| Primary Identifier | MGI:5556127 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Mastl |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A loxP site was inserted in intron 3 and an FRT flanked neo cassette and loxP site were inserted in intron 4 via homologous recombination. Recombinase mediated recombination removed the neo cassette and exon 4. |