| Primary Identifier | MGI:3624440 | Allele Type | Targeted |
| Attribute String | Conditional ready, No functional change | Gene | Rb1 |
| Transmission | Germline | Strain of Origin | 129T2/SvEms |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin resistance cassette flanked by FRT sites and with a 5' loxP site was inserted in intron 1. An additional loxP site was also inserted in intron 2. The neomycin cassette was subsequently excised by crossing with flpe-deleter mice. |