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) and pulmonary inflammation as well as behavioral phenotypes including avoidance, exploration and locomotor activity. The CXB set is derived from the BALBc/ByJ (Stock No. 001026) and C57BL/6ByJ (Stock No. 001139) progenitor strains.Read More +
|Allele Type||Gene Symbol||Gene Name|
|Spontaneous||Crb1||crumbs family member 1, photoreceptor morphogenesis associated|
|Allele Type||Gene Symbol||Gene Name|
|Not Applicable||Ahr||aryl-hydrocarbon receptor|
|Allele Type||Gene Symbol||Gene Name|
|Spontaneous||Hld||hippocampal lamination defect|
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) and pulmonary inflammation as well as behavioral phenotypes including avoidance, exploration and locomotor activity.
The strain distribution pattern (SDP) for the CXB RI strains is available through the Mouse Genome Informatics
Contributed Data Sets and Gene Network.
Additional tools and information are presented through the Mouse Phenome Database
Specialized Strain Panel Query Form, and
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.
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).
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.
|Allele Name||retinal degeneration 8|
|Allele Synonym(s)||Crb1rd8; retinal degeneration 8|
|Gene Symbol and Name||Crb1, crumbs family member 1, photoreceptor morphogenesis associated|
|Gene Synonym(s)||7530426H14Rik; A930008G09Rik; RIKEN cDNA 7530426H14 gene; RIKEN cDNA A930008G09 gene; LCA8; 7530426H14Rik; RP12; A930008G09Rik|
|Strain of Origin||C57BL/6By or C57BL/6N|
|Molecular Note||The mutation in the rd8 mouse has been identified as a single base deletion at nt3481 in the gene. This deletion causes a frame shift and a premature stop codon that truncates the transmembrane and cytoplasmic domain of the protein after amino acid 1207. This mutation has been found to be present in all sublines of C57BL/6N and in C57BL/6ByJ, but not in any C57BL/6J subline. It occurred sometime between transfer of mice from JAX to NIH, in 1951, and from NIH to Donald Bailey, in 1961.|
|Allele Name||b-2 variant|
|Allele Type||Not Applicable|
|Allele Synonym(s)||b-2 variant; Ahrb-2|
|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||BALB/cBy|
|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/cBy allele. 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).|
|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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