3OFT

Crystal Structure of Cytochrome P450 CYP101C1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.177 

Starting Model: experimental
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Literature

Structural Analysis of CYP101C1 from Novosphingobium aromaticivorans DSM12444.

Ma, M.Bell, S.G.Yang, W.Hao, Y.Rees, N.H.Bartlam, M.Zhou, W.Wong, L.L.Rao, Z.

(2011) Chembiochem 12: 88-99

  • DOI: https://doi.org/10.1002/cbic.201000537
  • Primary Citation of Related Structures:  
    3OFT, 3OFU

  • PubMed Abstract: 

    CYP101C1 from Novosphingobium aromaticivorans DSM12444 is a homologue of CYP101D1 and CYP101D2 enzymes from the same bacterium and CYP101A1 from Pseudomonas putida. CYP101C1 does not bind camphor but is capable of binding and hydroxylating ionone derivatives including α- and β-ionone and β-damascone. The activity of CYP101C1 was highest with β-damascone (k(cat)=86 s(-1)) but α-ionone oxidation was the most regioselective (98 % at C3). The crystal structures of hexane-2,5-diol- and β-ionone-bound CYP101C1 have been solved; both have open conformations and the hexanediol-bound form has a clear access channel from the heme to the bulk solvent. The entrance of this channel is blocked when β-ionone binds to the enzyme. The heme moiety of CYP101C1 is in a significantly different environment compared to the other structurally characterised CYP101 enzymes. The likely ferredoxin binding site on the proximal face of CYP101C1 has a different topology but a similar overall positive charge compared to CYP101D1 and CYP101D2, all of which accept electrons from the ArR/Arx class I electron transfer system.


  • Organizational Affiliation

    National Laboratory of Macromolecules, Institute of Biophysics, Chinese Academy of Science, Beijing 100101, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Cytochrome P450
A, B, C
396Novosphingobium aromaticivorans DSM 12444Mutation(s): 0 
Gene Names: Saro_2249
UniProt
Find proteins for Q2G637 (Novosphingobium aromaticivorans (strain ATCC 700278 / DSM 12444 / CCUG 56034 / CIP 105152 / NBRC 16084 / F199))
Explore Q2G637 
Go to UniProtKB:  Q2G637
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ2G637
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.177 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.986α = 90
b = 150.148β = 99.89
c = 68.454γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-07-20
    Type: Initial release
  • Version 1.1: 2023-11-01
    Changes: Data collection, Database references, Derived calculations, Refinement description