| Primary Identifier | MGI:5775955 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Piwil4 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A loxP site was inserted upstream of exon 9. A floxed neomycin resistance was inserted downstream of exon 12. Cre-mediated recombination removed exons 9 through 12 along with the selection cassette. |