| Primary Identifier | MGI:5494436 | Allele Type | Targeted |
| Gene | Brca1 | Transmission | Germline |
| Strain of Origin | 129 | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | Exon 2 was replaced with a modified exon two containing an artificial initiator methionine, FLAG epitope tag and HA epitope tag. Flp-mediated recombination removed a FRT-flanked hygromycin resistance cassette inserted upstream of the modified exon 2. |