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98 results for “lipid bilayer”
Molecular dynamics simulation trajectory of a fully hydrated DMPC lipid bilayer
<p><strong>System: </strong>DMPC (dimyristoylphosphatidylcholine) bilayer in water.</p> <p><strong>Number of lipids: </strong>128.<br> <strong>Number of waters:</strong> 5097.</p> <p><strong>Lipid model:</strong> 'Berger' united-atom [<em>Biophys. J.</em> <strong>72</strong> 2002 (1997)].<br> <strong>Water model:</strong> SPC [In <em>Intermolecular Forces,</em> ed. Pullman. 331 (1981)].</p> <p><strong>Simulation engine:</strong> Gromacs 3.x [www.gromacs.org]</p> <p><strong>Trajectory length:</strong> 110 ns.<br> <strong>Previously equilibrated for:</strong> 20 ns.<br> <strong>Sampling rate:</strong> every 10 ps.</p> <p><strong>Time integration step:</strong> 2 fs.</p> <p><strong>Thermodynamic ensemble:</strong> NpT. <br> <strong>Temperature coupling:</strong> 'Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with lipids and water coupled separately at T = 323 K.<br> <strong>Pressure coupling: '</strong>Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with xy and z coupled separately at p = 1.0 bar.</p> <p><strong>Electrostatics: </strong>PME [<em>J. Chem. Phys.</em> <strong>98</strong> 10089 (1993); <em>J. Chem. Phys.</em> <strong>103</strong> 8577 (1995)], real-space cutoff at 1.0 nm.<br> <strong>Van der Waals:</strong> Truncated at 1.0 nm.</p> <p><strong>Constraints: </strong>Covalent bond lengths in lipids using LINCS [<em>J. Comput. Chem.</em> <strong>18</strong> 1463 (1997)], in water using SETTLE [J. Comput. Chem. <strong>13</strong> 952 (1992)].</p> <p><strong>Used in publications: </strong>[1] Markus S. Miettinen, Andrey A. Gurtovenko, Ilpo Vattulainen, and Mikko Karttunen: "Ion Dynamics in Cationic Lipid Bilayer Systems in Saline Solutions". <em>J. Phys. Chem. B</em> <strong>113</strong> 9226 (2009). DOI: 10.1021/jp810233q. [2] Markus S. Miettinen: "Computational Modeling of Cationic Lipid Bilayers in Saline Solutions". PhD Thesis. Aalto University School of Science and Technology, Helsinki, Finland. (2010). ISBN 978-952-60-3194-1.</p>
Molecular dynamics simulation trajectory of a cationic lipid bilayer: 50/50 mol% DMTAP/DMPC in 0.5 M NaCl
<p><strong>System: </strong>Symmetric bilayer of cationic DMTAP (dimyristoyltrimethylammoniumpropane, 50 mol-%) and zwitterionic DMPC (dimyristoylphosphatidylcholine, 50 mol-%) lipids in 0.5 M NaCl solution.</p> <p><strong>Number of DMPC:</strong> 64.<br> <strong>Number of DMTAP:</strong> 64.<br> <strong>Number of Na<sup>+</sup>-ions:</strong> 48.<br> <strong>Number of Cl<sup>-</sup>-ions:</strong> 112.<br> <strong>Number of waters:</strong> 5240.</p> <p><strong>Lipid model:</strong> 'Berger' united-atom [<em>Biophys. J.</em> <strong>72</strong> 2002 (1997)] with DMTAP modification by Gurtovenko et al. [<em>Biophys. J. </em><strong>86</strong> 3461 (2004)].<br> <strong>Water model:</strong> SPC [In <em>Intermolecular Forces,</em> ed. Pullman. 331 (1981)].</p> <p><strong>Simulation engine:</strong> Gromacs 3.x [www.gromacs.org]</p> <p><strong>Trajectory length:</strong> 179 ns.<br> <strong>Previously equilibrated for:</strong> 21 ns.<br> <strong>Sampling rate:</strong> every 10 ps.</p> <p><strong>Time integration step:</strong> 2 fs.</p> <p><strong>Thermodynamic ensemble:</strong> NpT. <br> <strong>Temperature coupling:</strong> 'Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with lipids and water coupled separately at T = 323 K.<br> <strong>Pressure coupling: '</strong>Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with xy and z coupled separately at p = 1.0 bar.