1DI1 | pdb_00001di1

CRYSTAL STRUCTURE OF ARISTOLOCHENE SYNTHASE FROM PENICILLIUM ROQUEFORTI

• PDB DOI: https://doi.org/10.2210/pdb1DI1/pdb

• Classification: LYASE
• Organism(s): Penicillium roqueforti
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1999-11-28 Released: 2000-08-30 
• Deposition Author(s): Caruthers, J.M., Kang, I., Cane, D.E., Christianson, D.W., Rynkiewicz, M.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 
  0.273 (Depositor) 
• R-Value Work: 
  0.247 (Depositor) 
• R-Value Observed: 
  0.248 (Depositor) 

Literature

Crystal structure determination of aristolochene synthase from the blue cheese mold, Penicillium roqueforti.

Caruthers, J.M., Kang, I., Rynkiewicz, M.J., Cane, D.E., Christianson, D.W.

(2000) J Biological Chem 275: 25533-25539

• PubMed: 10825154 
• DOI: https://doi.org/10.1074/jbc.M000433200
• Primary Citation Related Structures: 
  1DGP, 1DI1


• PubMed Abstract: 
  

  The 2.5-A resolution crystal structure of recombinant aristolochene synthase from the blue cheese mold, Penicillium roqueforti, is the first of a fungal terpenoid cyclase. The structure of the enzyme reveals active site features that participate in the cyclization of the universal sesquiterpene cyclase substrate, farnesyl diphosphate, to form the bicyclic hydrocarbon aristolochene. Metal-triggered carbocation formation initiates the cyclization cascade, which proceeds through multiple complex intermediates to yield one exclusive structural and stereochemical isomer of aristolochene. Structural homology of this fungal cyclase with plant and bacterial terpenoid cyclases, despite minimal amino acid sequence identity, suggests divergence from a common, primordial ancestor in the evolution of terpene biosynthesis.

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Organizational Affiliation: 
• Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia 19104-6323, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 68.99 kDa 
• Atom Count: 5,023 
• Modeled Residue Count: 580 
• Deposited Residue Count: 600 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ARISTOLOCHENE SYNTHASE	A, B	300	Penicillium roqueforti	Mutation(s): 0  EC: 4.1.99.7 (PDB Primary Data), 4.2.3.9 (UniProt)
UniProt
Find proteins for Q03471 (Penicillium roqueforti) Explore Q03471  Go to UniProtKB:  Q03471

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free:  0.273 (Depositor) 
• R-Value Work:  0.247 (Depositor) 
• R-Value Observed: 0.248 (Depositor) 

Space Group: I 4 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 208.2	α = 90
b = 208.2	β = 90
c = 139.6	γ = 90

Software Package:

Software Name	Purpose
PHASES	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-08-30 
Deposition Author(s): Caruthers, J.M., Kang, I., Cane, D.E., Christianson, D.W., Rynkiewicz, M.J.

Revision History  

• Version 1.0: 2000-08-30
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references