| Primary Identifier | MGI:7428661 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Trf |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | An FRT-flanked PGK-neomcyin selection cassette and loxP site were inserted upstream of exon 4. A second loxP site was inserted downstream of exon 5. The neomycin selection gene was removed via flp-mediated recombination. Exons 4 and 5 were deleted via cre-mediated recombination in the germline. |