| Primary Identifier | MGI:5613240 | Allele Type | Targeted |
| Attribute String | Conditional ready | Gene | Tcf21 |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | One loxP site was inserted upstream of exon 1 and a second loxP site followed by an FRT flanked PGK-neomycin cassette was inserted in a nonconserved region of intron 1. The selection cassette was subsequently removed by expression of flp recombinase. |