| Primary Identifier | MGI:1857680 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Arnt |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A PGK-neomycin resistance cassette was inserted into the exon that encodes the basic-helix-loop-helix domain. |