Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 48196.47 
• Atom Count: 3282 
• Residue Count: 420 
• Unique protein chains: 1

1P2Y

CRYSTAL STRUCTURE OF CYTOCHROME P450CAM IN COMPLEX WITH (S)-(-)-NICOTINE

• DOI: 10.2210/pdb1P2Y/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Pseudomonas putida
• Expression System: Escherichia coli


• Deposited: 2003-04-16 Released: 2003-10-28 
• Deposition Author(s): Strickler, M., Goldstein, B.M., Maxfield, K., Shireman, L., Kim, G., Matteson, D., Jones, J.P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.263 
• R-Value Work: 0.223 

Literature

Crystallographic Studies on the Complex Behavior of Nicotine Binding to P450cam (CYP101)(dagger).

Strickler, M., Goldstein, B.M., Maxfield, K., Shireman, L., Kim, G., Matteson, D., Jones, J.P.

(2003) Biochemistry 42: 11943-11950

• PubMed: 14556625 
• DOI: 10.1021/bi034833o
• Primary Citation of Related Structures:  
  1P7R


• PubMed Abstract: 
  

Crystallographic and spectroscopic studies have been undertaken to characterize the binding behavior of the non-native substrate nicotine in the active site of the monooxygenase hemoprotein cytochrome P450cam. Despite the existence of a theoretical model that is consistent with the observed distribution of monooxygenation products, the crystal structure of the complex indicates that the primary binding mode of nicotine is unproductive. The structure is confirmed by spectral data that indicate direct coordination of substrate pyridine nitrogen with the heme iron. This would be the proper structure for evaluating binding affinity and inhibition. Reduction of the heme from Fe(III) to Fe(II) and introduction of carbon monoxide into crystals of the nicotine-P450cam complex, to simulate molecular oxygen binding, produces reorientation of the nicotine. This orientation is the appropriate one for predicting regioselectivity and the kinetic features of substrate oxidation. While it is not clear that such complicated behavior will be exhibited for other enzyme-substrate interactions, it is clear that a single crystal structure for a given substrate-enzyme interaction may not provide a good description of the binding mode responsible for product formation.

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Organizational Affiliation: 

Department of Biophysics, University of Rochester, Rochester, New York 14627, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Cytochrome P450-cam	A	420	Pseudomonas putida	Mutation(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
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
NCT	A	(S)-3-(1-METHYLPYRROLIDIN-2-YL)PYRIDINE (S)-(-)-NICOTINE, 3-[(2S)-1-METHYL-2-PYRROLIDINYL] PYRIDINE C10 H14 N2 SNICXCGAKADSCV-JTQLQIEISA-N
HEM	A	PROTOPORPHYRIN IX CONTAINING FE HEME C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.263 
• R-Value Work: 0.223 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length (Å)	Angle (°)
a = 64.050	α = 90.00
b = 64.050	β = 90.00
c = 251.060	γ = 90.00

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
X-PLOR	phasing
CNS	refinement
DENZO	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-04-16 
• Released Date: 2003-10-28 
• Deposition Author(s): Strickler, M., Goldstein, B.M., Maxfield, K., Shireman, L., Kim, G., Matteson, D., Jones, J.P.

Revision History 

• Version 1.0: 2003-10-28
  Type: Initial release
• Version 1.1: 2008-04-29
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance