| Primary Identifier | MGI:1857146 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Cdkn1b |
| Transmission | Germline | Strain of Origin | 129S4/SvJaeSor |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Replacement of the entire coding region of the Cdkn1b gene with a neomycin cassette. |