| Primary Identifier | MGI:6102905 | Allele Type | Targeted |
| Attribute String | Recombinase | Gene | Esr1 |
| Transmission | Germline | Strain of Origin | C57BL/6NTac |
| Is Recombinase | true | Is Wild Type | false |
| molecularNote | A targeting vector containing iCre (codon-improved Cre recombinase), a polyadenylation sequence, and an FRT site flanked PGK-NEO cassette was inserted upstream of the initiation codon site of exon 2 of the the Esr1 gene of a BAC clone (ID RP23-7D5). Flp-mediated recombination removed the FRT-flanked neo cassette. |