| Primary Identifier | MGI:6195842 | Allele Type | Endonuclease-mediated |
| Attribute String | Not Specified | Gene | Ighg1 |
| Transmission | Germline | Strain of Origin | 129S6/SvEvTac |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | With sgRNAs targeting the mu and gamma1 switch regions in the Igh-C immunoglobulin heavy chain constant region, the intervening sequence was deleted in ES cells using CRISPR/Cas9 technology. This engineered recombination (deleting the Ighm, Ighd, and Ighg3 segments) mimics an IgG1 class-switch. |