PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 30654553-6 2019 They differ in their stereochemistry, since these diterpenes are characterized by a trans ring fusion at the decalin moiety and the relative configuration of the two methyl groups at C-8 and C-9 in a cis relationship (type trans/cis). Diterpenes 50-60 homeobox C8 Homo sapiens 183-194