| Primary Identifier | MGI:7365283 | Allele Type | Targeted |
| Attribute String | Modified regulatory region | Gene | Rr298 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A loxP site was inserted upstream of the Zic3 mesodermal enhancer and a neomycin resistance gene cassette and a second loxP site downstream. The enhancer and neo cassette were deleted through subsequent cre-mediated recombination. |