| Primary Identifier | MGI:5694845 | Allele Type | Targeted |
| Attribute String | Null/knockout, Reporter | Gene | Spns2 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A lacZ reporter gene and neomycin resistance cassette replaced part of exon 6 and exon 7, encoding the Arg200 that is essential for the S1P export activity. RT-PCR confirmed the absence of protein expression in the brain, liver, small intestine and stomach. |