| Primary Identifier | MGI:6148206 | Allele Type | Targeted |
| Attribute String | Conditional ready | Gene | Per2 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | LoxP sites were inserted to flank exon 6. An frt-flanked neomycin selection cassette was removed via FRT-mediated recombination. |