3SDV

Structure of a three-domain sesquiterpene synthase: a prospective target for advanced biofuels production


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.178 

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Literature

Structure of a three-domain sesquiterpene synthase: a prospective target for advanced biofuels production.

McAndrew, R.P.Peralta-Yahya, P.P.DeGiovanni, A.Pereira, J.H.Hadi, M.Z.Keasling, J.D.Adams, P.D.

(2011) Structure 19: 1876-1884

  • DOI: https://doi.org/10.1016/j.str.2011.09.013
  • Primary Citation of Related Structures:  
    3SAE, 3SDQ, 3SDR, 3SDT, 3SDU, 3SDV

  • PubMed Abstract: 

    The sesquiterpene bisabolene was recently identified as a biosynthetic precursor to bisabolane, an advanced biofuel with physicochemical properties similar to those of D2 diesel. High-titer microbial bisabolene production was achieved using Abies grandis α-bisabolene synthase (AgBIS). Here, we report the structure of AgBIS, a three-domain plant sesquiterpene synthase, crystallized in its apo form and bound to five different inhibitors. Structural and biochemical characterization of the AgBIS terpene synthase Class I active site leads us to propose a catalytic mechanism for the cyclization of farnesyl diphosphate into bisabolene via a bisabolyl cation intermediate. Further, we describe the nonfunctional AgBIS Class II active site whose high similarity to bifunctional diterpene synthases makes it an important link in understanding terpene synthase evolution. Practically, the AgBIS crystal structure is important in future protein engineering efforts to increase the microbial production of bisabolene.


  • Organizational Affiliation

    Joint BioEnergy Institute, 5885 Hollis Avenue, Emeryville, CA 94608, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Alpha-bisabolene synthase817Abies grandisMutation(s): 0 
Gene Names: ag1
EC: 4.2.3.38
UniProt
Find proteins for O81086 (Abies grandis)
Explore O81086 
Go to UniProtKB:  O81086
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO81086
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.178 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 156.771α = 90
b = 55.002β = 119.3
c = 127.29γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-12-14
    Type: Initial release
  • Version 1.1: 2012-03-28
    Changes: Database references
  • Version 1.2: 2024-02-28
    Changes: Data collection, Database references, Derived calculations