| Primary Identifier | MGI:2664492 | Allele Type | Targeted |
| Attribute String | Null/knockout, Reporter | Gene | Nanog |
| Transmission | Germline | Strain of Origin | 129S4/SvJae |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exon 2 of the gene, which contains the homeodomain, was replaced with an IRES-Beta geo cassette. X-gal staining of preimplantation embryos detected beta-geo in the inner cell mass of blastocysts and the central portion of the morula but not in 32-cell stage embryos or earlier. |