| Primary Identifier | MGI:1858107 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Brca1 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A 184 bp fragment of the Brca1 gene corresponding to amino acids 300-361 was deleted and replaced with a neomycin cassette. |