| Primary Identifier | MGI:7857325 | Allele Type | Targeted |
| Attribute String | Modified regulatory region | Gene | Rr381 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The 418 bp Zbtb7b silencer, located upstream, was replaced with the 434 bp Cd4 silencer Rr96. |