| Primary Identifier | MGI:4940879 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Ecm1 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exons 2 through 11 were replaced with a neo cassette. The absence of protein expression was confirmed by western blot analysis on CD4+ T cell subsets. |