| Primary Identifier | MGI:2676622 | Allele Type | Targeted |
| Attribute String | Null/knockout, Reporter | Gene | Sp4 |
| Transmission | Germline | Strain of Origin | 129S4/SvJae |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A cassette containing lacZ and neo was inserted in exon 1 via homologous recombination, replacing the codon regions of exons 1 and 2 and a portion of exon 3. Normal transcript was undetected by Northern blot analysis of homozygous mutant mice. |