5.4.99.37 713230 Dammaradiene synthase, a squalene cyclase, from Dryopteris crassirhizoma Nakai Phytochemistry 69 2559-2564 2008 Dryopteris crassirhizoma http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=18790509&form=6&db=m 5.4.99.37 713230 Dammaradiene synthase, a squalene cyclase, from Dryopteris crassirhizoma Nakai Phytochemistry 69 2559-2564 2008 Dryopteris crassirhizoma Nakai http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=18790509&form=6&db=m