| Primary Identifier | MGI:5428684 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Fcgr4 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A loxP site was inserted upstream of exon 1 and loxP sites were inserted downstream of exon 3. Cre-mediated recombination removed exons 1 through 3. Immunohistochemistry confirmed the absence of protein expression in splenic macrophage. |