Structural and functional investigations of syn-copalyl diphosphate synthase from Oryza sativa

Abstract The large superfamily of labdane-related diterpenoids is defined by the cyclization of linear geranylgeranyl pyrophosphate (GGPP), catalyzed by copalyl diphosphate synthases (CPSs) to form the basic decalin core, the copalyl diphosphates (CPPs). Three stereochemically distinct CPPs have bee...

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Main Authors: Xiaoli Ma, Haifeng Xu, Yuru Tong, Yunfeng Luo, Qinghua Dong, Tao Jiang
Format: Article
Language:English
Published: Nature Portfolio 2023-11-01
Series:Communications Chemistry
Online Access:https://doi.org/10.1038/s42004-023-01042-w
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author Xiaoli Ma
Haifeng Xu
Yuru Tong
Yunfeng Luo
Qinghua Dong
Tao Jiang
author_facet Xiaoli Ma
Haifeng Xu
Yuru Tong
Yunfeng Luo
Qinghua Dong
Tao Jiang
author_sort Xiaoli Ma
collection DOAJ
description Abstract The large superfamily of labdane-related diterpenoids is defined by the cyclization of linear geranylgeranyl pyrophosphate (GGPP), catalyzed by copalyl diphosphate synthases (CPSs) to form the basic decalin core, the copalyl diphosphates (CPPs). Three stereochemically distinct CPPs have been found in plants, namely (+)-CPP, ent-CPP and syn-CPP. Here, we used X-ray crystallography and cryo-EM methods to describe different oligomeric structures of a syn-copalyl diphosphate synthase from Oryza sativa (OsCyc1), and provided a cryo-EM structure of OsCyc1D367A mutant in complex with the substrate GGPP. Further analysis showed that tetramers are the dominant form of OsCyc1 in solution and are not necessary for enzyme activity in vitro. Through rational design, we identified an OsCyc1 mutant that can generate ent-CPP in addition to syn-CPP. Our work provides a structural and mechanistic basis for comparing different CPSs and paves the way for further enzyme design to obtain diterpene derivatives with specific chirality.
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spelling doaj.art-1b7cebd16a274e3994bc38ccbda508832023-11-12T12:09:27ZengNature PortfolioCommunications Chemistry2399-36692023-11-016111410.1038/s42004-023-01042-wStructural and functional investigations of syn-copalyl diphosphate synthase from Oryza sativaXiaoli Ma0Haifeng Xu1Yuru Tong2Yunfeng Luo3Qinghua Dong4Tao Jiang5National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of SciencesNational Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of SciencesSchool of Pharmaceutical Sciences, Capital Medical UniversitySchool of Traditional Chinese Medicine, Capital Medical UniversityNational Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of SciencesNational Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of SciencesAbstract The large superfamily of labdane-related diterpenoids is defined by the cyclization of linear geranylgeranyl pyrophosphate (GGPP), catalyzed by copalyl diphosphate synthases (CPSs) to form the basic decalin core, the copalyl diphosphates (CPPs). Three stereochemically distinct CPPs have been found in plants, namely (+)-CPP, ent-CPP and syn-CPP. Here, we used X-ray crystallography and cryo-EM methods to describe different oligomeric structures of a syn-copalyl diphosphate synthase from Oryza sativa (OsCyc1), and provided a cryo-EM structure of OsCyc1D367A mutant in complex with the substrate GGPP. Further analysis showed that tetramers are the dominant form of OsCyc1 in solution and are not necessary for enzyme activity in vitro. Through rational design, we identified an OsCyc1 mutant that can generate ent-CPP in addition to syn-CPP. Our work provides a structural and mechanistic basis for comparing different CPSs and paves the way for further enzyme design to obtain diterpene derivatives with specific chirality.https://doi.org/10.1038/s42004-023-01042-w
spellingShingle Xiaoli Ma
Haifeng Xu
Yuru Tong
Yunfeng Luo
Qinghua Dong
Tao Jiang
Structural and functional investigations of syn-copalyl diphosphate synthase from Oryza sativa
Communications Chemistry
title Structural and functional investigations of syn-copalyl diphosphate synthase from Oryza sativa
title_full Structural and functional investigations of syn-copalyl diphosphate synthase from Oryza sativa
title_fullStr Structural and functional investigations of syn-copalyl diphosphate synthase from Oryza sativa
title_full_unstemmed Structural and functional investigations of syn-copalyl diphosphate synthase from Oryza sativa
title_short Structural and functional investigations of syn-copalyl diphosphate synthase from Oryza sativa
title_sort structural and functional investigations of syn copalyl diphosphate synthase from oryza sativa
url https://doi.org/10.1038/s42004-023-01042-w
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