Volume 56, Issue 17 pp. 4749-4752
Communication

Discovery and Characterization of a New Family of Diterpene Cyclases in Bacteria and Fungi

Dr. Yan-long Yang

Dr. Yan-long Yang

State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101 China

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Shasha Zhang

Shasha Zhang

Chinese Academy of Sciences Key Laboratory of Microbial, Physiological, and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101 China

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Ke Ma

Ke Ma

State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101 China

Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100049 China

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Yuxing Xu

Yuxing Xu

Key Laboratory of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 Yunnan, China

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Qiaoqiao Tao

Qiaoqiao Tao

State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101 China

Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100049 China

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Prof. Dr. Yihua Chen

Prof. Dr. Yihua Chen

State Key Laboratory of Microbial Resources, Yunnan Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101 China

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Dr. Juan Chen

Dr. Juan Chen

Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193 China

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Prof. Dr. Shunxing Guo

Prof. Dr. Shunxing Guo

Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193 China

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Dr. Jinwei Ren

Dr. Jinwei Ren

State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101 China

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Dr. Wenzhao Wang

Dr. Wenzhao Wang

State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101 China

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Prof. Dr. Yong Tao

Prof. Dr. Yong Tao

Chinese Academy of Sciences Key Laboratory of Microbial, Physiological, and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101 China

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Prof. Dr. Wen-Bing Yin

Prof. Dr. Wen-Bing Yin

State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101 China

Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100049 China

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Prof. Dr. Hongwei Liu

Corresponding Author

Prof. Dr. Hongwei Liu

State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101 China

Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100049 China

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First published: 28 March 2017
Citations: 78

Graphical Abstract

Full circle: EriG, a member of the UbiA superfamily, was identified as the enzyme responsible for the cyclization of the cyathane skeleton in the mushroom Hericium erinaceum. Genome mining using the EriG protein sequence led to the identification of a new family of widespread UbiA-related diterpene cyclase genes in bacteria and fungi.

Abstract

Diterpene cyclases from bacteria and basidiomycete fungi are seldom studied. Here, we presented the identification and verification of EriG, a member of the UbiA superfamily, as the enzyme responsible for the cyclization of the cyathane skeleton in the mushroom Hericium erinaceum. Genome mining using the EriG protein sequence as a probe led to the discovery of a new family of ubiquitous UbiA-related diterpene cyclases in bacteria and fungi. We successfully characterized seven new diterpene cyclases from bacteria or basidiomycete fungi with the help of an engineered Escherichia coli strain and determined the structures of their corresponding products. A new diterpene with an unusual skeleton was generated during this process. The discovery of this new family of diterpene cyclases provides new insight into the UbiA superfamily.

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