| Primary Identifier | MGI:5604888 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Cyp26b1 |
| Transmission | Germline | Strain of Origin | (C57BL/6 x 129S4/SvJae)F1 |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exons 4-6 and the coding region of exon 7 were replaced by a loxP-flanked PGK-neomycin cassette via homologous recombination. |