3W9C

Crystal structure of the electron transfer complex of cytochrome p450cam with putidaredoxin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.185 

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Literature

The Structure of the Cytochrome P450cam-Putidaredoxin Complex Determined by Paramagnetic NMR Spectroscopy and Crystallography.

Hiruma, Y.Hass, M.A.Kikui, Y.Liu, W.M.Olmez, B.Skinner, S.P.Blok, A.Kloosterman, A.Koteishi, H.Lohr, F.Schwalbe, H.Nojiri, M.Ubbink, M.

(2013) J.Mol.Biol. --: --

  • DOI: 10.1016/j.jmb.2013.07.006
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Cytochrome P450cam catalyzes the hydroxylation of camphor in a complex process involving two electron transfers (ETs) from the iron-sulfur protein putidaredoxin. The enzymatic control of the successive steps of catalysis is critical for a highly effi ...

    Cytochrome P450cam catalyzes the hydroxylation of camphor in a complex process involving two electron transfers (ETs) from the iron-sulfur protein putidaredoxin. The enzymatic control of the successive steps of catalysis is critical for a highly efficient reaction. The injection of the successive electrons is part of the control system. To understand the molecular interactions between putidaredoxin and cytochrome P450cam, we determined the structure of the complex both in solution and in the crystal state. Paramagnetic NMR spectroscopy using lanthanide tags yielded 446 structural restraints that were used to determine the solution structure. An ensemble of 10 structures with an RMSD of 1.3Å was obtained. The crystal structure of the complex was solved, showing a position of putidaredoxin that is identical with the one in the solution structure. The NMR data further demonstrate the presence of a minor state or set of states of the complex in solution, which is attributed to the presence of an encounter complex. The structure of the major state shows a small binding interface and a metal-to-metal distance of 16Å, with two pathways that provide strong electronic coupling of the redox centers. The interpretation of these results is discussed in the context of ET. The structure indicates that the ET rate can be much faster than the reported value, suggesting that the process may be gated.


    Organizational Affiliation

    Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands. Electronic address: hirumay@chem.leidenuniv.nl.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Camphor 5-monooxygenase
A
416Pseudomonas putidaMutation(s): 3 
Gene Names: camC (cyp101)
EC: 1.14.15.1
Find proteins for P00183 (Pseudomonas putida)
Go to UniProtKB:  P00183
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Putidaredoxin
B
108Pseudomonas putidaMutation(s): 1 
Gene Names: camB
Find proteins for P00259 (Pseudomonas putida)
Go to UniProtKB:  P00259
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

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Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

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Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
FES
Query on FES

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Download CCD File 
B
FE2/S2 (INORGANIC) CLUSTER
Fe2 S2
NIXDOXVAJZFRNF-UHFFFAOYSA-N
 Ligand Interaction
HEM
Query on HEM

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Download CCD File 
A
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.185 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 101.717α = 90.00
b = 77.991β = 95.57
c = 60.016γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
HKL-2000data reduction
HKL-2000data collection
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-08-21
    Type: Initial release