Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba-yama, Aoba-ku, Sendai 980-8578, Japan.
Org Lett. 2013 Jul 5;15(13):3346-9. doi: 10.1021/ol401386w. Epub 2013 Jun 14.
Epigenetic manipulation of gene expression in Chaetomium indicum using a HDAC inhibitor led to the isolation of structurally diverse chaetophenols, and 3, 4 and 5 bear unprecedented polycyclic skeletons. The expression of two silent genes (pksCH-1 and pksCH-2) for nonreducing PKSs involved in chaetophenol biosynthesis was associated with an increase of histone acetylation level. The heterologous gene expression study in Aspergillus oryzae revealed pksCH-2 to be the NR-PKS gene for 8.
利用组蛋白去乙酰化酶抑制剂对 Chaetomium indicum 中的基因表达进行表观遗传调控,导致了结构多样的 chaetophenols 的分离,其中 3、4 和 5 具有前所未有的多环骨架。两个参与 chaetophenol 生物合成的非还原性聚酮合酶(pksCH-1 和 pksCH-2)的沉默基因的表达与组蛋白乙酰化水平的增加有关。在 Aspergillus oryzae 中的异源基因表达研究表明,pksCH-2 是 NR-PKS 基因,用于合成 8。