Isoflurane's Effect on Protein Conformation as a Proposed Mechanism for Preconditioning

Persistent alteration of protein conformation due to interaction with isoflurane may be a novel molecular aspect of preconditioning. We preincubated human serum albumin with isoflurane, dialyzed to release agent, and assessed protein conformation. Susceptibility to chemical modification by methylgly...

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Main Authors: Michelle R. Baker, Sean K. Benton, Christopher S. Theisen, Chad A. McClintick, Eugene E. Fibuch, Norbert W. Seidler
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Biochemistry Research International
Online Access:http://dx.doi.org/10.1155/2011/739712
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author Michelle R. Baker
Sean K. Benton
Christopher S. Theisen
Chad A. McClintick
Eugene E. Fibuch
Norbert W. Seidler
author_facet Michelle R. Baker
Sean K. Benton
Christopher S. Theisen
Chad A. McClintick
Eugene E. Fibuch
Norbert W. Seidler
author_sort Michelle R. Baker
collection DOAJ
description Persistent alteration of protein conformation due to interaction with isoflurane may be a novel molecular aspect of preconditioning. We preincubated human serum albumin with isoflurane, dialyzed to release agent, and assessed protein conformation. Susceptibility to chemical modification by methylglyoxal and nitrophenylacetate was also examined. Isoflurane had a persistent effect on protein conformation. An increase in the susceptibility of surface residues to chemical modification attended this change in conformation. Modification of isoflurane-treated HSA included intra- and intersubunit cross-linking that may be a consequence of anesthetic-induced changes in multimeric subpopulations. This irreversible effect of isoflurane may represent a mechanism for preconditioning.
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spelling doaj-art-d4b91e5d70894f95925704f08bf21d202025-02-03T05:51:18ZengWileyBiochemistry Research International2090-22472090-22552011-01-01201110.1155/2011/739712739712Isoflurane's Effect on Protein Conformation as a Proposed Mechanism for PreconditioningMichelle R. Baker0Sean K. Benton1Christopher S. Theisen2Chad A. McClintick3Eugene E. Fibuch4Norbert W. Seidler5Department of Anesthesiology, University of Missouri-Kansas City School of Medicine, 4401 Wornall Road, Kansas City, MO 64108, USADepartment of Anesthesiology, University of Missouri-Kansas City School of Medicine, 4401 Wornall Road, Kansas City, MO 64108, USADepartment of Biochemistry, Kansas City University of Medicine and Biosciences, 1750 Independence Avenue, Kansas City, MO 64106, USADepartment of Anesthesiology, University of Missouri-Kansas City School of Medicine, 4401 Wornall Road, Kansas City, MO 64108, USADepartment of Anesthesiology, University of Missouri-Kansas City School of Medicine, 4401 Wornall Road, Kansas City, MO 64108, USADepartment of Biochemistry, Kansas City University of Medicine and Biosciences, 1750 Independence Avenue, Kansas City, MO 64106, USAPersistent alteration of protein conformation due to interaction with isoflurane may be a novel molecular aspect of preconditioning. We preincubated human serum albumin with isoflurane, dialyzed to release agent, and assessed protein conformation. Susceptibility to chemical modification by methylglyoxal and nitrophenylacetate was also examined. Isoflurane had a persistent effect on protein conformation. An increase in the susceptibility of surface residues to chemical modification attended this change in conformation. Modification of isoflurane-treated HSA included intra- and intersubunit cross-linking that may be a consequence of anesthetic-induced changes in multimeric subpopulations. This irreversible effect of isoflurane may represent a mechanism for preconditioning.http://dx.doi.org/10.1155/2011/739712
spellingShingle Michelle R. Baker
Sean K. Benton
Christopher S. Theisen
Chad A. McClintick
Eugene E. Fibuch
Norbert W. Seidler
Isoflurane's Effect on Protein Conformation as a Proposed Mechanism for Preconditioning
Biochemistry Research International
title Isoflurane's Effect on Protein Conformation as a Proposed Mechanism for Preconditioning
title_full Isoflurane's Effect on Protein Conformation as a Proposed Mechanism for Preconditioning
title_fullStr Isoflurane's Effect on Protein Conformation as a Proposed Mechanism for Preconditioning
title_full_unstemmed Isoflurane's Effect on Protein Conformation as a Proposed Mechanism for Preconditioning
title_short Isoflurane's Effect on Protein Conformation as a Proposed Mechanism for Preconditioning
title_sort isoflurane s effect on protein conformation as a proposed mechanism for preconditioning
url http://dx.doi.org/10.1155/2011/739712
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