| Primary Identifier | MGI:3583919 | Allele Type | Targeted |
| Attribute String | Modified regulatory region, Null/knockout | Gene | Myc |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The IgH 3' enhancers SH1234 were inserted upstream of the locus. RT-PCR of mutants demonstrated elevated transcript levels in spleenic B-lymphocytes, but normal levels in brain, liver, kidney, lung and thymus. |