| Primary Identifier | MGI:4950441 | Allele Type | Targeted |
| Attribute String | Hypomorph | Gene | Xist |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A floxed neo cassette was inserted into exon 1 in ES cells containing Xisttm4.1Nbd, which lacks exon 4. Cre-mediated recombination removed the neo cassette and inverts the sequence between the loxP site (including exon 3, exon 2, and the 3' portion of exon 1). |