5GM2:
reference: Crystal Structure and Enantioselectivity of Terpene Cyclization in SAM Dependent Methyltransferase TleD., Yu F, Li M, Xu C, Sun B, Zhou H, Wang Z, Xu Q, Xie M, Zuo G, Huang P, Guo H, Wang Q, He J, Biochem J. 2016 Sep 9. pii: BCJ20160695. PMID: 27613858

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