2CPP

HIGH-RESOLUTION CRYSTAL STRUCTURE OF CYTOCHROME P450-CAM


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.63 Å
  • R-Value Observed: 0.190 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

High-resolution crystal structure of cytochrome P450cam.

Poulos, T.L.Finzel, B.C.Howard, A.J.

(1987) J Mol Biol 195: 687-700

  • DOI: 10.1016/0022-2836(87)90190-2
  • Primary Citation of Related Structures:  
    2CPP

  • PubMed Abstract: 
  • The crystal structure of Pseudomonas putida cytochrome P450cam with its substrate, camphor, bound has been refined to R = 0.19 at a normal resolution of 1.63 A. While the 1.63 A model confirms our initial analysis based on the 2.6 A model, the higher resolution structure has revealed important new details ...

    The crystal structure of Pseudomonas putida cytochrome P450cam with its substrate, camphor, bound has been refined to R = 0.19 at a normal resolution of 1.63 A. While the 1.63 A model confirms our initial analysis based on the 2.6 A model, the higher resolution structure has revealed important new details. These include a more precise assignment of sequence to secondary structure, the identification of three cis-proline residues, and a more detailed picture of substrate-protein interactions. In addition, 204 ordered solvent molecules have been found, one of which appears to be a cation. The cation stabilizes an unfavorable polypeptide conformation involved in forming part of the active site pocket, suggesting that the cation may be the metal ion binding site associated with the well-known ability of metal ions to enhance formation of the enzyme-substrate complex. Another unusual polypeptide conformation forms the proposed oxygen-binding pocket. A localized distortion and widening of the distal helix provides a pocket for molecular oxygen. An intricate system of side-chain to backbone hydrogen bonds aids in stabilizing the required local disruption in helical geometry. Sequence homologies strongly suggest a common oxygen-binding pocket in all P450 species. Further sequence comparisons between P450 species indicate common three-dimensional structures with changes focused in a region of the molecule postulated to be associated with the control of substrate specificity.


    Related Citations: 
    • The 2.6-Angstroms Crystal Structure of Pseudomonas Putida Cytochrome P450
      Poulos, T.L., Finzel, B.C., Gunsalus, I.C., Wagner, G.C., Kraut, J.
      (1985) J Biol Chem 260: 16122
    • Crystal Structure of Substrate-Free Pseudomonas Putida Cytochrome P450
      Poulos, T.L., Finzel, B.C., Howard, A.J.
      (1986) Biochemistry 25: 5314
    • Heme Enzyme Structure and Function
      Poulos, T.L., Finzel, B.C.
      (1984) Pept Protein Rev 4: 115
    • Preliminary Crystallographic Data on Cytochrome P450-Cam
      Poulos, T.L., Perez, M., Wagner, G.C.
      (1982) J Biol Chem 257: 10427
    • The Primary Structure of the Monoxygenase Cytochrome P450-Cam
      Haniu, M., Armes, L.G., Tanaka, M., Yasunobu, K.T., Shastry, B.S., Wagner, G.C., Gunsalus, I.C.
      (1982) Biochem Biophys Res Commun 105: 889

    Organizational Affiliation

    Protein Engineering Department, Genex Corporation, Gaithérsburg, MD 20877.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CYTOCHROME P450-CAMA414Pseudomonas putidaMutation(s): 0 
Gene Names: camCcyp101
EC: 1.14.15.1
UniProt
Find proteins for P00183 (Pseudomonas putida)
Explore P00183 
Go to UniProtKB:  P00183
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM (Subject of Investigation/LOI)
Query on HEM

Download Ideal Coordinates CCD File 
B [auth A]PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
CAM (Subject of Investigation/LOI)
Query on CAM

Download Ideal Coordinates CCD File 
C [auth A]CAMPHOR
C10 H16 O
DSSYKIVIOFKYAU-XCBNKYQSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.63 Å
  • R-Value Observed: 0.190 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 108.67α = 90
b = 103.9β = 90
c = 36.38γ = 90
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

  • Deposited Date: 1987-04-06 
  • Released Date: 1987-07-16 
  • Deposition Author(s): Poulos, T.L.
  • This entry supersedes: 1CPP

Revision History  (Full details and data files)

  • Version 1.0: 1987-07-16
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-11-29
    Changes: Derived calculations, Other