</p> <p><strong>Electrostatics: </strong>PME [<em>J. Chem. Phys.</em> <strong>98</strong> 10089 (1993); <em>J. Chem. Phys.</em> <strong>103</strong> 8577 (1995)], real-space cutoff at 1.0 nm.<br> <strong>Van der Waals:</strong> Truncated at 1.0 nm.</p> <p><strong>Constraints: </strong>Covalent bond lengths in lipids using LINCS [<em>J. Comput. Chem.</em> <strong>18</strong> 1463 (1997)], in water using SETTLE [J. Comput. Chem. <strong>13</strong> 952 (1992)].</p> <p><strong>Used in publications: </strong>[1] Markus S. Miettinen, Andrey A. Gurtovenko, Ilpo Vattulainen, and Mikko Karttunen: "Ion Dynamics in Cationic Lipid Bilayer Systems in Saline Solutions". <em>J. Phys. Chem. B</em> <strong>113</strong> 9226 (2009). DOI: 10.1021/jp810233q. [2] Markus S. Miettinen: "Computational Modeling of Cationic Lipid Bilayers in Saline Solutions". PhD Thesis. Aalto University School of Science and Technology, Helsinki, Finland. (2010). ISBN 978-952-60-3194-1.</p>
Molecular dynamics simulation trajectory of a cationic lipid bilayer: 50/50 mol% DMTAP/DMPC in 1.0 M NaCl
<p><strong>System: </strong>Symmetric bilayer of cationic DMTAP (dimyristoyltrimethylammoniumpropane, 50 mol-%) and zwitterionic DMPC (dimyristoylphosphatidylcholine, 50 mol-%) lipids in 1.0 M NaCl solution.</p> <p><strong>Number of DMPC:</strong> 64.<br> <strong>Number of DMTAP:</strong> 64.<br> <strong>Number of Na<sup>+</sup>-ions:</strong> 94.<br> <strong>Number of Cl<sup>-</sup>-ions:</strong> 158.<br> <strong>Number of waters:</strong> 5148.</p> <p><strong>Lipid model:</strong> 'Berger' united-atom [<em>Biophys. J.</em> <strong>72</strong> 2002 (1997)] with DMTAP modification by Gurtovenko et al. [<em>Biophys. J. </em><strong>86</strong> 3461 (2004)].<br> <strong>Water model:</strong> SPC [In <em>Intermolecular Forces,</em> ed. Pullman. 331 (1981)].</p> <p><strong>Simulation engine:</strong> Gromacs 3.x [www.gromacs.org]</p> <p><strong>Trajectory length:</strong> 170 ns.<br> <strong>Previously equilibrated for:</strong> 21 ns.<br> <strong>Sampling rate:</strong> every 10 ps.</p> <p><strong>Time integration step:</strong> 2 fs.</p> <p><strong>Thermodynamic ensemble:</strong> NpT. <br> <strong>Temperature coupling:</strong> 'Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with lipids and water coupled separately at T = 323 K.<br> <strong>Pressure coupling: '</strong>Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with xy and z coupled separately at p = 1.0 bar.</p> <p><strong>Electrostatics: </strong>PME [<em>J. Chem. Phys.</em> <strong>98</strong> 10089 (1993); <em>J. Chem. Phys.</em> <strong>103</strong> 8577 (1995)], real-space cutoff at 1.0 nm.<br> <strong>Van der Waals:</strong> Truncated at 1.0 nm.</p> <p><strong>Constraints: </strong>Covalent bond lengths in lipids using LINCS [<em>J. Comput. Chem.</em> <strong>18</strong> 1463 (1997)], in water using SETTLE [J. Comput. Chem. <strong>13</strong> 952 (1992)].</p> <p><strong>Used in publications: </strong>[1] Markus S. Miettinen, Andrey A. Gurtovenko, Ilpo Vattulainen, and Mikko Karttunen: "Ion Dynamics in Cationic Lipid Bilayer Systems in Saline Solutions". <em>J. Phys. Chem. B</em> <strong>113</strong> 9226 (2009). DOI: 10.1021/jp810233q. [2] Markus S. Miettinen: "Computational Modeling of Cationic Lipid Bilayers in Saline Solutions". PhD Thesis. Aalto University School of Science and Technology, Helsinki, Finland. (2010). ISBN 978-952-60-3194-1.</p>
Molecular dynamics simulation trajectory of a cationic lipid bilayer: 6/94 mol% DMTAP/DMPC in 1.0 M NaCl
