| Primary Identifier | MGI:3829654 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Xist |
| Transmission | Germline | Strain of Origin | 129S4/SvJae |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The portion of exon 1 encoding the A repeat was replaced with a neo cassette. Germ line, cre-mediated recombination was used to remove the neo cassette. |