| Primary Identifier | MGI:3826388 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Tspan33 |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A section of DNA encoding part of the first and third transmembrane domains and all of the first extracellular domain and the second transmembrane domain was replaced witha self-excising cre-neo cassette. |