| Primary Identifier | MGI:1857722 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Htt |
| Transmission | Germline | Strain of Origin | 129S/SvEv-Gpi1<c> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin resistance cassette replaced a 2.8 kb fragment of the gene, which included the 5' flanking sequence, the entire first exon, and 0.6 kb of the 3' flanking intron. |