5IK0

Tobacco 5-epi-aristolochene synthase with FPP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.167 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Biosynthetic potential of sesquiterpene synthases: product profiles of Egyptian Henbane premnaspirodiene synthase and related mutants.

Koo, H.J.Vickery, C.R.Xu, Y.Louie, G.V.O'Maille, P.E.Bowman, M.Nartey, C.M.Burkart, M.D.Noel, J.P.

(2016) J.Antibiot. 69: 524-533

  • DOI: 10.1038/ja.2016.68
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The plant terpene synthase (TPS) family is responsible for the biosynthesis of a variety of terpenoid natural products possessing diverse biological functions. TPSs catalyze the ionization and, most commonly, rearrangement and cyclization of prenyl d ...

    The plant terpene synthase (TPS) family is responsible for the biosynthesis of a variety of terpenoid natural products possessing diverse biological functions. TPSs catalyze the ionization and, most commonly, rearrangement and cyclization of prenyl diphosphate substrates, forming linear and cyclic hydrocarbons. Moreover, a single TPS often produces several minor products in addition to a dominant product. We characterized the catalytic profiles of Hyoscyamus muticus premnaspirodiene synthase (HPS) and compared it with the profile of a closely related TPS, Nicotiana tabacum 5-epi-aristolochene synthase (TEAS). The profiles of two previously studied HPS and TEAS mutants, each containing nine interconverting mutations, dubbed HPS-M9 and TEAS-M9, were also characterized. All four TPSs were compared under varying temperature and pH conditions. In addition, we solved the X-ray crystal structures of TEAS and a TEAS quadruple mutant complexed with substrate and products to gain insight into the enzymatic features modulating product formation. These informative structures, along with product profiles, provide new insight into plant TPS catalytic promiscuity.


    Organizational Affiliation

    Howard Hughes Medical Institute, The Salk Institute for Biological Studies, Jack H Skirball Center for Chemical Biology and Proteomics, La Jolla, CA, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
5-epi-aristolochene synthase
A
550Nicotiana tabacumMutation(s): 0 
Gene Names: EAS3, EAS4
EC: 4.2.3.61
Find proteins for Q40577 (Nicotiana tabacum)
Go to UniProtKB:  Q40577
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
FPP
Query on FPP

Download SDF File 
Download CCD File 
A
FARNESYL DIPHOSPHATE
C15 H28 O7 P2
VWFJDQUYCIWHTN-YFVJMOTDSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.167 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 127.660α = 90.00
b = 127.660β = 90.00
c = 124.670γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
iMOSFLMdata reduction
PHENIXrefinement
PHENIXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-10-05
    Type: Initial release