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| Nomenclature |
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Symbol:
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Ahrb-2
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Name:
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aryl-hydrocarbon receptor;
b-2 variant
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MGI ID: |
MGI:2667355 |
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Synonyms: |
Ahb-2, Ahh |
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Gene:
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Ahr
Location:
Chr12:36182651-36219661 bp, - strand
Genetic Position: Chr12,
18.0 cM
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Mutation
origin |
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Strain of Origin:
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BALB/cBy
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Mutation
description |
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Allele
Type: |
Not Applicable |
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Mutation: |
Nucleotide substitutions |
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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).
(J:15153, J:22144) |
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Inheritance: |
Codominant |
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| Find Mice (IMSR) |
Mouse strains and cell lines available from the
International Mouse Strain Resource
(IMSR)
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Phenotype
summary
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Phenotype Summary by Mammalian Phenotype terms
(show or
hide all annotated terms)
Genotypes are listed in the next section.
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Key:
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| hm |
homozygous |
ht |
heterozygous |
| cn |
conditional genotype |
cx |
complex: > 1 genome feature |
| tg |
involves transgenes |
ot |
other: hemizygous, indeterminate,... |
| N |
normal phenotype |
 |
expected model not found |
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Phenotypic
data by
genotype
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Phenotypic Data by Genotype
(show or
hide all phenotypic details)
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Notes |
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
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| References |
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Original: |
J:8895
Poland A et al.,
"The murine Ah locus: a new allele and mapping to chromosome 12."
Mol Pharmacol 1987 Oct;32(4):471-8
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All: |
12 reference(s)
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