| Primary Identifier | MGI:5637532 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Ccna2 |
| Transmission | Germline | Strain of Origin | 129S1/SvImJ or C57BL/6J |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A loxP site was inserted upstream of exon 3 and an FRT flanked neo cassette and loxP site were inserted downstream of exon 5 via homologous recombination. Flp mediated recombination removed the neo cassette. Cre mediated recombination removed exons 3 - 5. |