Free energy of binding of coiled-coil complexes with different electrostatic environments: the influence of force field polarisation and capping

Coiled-coils are well known protein–protein interaction motifs, with the leucine zipper region of activator protein-1 (AP-1) consisting of the c-Jun and c-Fos proteins being a typical example. Molecular dynamics (MD) simulations using the MM/GBSA method have been used to predict the free energy of i...

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Main Authors: Zhuo, Z., Guo, L., Mancera, Ricardo
Format: Journal Article
Published: Springer 2014
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/12472
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author Zhuo, Z.
Guo, L.
Mancera, Ricardo
author_facet Zhuo, Z.
Guo, L.
Mancera, Ricardo
author_sort Zhuo, Z.
building Curtin Institutional Repository
collection Online Access
description Coiled-coils are well known protein–protein interaction motifs, with the leucine zipper region of activator protein-1 (AP-1) consisting of the c-Jun and c-Fos proteins being a typical example. Molecular dynamics (MD) simulations using the MM/GBSA method have been used to predict the free energy of interaction of these proteins. The influence of force field polarisation and capping on the predicted free energy of binding of complexes with different electrostatic environments (net charge) were investigated. Although both force field polarisation and peptide capping are important for the prediction of the absolute free energy of binding, peptide capping has the largest influence on the predicted free energy of binding. Polarisable simulations appear better suited to determine structural properties of the complexes of these proteins while non-polarisable simulations seem to give better predictions of the associated free energies of binding
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institution Curtin University Malaysia
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publishDate 2014
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spelling curtin-20.500.11937-124722017-09-13T14:56:52Z Free energy of binding of coiled-coil complexes with different electrostatic environments: the influence of force field polarisation and capping Zhuo, Z. Guo, L. Mancera, Ricardo MM/GBSA Free energy of binding c-Jun c-Fos molecular dynamics Leucine zipper Coiled-coil Coiled-coils are well known protein–protein interaction motifs, with the leucine zipper region of activator protein-1 (AP-1) consisting of the c-Jun and c-Fos proteins being a typical example. Molecular dynamics (MD) simulations using the MM/GBSA method have been used to predict the free energy of interaction of these proteins. The influence of force field polarisation and capping on the predicted free energy of binding of complexes with different electrostatic environments (net charge) were investigated. Although both force field polarisation and peptide capping are important for the prediction of the absolute free energy of binding, peptide capping has the largest influence on the predicted free energy of binding. Polarisable simulations appear better suited to determine structural properties of the complexes of these proteins while non-polarisable simulations seem to give better predictions of the associated free energies of binding 2014 Journal Article http://hdl.handle.net/20.500.11937/12472 10.1007/s13659-014-0036-0 Springer fulltext
spellingShingle MM/GBSA
Free energy of binding
c-Jun
c-Fos
molecular dynamics
Leucine zipper
Coiled-coil
Zhuo, Z.
Guo, L.
Mancera, Ricardo
Free energy of binding of coiled-coil complexes with different electrostatic environments: the influence of force field polarisation and capping
title Free energy of binding of coiled-coil complexes with different electrostatic environments: the influence of force field polarisation and capping
title_full Free energy of binding of coiled-coil complexes with different electrostatic environments: the influence of force field polarisation and capping
title_fullStr Free energy of binding of coiled-coil complexes with different electrostatic environments: the influence of force field polarisation and capping
title_full_unstemmed Free energy of binding of coiled-coil complexes with different electrostatic environments: the influence of force field polarisation and capping
title_short Free energy of binding of coiled-coil complexes with different electrostatic environments: the influence of force field polarisation and capping
title_sort free energy of binding of coiled-coil complexes with different electrostatic environments: the influence of force field polarisation and capping
topic MM/GBSA
Free energy of binding
c-Jun
c-Fos
molecular dynamics
Leucine zipper
Coiled-coil
url http://hdl.handle.net/20.500.11937/12472