| Primary Identifier | MGI:5751115 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Esr2 |
| Transmission | Germline | Strain of Origin | 129X1/SvJ |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A loxP site was inserted upstream of exon 3 and a floxed neo cassette was inserted downstream of exon 3 via homologous recombination. Cre mediated recombination removed the neo cassette and exon 3. |