| Primary Identifier | MGI:6150845 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Ptpn22 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A loxP aite was inserted 5' to exon 1 and a loxP-flanked neomycin selection cassette was inserted 3' to exon 1. Cre-mediated recombination removed both exon 1 and the loxP-flanked neomycin selection cassette. |