| Primary Identifier | MGI:5644074 | Allele Type | Targeted |
| Attribute String | Conditional ready, Null/knockout | Gene | Tbp |
| Transmission | Germline | Strain of Origin | 129S/SvEv |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exon 2 was replaced with a floxed STOP, a neomycin resistance cassette and the corresponding human sequence for exon 2 with 105 CAG repeats. |