| Primary Identifier | MGI:3692923 | Allele Type | Targeted |
| Attribute String | Conditional ready, No functional change | Gene | Ercc1 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd-Hprt1<b-m3> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | In the first step of a two step process, exons 3-5 were replaced with an Hprt minigene. In the second step, the Hprt1 marker was replaced with the Ercc1 exons 3-5 region flanked by loxP sites. |