| Primary Identifier | MGI:3850100 | Allele Type | Targeted |
| Attribute String | Conditional ready, No functional change | Gene | Efnb1 |
| Transmission | Germline | Strain of Origin | 129S4/SvJaeSor |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Germ line, flp mediated recombination removed the neo cassette leaving exon 5 floxed and the modified exon 5 not expressed. Cre mediated recombination to remove the wild-type exon 5 is needed to allow for expression of the modified exon 5. |