<p><strong>System: </strong>Symmetric bilayer of cationic DMTAP (dimyristoyltrimethylammoniumpropane, 6 mol-%) and zwitterionic DMPC (dimyristoylphosphatidylcholine, 94 mol-%) lipids in 1.0 M NaCl solution.</p> <p><strong>Number of DMPC:</strong> 120.<br> <strong>Number of DMTAP:</strong> 8.<br> <strong>Number of Na<sup>+</sup>-ions:</strong> 89.<br> <strong>Number of Cl<sup>-</sup>-ions:</strong> 97.<br> <strong>Number of waters:</strong> 4921.</p> <p><strong>Lipid model:</strong> 'Berger' united-atom [<em>Biophys. J.</em> <strong>72</strong> 2002 (1997)] with DMTAP modification by Gurtovenko et al. [<em>Biophys. J. </em><strong>86</strong> 3461 (2004)].<br> <strong>Water model:</strong> SPC [In <em>Intermolecular Forces,</em> ed. Pullman. 331 (1981)].</p> <p><strong>Simulation engine:</strong> Gromacs 3.x [www.gromacs.org]</p> <p><strong>Trajectory length:</strong> 230 ns.<br> <strong>Previously equilibrated for:</strong> 12 ns.<br> <strong>Sampling rate:</strong> every 10 ps.</p> <p><strong>Time integration step:</strong> 2 fs.</p> <p><strong>Thermodynamic ensemble:</strong> NpT. <br> <strong>Temperature coupling:</strong> 'Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with lipids and water coupled separately at T = 323 K.<br> <strong>Pressure coupling: '</strong>Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with xy and z coupled separately at p = 1.0 bar.</p> <p><strong>Electrostatics: </strong>PME [<em>J. Chem. Phys.</em> <strong>98</strong> 10089 (1993); <em>J. Chem. Phys.</em> <strong>103</strong> 8577 (1995)], real-space cutoff at 1.0 nm.<br> <strong>Van der Waals:</strong> Truncated at 1.0 nm.</p> <p><strong>Constraints: </strong>Covalent bond lengths in lipids using LINCS [<em>J. Comput. Chem.</em> <strong>18</strong> 1463 (1997)], in water using SETTLE [J. Comput. Chem. <strong>13</strong> 952 (1992)].</p> <p><strong>Used in publications: </strong>[1] Markus S. Miettinen, Andrey A. Gurtovenko, Ilpo Vattulainen, and Mikko Karttunen: "Ion Dynamics in Cationic Lipid Bilayer Systems in Saline Solutions". <em>J. Phys. Chem. B</em> <strong>113</strong> 9226 (2009). DOI: 10.1021/jp810233q. [2] Markus S. Miettinen: "Computational Modeling of Cationic Lipid Bilayers in Saline Solutions". PhD Thesis. Aalto University School of Science and Technology, Helsinki, Finland. (2010). ISBN 978-952-60-3194-1.</p>
Molecular dynamics simulation trajectory of a cationic lipid bilayer: 75/25 mol% DMTAP/DMPC in 1.0 M NaCl
<p><strong>System: </strong>Symmetric bilayer of cationic DMTAP (dimyristoyltrimethylammoniumpropane, 75 mol-%) and zwitterionic DMPC (dimyristoylphosphatidylcholine, 25 mol-%) lipids in 1.0 M NaCl solution.</p> <p><strong>Number of DMPC:</strong> 32.<br> <strong>Number of DMTAP:</strong> 96.<br> <strong>Number of Na<sup>+</sup>-ions:</strong> 96.<br> <strong>Number of Cl<sup>-</sup>-ions:</strong> 192.<br> <strong>Number of waters:</strong> 5304.</p> <p><strong>Lipid model:</strong> 'Berger' united-atom [<em>Biophys. J.</em> <strong>72</strong> 2002 (1997)] with DMTAP modification by Gurtovenko et al. [<em>Biophys. J. </em><strong>86</strong> 3461 (2004)].<br> <strong>Water model:</strong> SPC [In <em>Intermolecular Forces,</em> ed. Pullman. 331 (1981)].</p> <p><strong>Simulation engine:</strong> Gromacs 3.x [www.gromacs.org]</p> <p><strong>Trajectory length:</strong> 110 ns.<br> <strong>Previously equilibrated for:</strong> 11 ns.<br> <strong>Sampling rate:</strong> every 10 ps.</p> <p><strong>Time integration step:</strong> 2 fs.