| Primary Identifier | MGI:3844734 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Extl3 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Cre mediated recombination of Extl3tm1Okam removed exon 2 and the neo cassette. HPLC analysis confirmed the absence of heparan sulfate derived disaccharides in homozygous embryos. |