| Primary Identifier | MGI:2178612 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Ubr1 |
| Transmission | Germline | Strain of Origin | 129S1/Sv-Oca2<+> Tyr<+> Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exons 4 through 6 were replaced by a neo cassette. This coding sequence in this region is highly conserved between S.cerevisiae and mouse, and includes amino acids found to be essential for the type 1 and type 2 substrate binding site. |