Genome mining of cyclodipeptide synthases unravels unusual tRNA-dependent diketopiperazine-terpene biosynthetic machinery.
Genome mining of cyclodipeptide synthases unravels unusual tRNA-dependent diketopiperazine-terpene biosynthetic machinery.
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环二肽合酶的基因组挖掘揭示了不寻常的 tRNA 依赖性二酮哌嗪-萜烯生物合成机制
DOI:
10.1038/s41467-018-06411-x
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发表时间:
2018-10-05
影响因子:
16.6
通讯作者:
Li W
中科院分区:
文献类型:
--
作者:
Yao T;Liu J;Liu Z;Li T;Li H;Che Q;Zhu T;Li D;Gu Q;Li W
Cyclodipeptide synthases (CDPSs) can catalyze the formation of two successive peptide bonds by hijacking aminoacyl-tRNAs from the ribosomal machinery resulting in diketopiperazines (DKPs). Here, three CDPS-containing loci (dmt1–3) are discovered by genome mining and comparative genome analysis of Streptomyces strains. Among them, CDPS DmtB1, encoded by the gene of dmt1 locus, can synthesize cyclo(L-Trp-L-Xaa) (with Xaa being Val, Pro, Leu, Ile, or Ala). Systematic mutagenesis experiments demonstrate the importance of the residues constituting substrate-binding pocket P1 for the incorporation of the second aa-tRNA in DmtB1. Characterization of dmt1–3 unravels that CDPS-dependent machinery is involved in CDPS-synthesized DKP formation followed by tailoring steps of prenylation and cyclization to afford terpenylated DKP compounds drimentines. A phytoene-synthase-like family prenyltransferase (DmtC1) and a membrane terpene cyclase (DmtA1) are required for drimentines biosynthesis. These results set the foundation for further increasing the natural diversity of complex DKP derivatives. Diketopiperazine derivatives are bioactive molecules with scaffold formed by the condensation of two amino acids. Here, Yao et al. mine the genomes of Streptomyces strains and identify new biosynthetic machinery for drimentines biosynthesis, which includes cyclodipeptide synthase, prenyltransferase, and terpene cyclase.
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DOI:
10.1073/pnas.1019480108
发表时间:
2011-03-08
影响因子:
11.1
作者:
Bonnefond, Luc;Arai, Taiga;Nureki, Osamu
通讯作者:
Nureki, Osamu
影响因子:
2.1
作者:
Ishikawa, J;Hotta, K
通讯作者:
Hotta, K
影响因子:
2.9
作者:
Giessen, Tobias W.;von Tesmar, Alexander M.;Marahiel, Mohamed A.
通讯作者:
Marahiel, Mohamed A.
影响因子:
--
作者:
Giessen, Tobias W.;von Tesmar, Alexander M.;Marahiel, Mohamed A.
通讯作者:
Marahiel, Mohamed A.
影响因子:
1.6
作者:
Kanoh, K;Kohno, S;Uno, I
通讯作者:
Uno, I