| Primary Identifier | MGI:4818639 | Allele Type | Targeted |
| Gene | Rbl1 | Transmission | Germline |
| Strain of Origin | 129S4/SvJae | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | A floxed neo resistance cassette was inserted within intron 1 on the BAC RP23-163J20. E2F binding site 2, TTTgtcGC, was mutated to TTTaaaGC. This BAC was then introduced by homologous recombination. The selection cassette was removed by cre mediated recombination. |