| Primary Identifier | MGI:3802614 | Allele Type | Targeted |
| Gene | Rr149356 | Transmission | Germline |
| Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | The enchancer (Ebeta) was replaced with a six-flanked neo cassette. Six sequences are targeted for recombination by beta-recombinase. |