Enzymic formation of a tricyclic sesterterpene alcohol from mevalonic acid and all-trans-geranylfarnesyl pyrophosphate
作者:Shigeo Nozoe、Masuo Morisaki
DOI:10.1039/c29690001319
日期:——
Mevalonicacid lactone and the chemically synthesized all-trans-geranylfarnesylpyrophosphate are converted into a tricyclicsesterterpenealcohol, ophiobolin F, by incubation with 100,000 ×g supernatant fraction from cell-free system of Chochlibolus heterostrophus.
Subrutilane—A Hexacyclic Sesterterpene from <i>Streptomyces subrutilus</i>
作者:Binbin Gu、Bernd Goldfuss、Gregor Schnakenburg、Jeroen S. Dickschat
DOI:10.1002/anie.202313789
日期:2023.11.27
Genome mining uncovered a terpene synthase from Streptomyces subrutilus that produces the first known hexacyclic sesterterpene with no double bonds as the main product, as well as eight pentacyclic products. Isotopic labelling experiments and DFT calculations revealed a cyclisation cascade via several well-stabilised secondary cations. The enzyme also converted several substrate analogues into sesterterpenoid