1N5S

Crystal structure of a Monooxygenase from the gene ActVA-Orf6 of Streptomyces coelicolor in complex with the ligand Acetyl Dithranol


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.206 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure of ActVA-Orf6, a novel type of monooxygenase involved in actinorhodin biosynthesis

Sciara, G.Kendrew, S.G.Miele, A.E.Marsh, N.G.Federici, L.Malatesta, F.Schimperna, G.Savino, C.Vallone, B.

(2003) Embo J. 22: 205-215

  • DOI: 10.1093/emboj/cdg031
  • Primary Citation of Related Structures:  1LQ9, 1N5Q, 1N5T, 1N5V

  • PubMed Abstract: 
  • ActVA-Orf6 monooxygenase from Streptomyces coelicolor that catalyses the oxidation of an aromatic intermediate of the actinorhodin biosynthetic pathway is a member of a class of small monooxygenases that carry out oxygenation without the assistance o ...

    ActVA-Orf6 monooxygenase from Streptomyces coelicolor that catalyses the oxidation of an aromatic intermediate of the actinorhodin biosynthetic pathway is a member of a class of small monooxygenases that carry out oxygenation without the assistance of any of the prosthetic groups, metal ions or cofactors normally associated with activation of molecular oxygen. The overall structure is a ferredoxin-like fold with a novel dimeric assembly, indicating that the widely represented ferredoxin fold may sustain yet another functionality. The resolution (1.3 A) of the enzyme structure and its complex with substrate and product analogues allows us to visualize the mechanism of binding and activation of the substrate for attack by molecular oxygen, and utilization of two gates for the reaction components including a proton gate and an O(2)/H(2)O gate with a putative protein channel. This is the first crystal structure of an enzyme involved in the tailoring of a type II aromatic polyketide and illustrates some of the enzyme-substrate recognition features that may apply to a range of other enzymes involved in modifying a polyketide core structure.


    Related Citations: 
    • Crystallization and preliminary X-ray diffraction studies of a monooxygenase from Streptomyces coelicolor A3(2) involved in the biosynthesis of the polyketide actinorhodin
      Kendrew, S.G.,Federici, L.,Savino, C.,Miele, A.E.,Marsh, N.G.,Vallone, B.
      (2000) Acta Crystallogr.,Sect.D 56: 481
    • Identification of a monooxygenase from Streptomyces coelicolor A3 (2) involved in the biosynthesis of actinorhodin: purification and characterization of the recombinant enzyme
      Kendrew, S.G.,Hopwood, D.A.,Marsh, N.G.
      (1997) J.Bacteriol. 179: 4305


    Organizational Affiliation

    Dipartimento di Scienze Biochimiche and CNR, Centro di Studi sulla Biologia Molecolare, Università di Roma 'La Sapienza', Piazzale A.Moro, 5, 00185 Roma, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ActVA-Orf6 monooxygenase
A, B
112Streptomyces coelicolorGene Names: actVA 6
Find proteins for Q53908 (Streptomyces coelicolor)
Go to UniProtKB:  Q53908
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
1PG
Query on 1PG

Download SDF File 
Download CCD File 
A
2-(2-{2-[2-(2-METHOXY-ETHOXY)-ETHOXY]-ETHOXY}-ETHOXY)-ETHANOL
C11 H24 O6
SLNYBUIEAMRFSZ-UHFFFAOYSA-N
 Ligand Interaction
ADL
Query on ADL

Download SDF File 
Download CCD File 
B
(1,8-DIHYDROXY-9-OXO-9,10-DIHYDRO-ANTHRACEN-2-YL)-ACETIC ACID
ACETYL DITHRANOL
C16 H12 O5
IXLRLZOYKJERRA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.206 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 47.082α = 90.00
b = 59.677β = 90.00
c = 71.648γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-01-14
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Source and taxonomy, Version format compliance