| Primary Identifier | MGI:7461882 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Mef2d |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The first 2 exons were floxed and and FRT flanked neo cassette was inserted in intron 2 via homologous recombination. Flp and cre mediated recombination removed the neo cassette and exons 1 and 2. |