2CPP

HIGH-RESOLUTION CRYSTAL STRUCTURE OF CYTOCHROME P450-CAM


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.63 Å

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

  • Also Cited By: 1UYU, 1O76, 1GJM, 1DZ9, 1DZ8, 1DZ6, 1DZ4

  • 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 ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME P450-CAM
A
414Pseudomonas putidaMutation(s): 0 
Gene Names: camC (cyp101)
EC: 1.14.15.1
Find proteins for P00183 (Pseudomonas putida)
Go to UniProtKB:  P00183
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CAM
Query on CAM

Download SDF File 
Download CCD File 
A
CAMPHOR
C10 H16 O
DSSYKIVIOFKYAU-XCBNKYQSSA-N
 Ligand Interaction
HEM
Query on HEM

Download SDF File 
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: 1.63 Å
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 108.670α = 90.00
b = 103.900β = 90.00
c = 36.380γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



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 

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