| Primary Identifier | MGI:1857180 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Htt |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin resistance cassette replaced exons 4 and 5 of the gene. |