| Primary Identifier | MGI:5538565 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Tbx3 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A loxA1 site was inserted upstream of exon 1. An FRT-flanked neomycin resistance cassette with a 5' loxA1 site was inserted in intron 1. Flp-mediated recombination removed the neomycin resistance cassette. Cre-mediated recombination removed exon 1. Immunohistochemistry confirmed the absence of protein expression in the sinoatrial node. |