| Primary Identifier | MGI:1929070 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Erbb2 |
| Transmission | Germline | Strain of Origin | 129S4/SvJae |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A PGK-neomycin cassette replaced 2.0 kb of sequence containing the promoter and first exon. |