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Analysis of Cytochrome P450 CYP119 Ligand-dependent Conformational Dynamics by Two-dimensional NMR and X-ray Crystallography

Journal Article · · Journal of Biological Chemistry
 [1];  [2];  [3];  [4];  [2];  [2]
  1. Univ. of California, San Francisco, CA (United States); Office of Scientific and Technical Information (OSTI)
  2. Univ. of California, San Francisco, CA (United States)
  3. XenoTech, LLC, Lenexa, KA (United States)
  4. Univ. of Kansas Medical Center, Kansas City, KA (United States)

Defining the conformational states of cytochrome P450 active sites is critical for the design of agents that minimize drug-drug interactions, the development of isoform-specific P450 inhibitors, and the engineering of novel oxidative catalysts. In this paper, we used two-dimensional 1H,15N HSQC chemical shift perturbation mapping of 15N-labeled Phe residues and x-ray crystallography to examine the ligand-dependent conformational dynamics of CYP119. Active site Phe residues were most affected by the binding of azole inhibitors and fatty acid substrates, in agreement with active site localization of the conformational changes. This was supported by crystallography, which revealed movement of the F-G loop with various azoles. Nevertheless, the NMR chemical shift perturbations caused by azoles and substrates were distinguishable. The absence of significant chemical shift perturbations with several azoles revealed binding of ligands to an open conformation similar to that of the ligand-free state. In contrast, 4-phenylimidazole caused pronounced NMR changes involving Phe-87, Phe-144, and Phe-153 that support the closed conformation found in the crystal structure. The same closed conformation is observed by NMR and crystallography with a para-fluoro substituent on the 4-phenylimidazole, but a para-chloro or bromo substituent engendered a second closed conformation. An open conformation is thus favored in solution with many azole ligands, but para-substituted phenylimidazoles give rise to two closed conformations that depend on the size of the para-substituent. Finally, the results suggest that ligands selectively stabilize discrete cytochrome P450 conformational states.

Research Organization:
Univ. of California, San Francisco, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Grant/Contract Number:
AC02-05CH11231; AC02-76SF00515
OSTI ID:
1349037
Journal Information:
Journal of Biological Chemistry, Journal Name: Journal of Biological Chemistry Journal Issue: 16 Vol. 290; ISSN 0021-9258
Publisher:
American Society for Biochemistry and Molecular BiologyCopyright Statement
Country of Publication:
United States
Language:
English

References (64)

