| Primary Identifier | MGI:1857228 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Nos2 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin cassette replaced exons 12 and 13 of the gene, which encode the calmodulin-binding domain. Northern and Western blots of IFNg/LPS-stimulated peritoneal macrophages showed no detectable Nos2 mRNA or protein, respectively. |