| Primary Identifier | MGI:2386394 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Smad4 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The entire floxed fragment, containing exon 8 and a neo cassette, was excised via the in vivo expression of cre recombinase. A single loxP site was left downstream of exon 9. |