1PS1

PENTALENENE SYNTHASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.198 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of pentalenene synthase: mechanistic insights on terpenoid cyclization reactions in biology.

Lesburg, C.A.Zhai, G.Cane, D.E.Christianson, D.W.

(1997) Science 277: 1820-1824


  • PubMed Abstract: 
  • The crystal structure of pentalenene synthase at 2.6 angstrom resolution reveals critical active site features responsible for the cyclization of farnesyl diphosphate into the tricyclic hydrocarbon pentalenene. Metal-triggered substrate ionization in ...

    The crystal structure of pentalenene synthase at 2.6 angstrom resolution reveals critical active site features responsible for the cyclization of farnesyl diphosphate into the tricyclic hydrocarbon pentalenene. Metal-triggered substrate ionization initiates catalysis, and the alpha-barrel active site serves as a template to channel and stabilize the conformations of reactive carbocation intermediates through a complex cyclization cascade. The core active site structure of the enzyme may be preserved among the greater family of terpenoid synthases, possibly implying divergence from a common ancestral synthase to satisfy biological requirements for increasingly diverse natural products.


    Related Citations: 
    • Pentalenene Synthase. Purification, Molecular Cloning, Sequencing, and High-Level Expression in Escherichia Coli of a Terpenoid Cyclase from Streptomyces Uc5319
      Cane, D.E.,Sohng, J.K.,Lamberson, C.R.,Rudnicki, S.M.,Wu, Z.,Lloyd, M.D.,Oliver, J.S.,Hubbard, B.R.
      (1994) Biochemistry 33: 5846
    • Crystallization and Preliminary X-Ray Diffraction Analysis of Recombinant Pentalenene Synthase
      Lesburg, C.A.,Lloyd, M.D.,Cane, D.E.,Christianson, D.W.
      (1995) Protein Sci. 4: 2436


    Organizational Affiliation

    Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PENTALENENE SYNTHASE
A, B
337Streptomyces exfoliatusGene Names: penA
EC: 4.2.3.7
Find proteins for Q55012 (Streptomyces exfoliatus)
Go to UniProtKB:  Q55012
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PBM
Query on PBM

Download SDF File 
Download CCD File 
A
TRIMETHYL LEAD ION
C3 H9 Pb
SNBFOEGVGALPSE-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.198 
  • Space Group: P 63
Unit Cell:
Length (Å)Angle (°)
a = 178.720α = 90.00
b = 178.720β = 90.00
c = 56.620γ = 120.00
Software Package:
Software NamePurpose
SOLOMONphasing
SCALEPACKdata scaling
DENZOdata reduction
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-03-25
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Source and taxonomy, Version format compliance