| Primary Identifier | MGI:2664239 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Hbb |
| Transmission | Germline | Strain of Origin | 129S2/SvPas |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A genomic fragment encompassing all of Hbb-b1 and a 5' portion of Hbb-b2 was replaced with a neo cassette inserted by homologous recombination. |