| Primary Identifier | MGI:2177751 | Allele Type | Targeted |
| Gene | Htt | Transmission | Germline |
| Strain of Origin | 129S4/SvJae | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | This allele carries 80 CAG repeat units in the first exon of the endogenous gene. A loxP flanked neomycin selection cassette in the first intron was removed by Cre mediated recombination in the final allele. |