| Primary Identifier | MGI:5432877 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Tespa1 |
| Transmission | Germline | Strain of Origin | 129 |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neo cassette replaced exon 2 and 3. Western blot analysis confirmed the absence of protein expression in thymocytes. |