| Primary Identifier | MGI:1858049 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Smad4 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin resistance cassette replaced exon 8 and part of exon 9 of the gene. |