| Primary Identifier | MGI:3834620 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Hbb-y |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | 1.1 kb of DNA containing the promoter region, exon1, and exon2 was replaced with a floxed PGK-hygro selection cassette in ES cells already containing the targeted allele Hbb-bh1 |