| Primary Identifier | MGI:1888710 | Allele Type | Targeted |
| Attribute String | Null/knockout, Reporter | Gene | Ext1 |
| Transmission | Germline | Strain of Origin | 129S7/SvEvBrd-Hprt1<b-m2> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A 0.3 kb genomic fragment containing part of exon 1 and intron 1 was replaced by a promoterless lacZ gene that was fused in frame with the exon 1 sequences. |
