| Primary Identifier | MGI:3767171 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Ctsk |
| Transmission | Germline | Strain of Origin | 129/Sv |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exons 2 - 5, including the transcription start site, were replaced with a neo cassette via homologous recombination. Immunohistochemical analysis confirmed the absence of detectable protein in femurs from 10 week old homozygous mice. |