| Primary Identifier | MGI:2449921 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Gfi1 |
| Transmission | Germline | Strain of Origin | 129S1/Sv-Oca2<+> Tyr<+> Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Sequence encompassing the start codon in exon 1 and all of exons 2 and 3 was replaced by a floxed neo cassette inserted by homologous recombination. The neo cassette was subsequently excised via in vivo cre mediated recombination in the germ line. |