The Comparative Toxicogenomics the Database (CTD) elucidates molecular mechanisms by which environmental chemicals affect human disease. More
Discover.

1. Which human diseases are associated with a gene/protein?
2. Which human diseases are associated with a chemical?
3. Which genes/proteins interact with a chemical?
4. Which chemicals interact with a gene/protein?
5. Which references report a chemical–gene/protein interaction?
6. Which cellular functions (GO terms) are affected by a chemical?

Link: http://ctd.mdibl.org/about/