| Primary Identifier | MGI:2446102 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Irf9 |
| Transmission | Germline | Strain of Origin | (C57BL/6NCrlj x CBA/JNCrlj)F1 |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Two exons encoding the DNA binding domain (amino acids 1 through 121) were replaced by a neomycin resistance cassette. Electrophoretic mobility shift assay indicated the loss of Ifna induced activity. |