| Primary Identifier | MGI:5284883 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Sema5b |
| Transmission | Germline | Strain of Origin | 129 |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A targeting vector was designed to insert a loxP site upstream of exon 2, and a frt-flanked neomycin resistance (neo) cassette followed by a second loxP site just downstream of exon 2 of the semaphorin 5B (Sema5b) targeted gene. Cre-mediated recombination removed exon 2 and the neo cassette. |