| Primary Identifier | MGI:3843505 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Hcst |
| Transmission | Germline | Strain of Origin | C57BL/6 |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exons 3 and 4 were replaced with a floxed neo cassette. Transient cre expression in ES cells removes the neo cassette. The absence of transcript expression was confirmed by RT-PCR on lymphoid tissue extracts. |