PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17985917-1 2007 We establish by heterologous expression that the Arabidopsis thaliana oxidosqualene cyclase At1g78955 (CAMS1) makes camelliol C (98%), achilleol A (2%), and beta-amyrin (0.2%). beta-amyrin 157-168 camelliol C synthase 1 Arabidopsis thaliana 103-108 17985917-3 2007 Phylogenetic analysis shows that CAMS1 evolved from enzymes that make pentacycles, thus revealing that its pentacyclic beta-amyrin byproduct is an evolutionary relic. beta-amyrin 119-130 camelliol C synthase 1 Arabidopsis thaliana 33-38