| Primary Identifier | MGI:1928818 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Chek1 |
| Inheritance Mode | Recessive | Transmission | Germline |
| Strain of Origin | 129P2/OlaHsd | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | Replacement of a 2.5kb region containing exons 1 and 2 with a neomycin cassette. The translation initiation site and the sequences encoding the ATP-binding region of the kinase are deleted. |