</p> <p><strong>Thermodynamic ensemble:</strong> NpT. <br> <strong>Temperature coupling:</strong> 'Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with lipids and water coupled separately at T = 323 K.<br> <strong>Pressure coupling: '</strong>Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with xy and z coupled separately at p = 1.0 bar.</p> <p><strong>Electrostatics: </strong>PME [<em>J. Chem. Phys.</em> <strong>98</strong> 10089 (1993); <em>J. Chem. Phys.</em> <strong>103</strong> 8577 (1995)], real-space cutoff at 1.0 nm.<br> <strong>Van der Waals:</strong> Truncated at 1.0 nm.</p> <p><strong>Constraints: </strong>Covalent bond lengths in lipids using LINCS [<em>J. Comput. Chem.</em> <strong>18</strong> 1463 (1997)], in water using SETTLE [J. Comput. Chem. <strong>13</strong> 952 (1992)].</p> <p><strong>Used in publications: </strong>[1] Markus S. Miettinen, Andrey A. Gurtovenko, Ilpo Vattulainen, and Mikko Karttunen: "Ion Dynamics in Cationic Lipid Bilayer Systems in Saline Solutions". <em>J. Phys. Chem. B</em> <strong>113</strong> 9226 (2009). DOI: 10.1021/jp810233q. [2] Markus S. Miettinen: "Computational Modeling of Cationic Lipid Bilayers in Saline Solutions". PhD Thesis. Aalto University School of Science and Technology, Helsinki, Finland. (2010). ISBN 978-952-60-3194-1.</p>
Molecular dynamics simulation trajectory of a cationic lipid bilayer: 50/50 mol% DMTAP/DMPC
<p><strong>System: </strong>Symmetric bilayer of cationic DMTAP (dimyristoyltrimethylammoniumpropane, 50 mol-%) and zwitterionic DMPC (dimyristoylphosphatidylcholine, 50 mol-%) lipids in water.</p> <p><strong>Number of DMPC: </strong>64.<br> <strong>Number of DMTAP:</strong> 64.<br> <strong>Number of Cl--ions:</strong> 64.<br> <strong>Number of waters:</strong> 5336.</p> <p><strong>Lipid model:</strong> 'Berger' united-atom [<em>Biophys. J.</em> <strong>72</strong> 2002 (1997)] with DMTAP modification by Gurtovenko et al. [<em>Biophys. J. </em><strong>86</strong> 3461 (2004)].<br> <strong>Water model:</strong> SPC [In <em>Intermolecular Forces,</em> ed. Pullman. 331 (1981)].</p> <p><strong>Simulation engine:</strong> Gromacs 3.x [www.gromacs.org]</p> <p><strong>Trajectory length:</strong> 149 ns.<br> <strong>Previously equilibrated for:</strong> 41 ns.<br> <strong>Sampling rate:</strong> every 10 ps.</p> <p><strong>Time integration step:</strong> 2 fs.</p> <p><strong>Thermodynamic ensemble:</strong> NpT. <br> <strong>Temperature coupling:</strong> 'Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with lipids and water coupled separately at T = 323 K.<br> <strong>Pressure coupling: '</strong>Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with xy and z coupled separately at p = 1.0 bar.</p> <p><strong>Electrostatics: </strong>PME [<em>J. Chem. Phys.</em> <strong>98</strong> 10089 (1993); <em>J. Chem. Phys.</em> <strong>103</strong> 8577 (1995)], real-space cutoff at 1.0 nm.<br> <strong>Van der Waals:</strong> Truncated at 1.0 nm.</p> <p><strong>Constraints: </strong>Covalent bond lengths in lipids using LINCS [<em>J. Comput. Chem.</em> <strong>18</strong> 1463 (1997)], in water using SETTLE [J. Comput. Chem. <strong>13</strong> 952 (1992)].</p> <p><strong>Used in publications: </strong>[1] Markus S. Miettinen, Andrey A. Gurtovenko, Ilpo Vattulainen, and Mikko Karttunen: "Ion Dynamics in Cationic Lipid Bilayer Systems in Saline Solutions". <em>J. Phys. Chem. B</em> <strong>113</strong> 9226 (2009). DOI: 10.1021/jp810233q. [2] Markus S. Miettinen: "Computational Modeling of Cationic Lipid Bilayers in Saline Solutions". PhD Thesis. Aalto University School of Science and Technology, Helsinki, Finland. (2010). ISBN 978-952-60-3194-1.</p>
