| Primary Identifier | MGI:2388027 | Allele Type | Targeted |
| Attribute String | Null/knockout, Reporter | Gene | Six4 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The region of exon 1 encoding the Six homologous region and homeobox was replaced with an in-frame lacZ-neo cassette via homologous recombination. Northern blot analysis of RNA from whole E11.5 homozygous mutant embryos and adult skeletal muscle did not detect gene transcripts of any size. |