| Primary Identifier | MGI:5484776 | Allele Type | Targeted |
| Attribute String | Conditional ready, No functional change | Gene | Grb2 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A loxP site was inserted upstream of exon 2. An FRT-flanked trapping construct (splice acceptor, IRES and beta-geo cassette) with a 5' loxP site was inserted downstream of exon 2. Flp-mediated recombination removed the trapping construct and left exon 2 floxed. |