| Primary Identifier | MGI:3620061 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Fgfr1 |
| Transmission | Germline | Strain of Origin | 129S4/SvJaeSor |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exon 4 was flanked by loxP sites via homologous recombination. Exon 4 is the first allele common to all splice variants. Cre-mediated excision of exon 4 was accomplished by breeding to a Cre-expressing line. |