| Primary Identifier | MGI:1857264 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Ttr |
| Transmission | Germline | Strain of Origin | 129S/SvEv-Gpi1<c> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Insertion of a neomycin resistance cassette into the second exon disrupted the gene. Western blot analysis of peripheral blood using a rat polyclonal antiserum did not detect protein in homozygous mutant mice. |