| Primary Identifier | MGI:2388606 | Allele Type | Targeted |
| Attribute String | Modified regulatory region, Null/knockout | Gene | Rr282726 |
| Transmission | Germline | Strain of Origin | 129S4/SvJae |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The cis-acting HsA enhancer element was replaced with a loxP site flanked neomycin resistance gene cassette. The neo cassette was excised by transient expression of cre recombinase in correctly targeted ES cells. |