| Primary Identifier | MGI:5469286 | Allele Type | Targeted |
| Attribute String | Reporter | Gene | Igs4 |
| Transmission | Germline | Strain of Origin | 129S4/SvJae |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | An EGFP and floxed neo cassette were targeted to the Watson piRNA cluster on chromosome 17. Cre-mediated recombination removed the neo cassette. |