| Primary Identifier | MGI:2678753 | Allele Type | Targeted |
| Attribute String | Null/knockout, Reporter | Gene | Ifnb1 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The endogenous locus was disrupted via homologous recombination of a targeting vector that contained a lacZ gene followed by a floxed neo gene. The neo gene was excised via cre-mediated recombination prior to germline transmission. Transcript was undetected by RT-PCR analysis of homozygous mutant MEFs. |