Molecular dynamics simulation trajectory of a cationic lipid bilayer: 50/50 mol% DMTAP/DMPC in 0.1 M NaCl
<p><strong>System: </strong>Symmetric bilayer of cationic DMTAP (dimyristoyltrimethylammoniumpropane, 50 mol-%) and zwitterionic DMPC (dimyristoylphosphatidylcholine, 50 mol-%) lipids in 0.1 M NaCl solution.</p> <p><strong>Number of DMPC:</strong> 64.<br> <strong>Number of DMTAP:</strong> 64.<br> <strong>Number of Na<sup>+</sup>-ions:</strong> 10.<br> <strong>Number of Cl<sup>-</sup>-ions:</strong> 74.<br> <strong>Number of waters:</strong> 5316.</p> <p><strong>Lipid model:</strong> 'Berger' united-atom [<em>Biophys. J.</em> <strong>72</strong> 2002 (1997)] with DMTAP modification by Gurtovenko et al. [<em>Biophys. J. </em><strong>86</strong> 3461 (2004)].<br> <strong>Water model:</strong> SPC [In <em>Intermolecular Forces,</em> ed. Pullman. 331 (1981)].</p> <p><strong>Simulation engine:</strong> Gromacs 3.x [www.gromacs.org]</p> <p><strong>Trajectory length:</strong> 190 ns.<br> <strong>Previously equilibrated for:</strong> 21 ns.<br> <strong>Sampling rate:</strong> every 10 ps.</p> <p><strong>Time integration step:</strong> 2 fs.</p> <p><strong>Thermodynamic ensemble:</strong> NpT. <br> <strong>Temperature coupling:</strong> 'Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with lipids and water coupled separately at T = 323 K.<br> <strong>Pressure coupling: '</strong>Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with xy and z coupled separately at p = 1.0 bar.</p> <p><strong>Electrostatics: </strong>PME [<em>J. Chem. Phys.</em> <strong>98</strong> 10089 (1993); <em>J. Chem. Phys.</em> <strong>103</strong> 8577 (1995)], real-space cutoff at 1.0 nm.<br> <strong>Van der Waals:</strong> Truncated at 1.0 nm.</p> <p><strong>Constraints: </strong>Covalent bond lengths in lipids using LINCS [<em>J. Comput. Chem.</em> <strong>18</strong> 1463 (1997)], in water using SETTLE [J. Comput. Chem. <strong>13</strong> 952 (1992)].</p> <p><strong>Used in publications: </strong>[1] Markus S. Miettinen, Andrey A. Gurtovenko, Ilpo Vattulainen, and Mikko Karttunen: "Ion Dynamics in Cationic Lipid Bilayer Systems in Saline Solutions". <em>J. Phys. Chem. B</em> <strong>113</strong> 9226 (2009). DOI: 10.1021/jp810233q. [2] Markus S. Miettinen: "Computational Modeling of Cationic Lipid Bilayers in Saline Solutions". PhD Thesis. Aalto University School of Science and Technology, Helsinki, Finland. (2010). ISBN 978-952-60-3194-1.</p>
Molecular dynamics simulation trajectory of a cationic lipid bilayer: 75/25 mol% DMTAP/DMPC in 0.1 M NaCl
<p><strong>System: </strong>Symmetric bilayer of cationic DMTAP (dimyristoyltrimethylammoniumpropane, 75 mol-%) and zwitterionic DMPC (dimyristoylphosphatidylcholine, 25 mol-%) lipids in 0.1 M NaCl solution.</p> <p><strong>Number of DMPC:</strong> 32.<br> <strong>Number of DMTAP:</strong> 96.<br> <strong>Number of Na<sup>+</sup>-ions:</strong> 10.<br> <strong>Number of Cl<sup>-</sup>-ions:</strong> 106.<br> <strong>Number of waters:</strong> 5476.</p> <p><strong>Lipid model:</strong> 'Berger' united-atom [<em>Biophys. J.</em> <strong>72</strong> 2002 (1997)] with DMTAP modification by Gurtovenko et al. [<em>Biophys. J. </em><strong>86</strong> 3461 (2004)].<br> <strong>Water model:</strong> SPC [In <em>Intermolecular Forces,</em> ed. Pullman. 331 (1981)].</p> <p><strong>Simulation engine:</strong> Gromacs 3.x [www.gromacs.org]</p> <p><strong>Trajectory length:</strong> 110 ns.<br> <strong>Previously equilibrated for:</strong> 11 ns.<br> <strong>Sampling rate:</strong> every 10 ps.