicable
Common Name(s)		Ahb-2; Ahh;
Strain of Origin		BALB/cBy
Gene Symbol and Name		Ahr, aryl-hydrocarbon receptor
Chromosome		12
Gene Common Name(s)		Ah; Ahh; Ahre; In; aromatic hydrocarbon responsiveness; aryl hydrocarbon hydroxylase; bHLHe76; dioxin receptor; inflammatory reactivity;
General Note		C57BL/6 carries the responsive Ahrb allele; DBA/2 carries nonresponsive Ahrd. Heterozygotes (Ahrb/Ahrd) 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 Ahrb-1; Ahrb-2 is carried by BALB/cBy, A, and C3H; and Ahrb-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 Ahrb-1 and Ahrd have been determined (J:17460). Strain of origin - this allele was found in BALB/cByJ, A/J, C3H/HeJ, CBA strains
Molecular Note		This allele encodes a high affinity, heat labile, 104 kDa receptor containing 848 amino acids. Sequencing studies of cDNA from C57BL/6J congenic mice homozygous for this allele identified nucleotide substitutions in the ORF that would cause 5 amino acid differences between the C57BL/6J and BALB/cBy peptides, and 2 amino acid differences between the BALB/cBy and DBA/2J peptides. A T to C transition in exon 11 replaces the opal termination codon in the C57BL/6J allele with an arginine codon in the BALB/cByallele. This change would extend translation of the BALB/cBy mRNA by 43 amino acids, accounting for the larger size of the peptide produced by this allele (104 kDa, vs 95 kDa for the C57BL/6J allele). [MGI Ref ID J:15153] [MGI Ref ID J:22144]
Allele Symbol		Hld
Allele Name		hippocampal lamination defect
Allele Type		Spontaneous
Strain of Origin		BALB/cJ
Gene Symbol and Name		Hld, hippocampal lamination defect
Chromosome		UN
General Note		Abnormal laminar organization of the pyramidal layer of the cerebellum, particularly in the proximal segment of the layer, occurs in the BALB/cJ strain. In normal strains, the latest formed or youngest neurons migrate past the earlier formed or older neurons to a position in the pyramidal layer that is superficial to that of the older cells. In BALB/cJ, the positions are reversed, with the older cells lying superior to the younger ones (J:5787). Since mossy fibers form synapses primarily with the older cells, this aberrant pattern of cell migration in BALB/c leads to a different pattern of mossy-fiber synapses, easily visualized with Timm's stain (J:5486). The dendritic excrescences induced by contact with mossy fibers on late-generated pyramidal cells in +/+ mice occur at sites on both the apical and basal dendrites; in Hld/Hld mice, they occur in two sites on the apical dendrites only (J:12029).

Genotyping

Genotyping Information

Helpful Links

Genotyping resources and troubleshooting

References

References provided by MGI

Selected Reference(s)

Williams RW; Gu J; Qi S; Lu L. 2001. The genetic structure of recombinant inbred mice: high-resolution consensus maps for complex trait analysis. Genome Biol 2(11):1-18. [PubMed: 11737945]  [MGI Ref ID J:73062]

Additional References

Bailey DW. 1971. Recombinant-inbred strains. An aid to finding identity, linkage, and function of histocompatibility and other genes. Transplantation 11(3):325-7. [PubMed: 5558564]  [MGI Ref ID J:17649]

De Maeyer E; De Maeyer-Guignard J; Bailey DW. 1975. Effect of mouse genotype on interferon production. I. Lines congenic at the If-1 locus. Immunogenetics 1:438-443.  [MGI Ref ID J:4430]

Marek P; Yirmiya R; Liebeskind JC. 1990. Genetic influences on brain stimulation-produced analgesia in mice: II. Correlation with brain opiate receptor concentration. Brain Res 507(1):155-7. [PubMed: 2154297]  [MGI Ref ID J:24562]

Nowakowski RS. 1984. The mode of inheritance of a defect in lamination in the hippocampus of BALB/c mice. J Neurogenet 1(3):249-58. [PubMed: 6536729]  [MGI Ref ID J:7947]

Poland A; Glover E; Taylor BA. 1987. The murine Ah locus: a new allele and mapping to chromosome 12. Mol Pharmacol 32(4):471-8. [PubMed: 2823093]  [MGI Ref ID J:8895]

Ahr^b-2 related

Nebert DW; Considine N; Owens IS. 1973. Genetic expression of aryl hydrocarbon hydroxylase induction. VI. Control of other aromatic hydrocarbon-inducible mono-oxygenase activities at or near the same genetic locus. Arch Biochem Biophys 157(1):148-59. [PubMed: 4716952]  [MGI Ref ID J:84313]

Nebert DW; Gielen JE. 1972. Genetic regulation of aryl hydrocarbon hydroxylase induction in the mouse. Fed Proc 31(4):1315-25. [PubMed: 4114109]  [MGI Ref ID J:5282]

Nebert DW; Jensen NM; Shinozuka H; Kunz HW; Gill TJ 3rd. 1982. The Ah phenotype. Survey of forty-eight rat strains and twenty inbred mouse strains. Genetics 100(1):79-87. [PubMed: 7095422]  [MGI Ref ID J:6809]

