| Primary Identifier | MGI:3531501 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Atf3 |
| Transmission | Germline | Strain of Origin | 129X1/SvJ |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin resistance cassette replaced exon "B" which contains the AUG initiation codon. Absence of protein product was confirmed by Western blot analysis. |