| Primary Identifier | MGI:5521508 | Allele Type | Targeted |
| Attribute String | Inserted expressed sequence | Gene | Hprt1 |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The construct targeted to the locus contained a ubiquitous CAG promoter, floxed stop cassette and the murine gene. Cre-mediated recombination removed the stop cassette. Enzymatic assay confirmed a greater than 10-fold increase in secretory acid sphingomyelinase activity in cerebrospinal fluid. |