| Primary Identifier | MGI:3032983 | Allele Type | Targeted |
| Gene | Igh | Transmission | Germline |
| Strain of Origin | 129 | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | J1 through J4 were replaced with a neomycin resistance cassette followed by the 36-65VDJ fragment. |