| Primary Identifier | MGI:1888951 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | E2f4 |
| Inheritance Mode | Recessive | Transmission | Germline |
| Strain of Origin | 129P2/OlaHsd | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | The null allele was generated by replacing the first three exons of the wild-type locus with a PGK-neo cassette. |