| Primary Identifier | MGI:2179551 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Lefty2 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | All 4 exons of this gene were replaced with a neomycin resistance cassette via homologous recombination. Homozygous mutant embryos at E8.5 and E11.5 were identified by Southern blot analysis. |