| Primary Identifier | MGI:3621901 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Mchr1 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The entire coding sequence was replaced with a neomycin resistance cassette. Northern blot failed to detect transcript in mutants. |