| Primary Identifier | MGI:3722842 | Allele Type | Targeted |
| Attribute String | Modified regulatory region, Null/knockout | Gene | Rr299391 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A 1085 bp region containing Tcrd enhancer Edelta was replaced with a loxP site flanked neomycin resistance gene cassette, which was subsequently removed via cre-mediated recombination. |