Nebert DW; Robinson JR; Niwa A; Kumaki K; Poland AP. 1975. Genetic expression of aryl hydrocarbon hydroxylase activity in the mouse. J Cell Physiol 85(2 Pt 2 Suppl 1):393-414. [PubMed: 1091656]  [MGI Ref ID J:84317]

Niwa A; Kumaki K; Nebert DW; Poland AP. 1975. Genetic expression of aryl hydrocarbon hydroxylase activity in the mouse. Distinction between the 'responsive' homozygote and heterozygote at the Ah locus. Arch Biochem Biophys 166(2):559-64. [PubMed: 1119809]  [MGI Ref ID J:84316]

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):306-12. [PubMed: 2169579]  [MGI Ref ID J:34840]

Poland A; Glover E; Taylor BA. 1987. The murine Ah locus: a new allele and mapping to chromosome 12. Mol Pharmacol 32(4):471-8. [PubMed: 2823093]  [MGI Ref ID J:8895]

Poland A; Palen D; Glover E. 1994. Analysis of the four alleles of the murine aryl hydrocarbon receptor. Mol Pharmacol 46(5):915-21. [PubMed: 7969080]  [MGI Ref ID J:22144]

Robinson JR; Considine N; Nebert DW. 1974. Genetic expression of aryl hydrocarbon hydroxylase induction. Evidence for the involvement of other genetic loci. J Biol Chem 249(18):5851-9. [PubMed: 4413562]  [MGI Ref ID J:84315]

Schmid FA; Pena RC; Robinson W; Tarnowski GS. 1967. Toxicity of intraperitoneal injections of 7, 12-dimethylbenz[a]anthracene in inbred mice. Cancer Res 27(3):558-62. [PubMed: 6021513]  [MGI Ref ID J:26440]

Schmidt JV; Carver LA; Bradfield CA. 1993. Molecular characterization of the murine Ahr gene. Organization, promoter analysis, and chromosomal assignment. J Biol Chem 268(29):22203-9. [PubMed: 8408082]  [MGI Ref ID J:15153]

Smith AG; Clothier B; Robinson S; Scullion MJ; Carthew P; Edwards R; Luo J; Lim CK; Toledano M. 1998. Interaction between iron metabolism and 2,3,7,8-tetrachlorodibenzo-p-dioxin in mice with variants of the Ahr gene: a hepatic oxidative mechanism. Mol Pharmacol 53(1):52-61. [PubMed: 9443932]  [MGI Ref ID J:45850]

Thomas PE; Hutton JJ; Taylor BA. 1973. Genetic relationship between aryl hydrocarbon hydroxylase inducibility and chemical carcinogen induced skin ulceration in mice. Genetics 74(4):655-9. [PubMed: 4750810]  [MGI Ref ID J:5387]

Hld related

Barber RP; Vaughn JE; Wimer RE; Wimer CC. 1974. Genetically-associated variations in the distribution of dentate granule cell synapses upon the pyramidal cell dendrites in mouse hippocampus. J Comp Neurol 156(4):417-34. [PubMed: 4137683]  [MGI Ref ID J:5486]

Nowakowski RS. 1984. Hippocampal lamination defect = Hld. Mouse News Lett 71:35.  [MGI Ref ID J:13989]

Nowakowski RS. 1984. The mode of inheritance of a defect in lamination in the hippocampus of BALB/c mice. J Neurogenet 1(3):249-58. [PubMed: 6536729]  [MGI Ref ID J:7947]

Nowakowski RS; Davis TL. 1985. Dendritic arbors and dendritic excrescences of abnormally positioned neurons in area CA3c of mice carrying the mutation hippocampal lamination defect. J Comp Neurol 239(3):267-75. [PubMed: 4044940]  [MGI Ref ID J:12029]

Vaughn JE; Matthews DA; Barber RP; Wimer CC; Wimer RE. 1977. Genetically-associated variations in the development of hippocampal pyramidal neurons may produce differences in mossy fiber connectivity. J Comp Neurol 173(1):41-51. [PubMed: 845286]  [MGI Ref ID J:5787]

Health & husbandry

Health & Colony Maintenance Information

Animal Health Reports

Room Number           FGB29

Colony Maintenance

Mating System	Sibling x Sibling         (Female x Male)   01-MAR-06
Diet Information	LabDiet® 5K52/5K67

Pricing and Purchasing

Pricing, Supply Level & Notes, Controls

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• This strain is included in the Special Mutant Stock Resource collection.
• Genomic DNA is available for this strain from the Mouse DNA Resource.

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The Jackson Laboratory has rigorous genetic quality control and mutant gene genotyping programs to ensure the genetic background of JAX^® Mice strains as well as the genotypes of strains with identified molecular mutations. JAX^® Mice strains are only made available to researchers after meeting our standards. However, the phenotype of each strain may not be fully characterized and/or captured in the strain data sheets. Therefore, we cannot guarantee a strain's phenotype will meet all expectations. To ensure that JAX^® Mice will meet the needs of individual research projects or when requesting a strain that is new to your research, we suggest ordering and performing tests on a small number of mice to determine suitability for your particular project.

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