| Primary Identifier | MGI:3838181 | Allele Type | Targeted |
| Attribute String | Null/knockout, RMCE-ready | Gene | Ttr |
| Transmission | Germline | Strain of Origin | (C57BL/6NCrlj x CBA/JNCrlj)F1 |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A null allele was created by replacing the ATG start site within exon 1 with a PGK-neo cassette flanked by lox71 and loxP sites. Besides disrupting the gene, the cassette also serve as an acceptor in recombination mediated cassette exchange. No protein was detected in immunoblot analysis of homozygote livers. |