| Primary Identifier | MGI:3574591 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Hrk |
| Transmission | Germline | Strain of Origin | 129/Sv |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The single coding exon was replaced with a neomycin resistance cassette. RT-PCR of mutant brain, spleen, thymus, bone marrow and liver samples demonstrated the lack of transcript. |