| Primary Identifier | MGI:3039289 | 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 | Exons 2 through 5 were flanked by single loxP sites inserted by homologous recombination. A PGK-neo-bpA cassette flanked by FRT sites remained downstream of the coding region. |