| Primary Identifier | MGI:3613293 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Smtn |
| Transmission | Germline | Strain of Origin | 129/Sv |
| Is Recombinase | false | Is Wild Type | false |
| description | ES Cell Line: L129/Sv |
| molecularNote | Exons 3 through 7 were replaced with a neomycin gene. Q-PCR showed absence of the B transcript in the aorta, femoral artery, and jejunum. No affect upon the A transcript was detected. |