| Primary Identifier | MGI:6704988 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Cbr1 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A loxP site and a FRT-flanked neomycin resistance cassette were inserted upstream from exon 1 and a second loxP site was inserted downstream of exon 2. Cre-mediated recombination excised exons 1 and 2. |