| Primary Identifier | MGI:2176266 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Calr |
| Transmission | Germline | Strain of Origin | 129S4/SvJae |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin resistance cassette replaced a genomic fragment containing the first four coding exons. Western blot analysis on extracts derived from homozygous embryos confirmed that no detectable protein was expressed from this allele. |