Calculated and Experimental Spin State of Seleno Cytochrome P450 journal September 2009
Characterization of a Cytochrome P450 from the Acidothermophilic ArchaeaSulfolobus solfataricus journal November 1998
Ketoconazole-induced conformational changes in the active site of cytochrome P450eryF journal August 2001
Polyaromatic hydrocarbon exposure: an ecological impact ambiguity journal March 2013
The binding to oxidised cytochromes P-450 and inhibition of mixed-function oxidases by aryl-substituted benzimidazoles and related compounds journal March 1983
High-resolution crystal structure of cytochrome P450cam journal June 1987
Aromatic stacking as a determinant of the thermal stability of CYP119 from Sulfolobus solfataricus journal January 2003
Spectroscopic characterization of a newly isolated cytochrome P450 from Rhodococcus rhodochrous journal August 1993
The 2.6-A crystal structure of Pseudomonas putida cytochrome P-450. journal December 1985
Results of the ATAC (Arimidex, Tamoxifen, Alone or in Combination) trial after completion of 5 years' adjuvant treatment for breast cancer journal January 2005
Switching of postmenopausal women with endocrine-responsive early breast cancer to anastrozole after 2 years' adjuvant tamoxifen: combined results of ABCSG trial 8 and ARNO 95 trial journal August 2005
Thermophilic cytochrome P450 (CYP119) from Sulfolobus solfataricus: high resolution structure and functional properties journal September 2002
Active-site residues move independently from the rest of the protein in a 200ns molecular dynamics simulation of cytochrome P450 CYP119 journal May 2011
Thermophilic cytochrome P450 enzymes journal December 2005
Pharmacogenetics of cytochrome P450 and its applications in drug therapy: the past, present and future journal April 2004
Crystal structures of cytochrome P-450CAM complexed with camphane, thiocamphor, and adamantane: factors controlling P-450 substrate hydroxylation journal March 1991
Crystal structure of substrate-free Pseudomonas putida cytochrome P-450 journal September 1986
A Model for Effector Activity in a Highly Specific Biological Electron Transfer Complex:  The Cytochrome P450 c am −Putidaredoxin Couple , journal May 2003
NMR Studies of Ligand Binding to P450 e ryF Provides Insight into the Mechanism of Cooperativity journal February 2006
Three Clusters of Conformational States in P450cam Reveal a Multistep Pathway for Closing of the Substrate Access Channel, journal February 2011
Solution Structural Ensembles of Substrate-Free Cytochrome P450 cam journal April 2012
Understanding the Role of the Essential Asp251 in Cytochrome P450cam Using Site-Directed Mutagenesis, Crystallography, and Kinetic Solvent Isotope Effect journal June 1998
Cytochrome P450 and Aromatic Bases: A 1H NMR Study journal June 1994
Ligand-Induced Conformational Heterogeneity of Cytochrome P450 CYP119 Identified by 2D NMR Spectroscopy with the Unnatural Amino Acid 13 C- p -Methoxyphenylalanine journal December 2008
Rapid and accurate calculation of protein 1H, 13C and 15N chemical shifts journal July 2003
The role of cytochrome P450 enzymes in endogenous signalling pathways and environmental carcinogenesis journal December 2006
The druggable genome journal September 2002
The structure of the cytochrome p450BM-3 haem domain complexed with the fatty acid substrate, palmitoleic acid journal February 1997
Dynamic Interaction Between Membrane-Bound Full-Length Cytochrome P450 and Cytochrome b5 Observed by Solid-State NMR Spectroscopy journal August 2013
Structural basis for ligand promiscuity in cytochrome P450 3A4 journal September 2006
Crystal structure of cytochrome P450 14 -sterol demethylase (CYP51) from Mycobacterium tuberculosis in complex with azole inhibitors journal March 2001
Structures of invisible, excited protein states by relaxation dispersion NMR spectroscopy journal August 2008
Accessing protein conformational ensembles using room-temperature X-ray crystallography journal September 2011
Double electron-electron resonance shows cytochrome P450cam undergoes a conformational change in solution upon binding substrate journal July 2012
Probing the open state of cytochrome P450cam with ruthenium-linker substrates journal October 2001
The Active Site of the Thermophilic CYP119 from Sulfolobus solfataricus journal May 2000
Crystal Structure of a Thermophilic Cytochrome P450 from the Archaeon Sulfolobus solfataricus journal June 2000
Two-dimensional NMR and All-atom Molecular Dynamics of Cytochrome P450 CYP119 Reveal Hidden Conformational Substates journal January 2010
A Model of the Membrane-bound Cytochrome b 5 -Cytochrome P450 Complex from NMR and Mutagenesis Data journal May 2013
Substrate-modulated Cytochrome P450 17A1 and Cytochrome b 5 Interactions Revealed by NMR journal April 2013
Human Cytochrome P450 17A1 Conformational Selection: MODULATION BY LIGAND AND CYTOCHROME b journal March 2014
Structure of Mammalian Cytochrome P450 2B4 Complexed with 4-(4-Chlorophenyl)imidazole at 1.9-Å Resolution: INSIGHT INTO THE RANGE OF P450 CONFORMATIONS AND THE COORDINATION OF REDOX PARTNER BINDING journal April 2004
Conformational Flexibility of Mammalian Cytochrome P450 2B4 in Binding Imidazole Inhibitors with Different Ring Chemistry and Side Chains: SOLUTION THERMODYNAMICS AND MOLECULAR MODELING journal January 2006
Mycobacterium tuberculosis CYP130 journal December 2007
Metabolism-Based drug Interactions Involving oral Azole Antifungals in Humans* journal January 1999
Protein engineering of cytochrome P450cam (CYP101) for the oxidation of polycyclic aromatic hydrocarbons journal February 2000
Laboratory evolution of P450 BM3 for mediated electron transfer yielding an activity-improved and reductase-independent variant journal December 2007
Crystallization and preliminary X-ray diffraction analysis of a cytochrome P450 (CYP119) from Sulfolobus solfataricus journal September 2000
Using X-ray absorption spectra to monitor specific radiation damage to anomalously scattering atoms in macromolecular crystallography journal June 2007
XDS journal January 2010
PHENIX: a comprehensive Python-based system for macromolecular structure solution journal January 2010
Temperature-dependent macromolecular X-ray crystallography journal March 2010
Features and development of Coot journal March 2010
Overview of the CCP 4 suite and current developments journal March 2011
NMR structure of the protein NP_247299.1: comparison with the crystal structure journal July 2010
Comparison of NMR and crystal structures for the proteins TM1112 and TM1367 journal August 2010
Comparison of NMR and crystal structures highlights conformational isomerism in protein active sites journal September 2010
Madurella mycetomatis mycetoma treated successfully with oral voriconazole journal May 2005
Directed Evolution of New Enzymes and Pathways for Environmental Biocatalysisa journal December 1998
A Structural Snapshot of CYP2B4 in Complex with Paroxetine Provides Insights into Ligand Binding and Clusters of Conformational States journal April 2013
Ketoconazole blocks adrenal steroidogenesis by inhibiting cytochrome P450-dependent enzymes. journal May 1983
Effects of the Antifungal Agents on Oxidative Drug Metabolism: Clinical Relevance journal January 2000
Posaconazole journal January 2005
Cytochrome P450 Bioreactors in the Pharmaceutical Industry: Challenges and Opportunities journal June 2013

Cited By (2)

Substrate-induced conformational change in cytochrome P450 OleP journal February 2019
Substrate-induced conformational change in cytochrome P450 OleP text January 2019

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