| Primary Identifier | MGI:4867860 | Allele Type | Targeted |
| Attribute String | Conditional ready, No functional change | Gene | E4f1 |
| Transmission | Germline | Strain of Origin | 129S4/SvJae |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A loxP site was inserted upstream of exon 4 and a second loxP site followed by an FRT flanked hygromycin thymidine kinase cassette were inserted downstream of exon 14 via homologous recombination. Flp mediated recombination removed the hygromycin thymidine kinase cassette. |