| Primary Identifier | MGI:5305600 | Allele Type | Targeted |
| Attribute String | Null/knockout, Reporter | Gene | Id3 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A floxed neo cassette was inserted upstream of a modified exon 1 in which a GFP and stop sequence was inserted at the translation initiation site. Cre-mediated recombination removed the neo cassette. |