Shh<C-NShh> Shh<Co> Shh<flox> Shh<tm2Amc> targeted mutation 2, Andrew P McMahon MGI:1934268 Shh<f> Shh<lox> No functional change|Conditional ready Shh<flx> http://identifiers.org/mgd/MGI:1934268 Shh<c>