| Primary Identifier | MGI:5559216 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Fxr1 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin resistance cassette was inserted into the gene. Western blot analysis confirmed the absence of protein in immortalized macrophage cell lines derived from bone marrow. |