Hedgehog Signaling Pathway Database
Oh, those crazy geneticists! Who thinks of naming a gene  “Hedgehog”, anyway?  The name may be frivolous, but the Hedgehog  Signaling Pathway is certainly not, as it is required during the  embryogenesis of many organisms. The Hedgehog Signaling Pathway  Database, through the San Francisco State University, provides a number  of online tools for researchers studying this pathway. There are  diagrams of Hedgehog signal transduction (though not the most polished  diagrams I’ve ever seen), a list of genes involved in Hedgehog  signaling, and a list of Hedgehog-related diseases and human mutations  (along with links to relevant clinical trials).  Additionally, the “Stem  Cells” tab provides links to scientific papers related to stem cells  and the Hedgehog pathway.  Sadly, the “Hedgehog Expression in Tissues”  page is still under construction, so I would continue to check back as  this site continues to develop.

