| Primary Identifier | MGI:3773989 | Allele Type | Targeted |
| Gene | Spi1 | Transmission | Germline |
| Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | The endogenous gene was replaced with one in which the three Runx1 binding sites within a floxed upstream regulatory element (URE) were mutated from TGTGGT to TGACCT by sire-directed mutagenesis. A frt-flanked neo cassette was inserted upstream of the URE. |
