| Primary Identifier | MGI:1857632 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Bmi1 |
| Inheritance Mode | Semidominant | Transmission | Germline |
| Strain of Origin | 129P2/OlaHsd | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | The sequences encoding the ATG start codon, the zinc finger motif, and part of the helix-turn-helix motif were replaced either with a hygromycin-resistance cassette or one that conveyed neomycin-resistance. |