| Primary Identifier | MGI:1934197 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Runx1 |
| Transmission | Germline | Strain of Origin | 129S4/SvJae |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exon 4 was replaced by a PGK-neo cassette. The deleted region encoded the central portion of the conserved DNA-binding domain. Transcript was undetectable by RT-PCR analysis of extracts from the yolk sacs, livers, and aorta-mesonephros regions of homozygous mutant embryos. |