| Primary Identifier | MGI:1857427 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Ahr |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin selection cassette replaced a genomic fragment containing exon 2, which encodes the basic-HLH domain essential for dimerization and DNA binding. Western blot analysis on liver cytosol demonstrated that the protein was not detectable in homozygous mice. |