| Primary Identifier | MGI:6852677 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Atf3 |
| Transmission | Germline | Strain of Origin | 129 |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | An FRT-flanked neomycin resistance cassette with a 5' loxP site was inserted upstream of exon B. An additional loxP site was inserted downstream of exon B. Flp-mediated recombination removed the neomycin resistance cassette. Cre-mediated recombination removed exon B. |