7CPY

Lovastatin nonaketide synthase with LovC


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural basis for the biosynthesis of lovastatin.

Wang, J.Liang, J.Chen, L.Zhang, W.Kong, L.Peng, C.Su, C.Tang, Y.Deng, Z.Wang, Z.

(2021) Nat Commun 12: 867-867

  • DOI: https://doi.org/10.1038/s41467-021-21174-8
  • Primary Citation of Related Structures:  
    7CPX, 7CPY

  • PubMed Abstract: 

    Statins are effective cholesterol-lowering drugs. Lovastatin, one of the precursors of statins, is formed from dihydromonacolin L (DML), which is synthesized by lovastatin nonaketide synthase (LovB), with the assistance of a separate trans-acting enoyl reductase (LovC). A full DML synthesis comprises 8 polyketide synthetic cycles with about 35 steps. The assembling of the LovB-LovC complex, and the structural basis for the iterative and yet permutative functions of the megasynthase have remained a mystery. Here, we present the cryo-EM structures of the LovB-LovC complex at 3.60 Å and the core LovB at 2.91 Å resolution. The domain organization of LovB is an X-shaped face-to-face dimer containing eight connected domains. The binding of LovC laterally to the malonyl-acetyl transferase domain allows the completion of a L-shaped catalytic chamber consisting of six active domains. This architecture and the structural details of the megasynthase provide the basis for the processing of the intermediates by the individual catalytic domains. The detailed architectural model provides structural insights that may enable the re-engineering of the megasynthase for the generation of new statins.


  • Organizational Affiliation

    State Key Laboratory of Microbial Metabolism and School of Life Science & Biotechnology, Shanghai Jiao Tong University, Shanghai, China.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Lovastatin nonaketide synthase, enoyl reductase component lovCA [auth C],
B [auth D]
371Aspergillus terreusMutation(s): 0 
Gene Names: lovC
EC: 2.3.1.161
UniProt
Find proteins for Q9Y7D0 (Aspergillus terreus)
Explore Q9Y7D0 
Go to UniProtKB:  Q9Y7D0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9Y7D0
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Lovastatin nonaketide synthase, polyketide synthase componentC [auth A],
D [auth B]
3,046Aspergillus terreusMutation(s): 2 
Gene Names: lovB
EC: 2.3.1.161
UniProt
Find proteins for Q9Y8A5 (Aspergillus terreus)
Explore Q9Y8A5 
Go to UniProtKB:  Q9Y8A5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9Y8A5
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Science Foundation (NSF, China)China31470830

Revision History  (Full details and data files)

  • Version 1.0: 2021-01-13
    Type: Initial release
  • Version 1.1: 2021-01-20
    Changes: Derived calculations
  • Version 1.2: 2021-12-15
    Changes: Database references, Structure summary
  • Version 1.3: 2024-05-29
    Changes: Data collection