</p> <p><strong>Time integration step:</strong> 2 fs.</p> <p><strong>Thermodynamic ensemble:</strong> NpT. <br> <strong>Temperature coupling:</strong> 'Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with lipids and water coupled separately at T = 323 K.<br> <strong>Pressure coupling: '</strong>Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with xy and z coupled separately at p = 1.0 bar.</p> <p><strong>Electrostatics: </strong>PME [<em>J. Chem. Phys.</em> <strong>98</strong> 10089 (1993); <em>J. Chem. Phys.</em> <strong>103</strong> 8577 (1995)], real-space cutoff at 1.0 nm.<br> <strong>Van der Waals:</strong> Truncated at 1.0 nm.</p> <p><strong>Constraints: </strong>Covalent bond lengths in lipids using LINCS [<em>J. Comput. Chem.</em> <strong>18</strong> 1463 (1997)], in water using SETTLE [J. Comput. Chem. <strong>13</strong> 952 (1992)].</p> <p><strong>Used in publications: </strong>[1] Markus S. Miettinen, Andrey A. Gurtovenko, Ilpo Vattulainen, and Mikko Karttunen: "Ion Dynamics in Cationic Lipid Bilayer Systems in Saline Solutions". <em>J. Phys. Chem. B</em> <strong>113</strong> 9226 (2009). DOI: 10.1021/jp810233q. [2] Markus S. Miettinen: "Computational Modeling of Cationic Lipid Bilayers in Saline Solutions". PhD Thesis. Aalto University School of Science and Technology, Helsinki, Finland. (2010). ISBN 978-952-60-3194-1.</p>
Molecular dynamics simulation trajectory of a cationic lipid bilayer: 75/25 mol% DMTAP/DMPC in 0.5 M NaCl
<p><strong>System: </strong>Symmetric bilayer of cationic DMTAP (dimyristoyltrimethylammoniumpropane, 75 mol-%) and zwitterionic DMPC (dimyristoylphosphatidylcholine, 25 mol-%) lipids in 0.5 M NaCl solution.</p> <p><strong>Number of DMPC:</strong> 32.<br> <strong>Number of DMTAP:</strong> 96.<br> <strong>Number of Na<sup>+</sup>-ions:</strong> 49.<br> <strong>Number of Cl<sup>-</sup>-ions:</strong> 145.<br> <strong>Number of waters:</strong> 5398.</p> <p><strong>Lipid model:</strong> 'Berger' united-atom [<em>Biophys. J.</em> <strong>72</strong> 2002 (1997)] with DMTAP modification by Gurtovenko et al. [<em>Biophys. J. </em><strong>86</strong> 3461 (2004)].<br> <strong>Water model:</strong> SPC [In <em>Intermolecular Forces,</em> ed. Pullman. 331 (1981)].</p> <p><strong>Simulation engine:</strong> Gromacs 3.x [www.gromacs.org]</p> <p><strong>Trajectory length:</strong> 110 ns.<br> <strong>Previously equilibrated for:</strong> 11 ns.<br> <strong>Sampling rate:</strong> every 10 ps.</p> <p><strong>Time integration step:</strong> 2 fs.</p> <p><strong>Thermodynamic ensemble:</strong> NpT. <br> <strong>Temperature coupling:</strong> 'Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with lipids and water coupled separately at T = 323 K.<br> <strong>Pressure coupling: '</strong>Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with xy and z coupled separately at p = 1.0 bar.</p> <p><strong>Electrostatics: </strong>PME [<em>J. Chem. Phys.</em> <strong>98</strong> 10089 (1993); <em>J. Chem. Phys.</em> <strong>103</strong> 8577 (1995)], real-space cutoff at 1.0 nm.<br> <strong>Van der Waals:</strong> Truncated at 1.0 nm.</p> <p><strong>Constraints: </strong>Covalent bond lengths in lipids using LINCS [<em>J. Comput. Chem.</em> <strong>18</strong> 1463 (1997)], in water using SETTLE [J. Comput. Chem. <strong>13</strong> 952 (1992)].</p> <p><strong>Used in publications: </strong>[1] Markus S. Miettinen, Andrey A. Gurtovenko, Ilpo Vattulainen, and Mikko Karttunen: "Ion Dynamics in Cationic Lipid Bilayer Systems in Saline Solutions". <em>J. Phys. Chem. B</em> <strong>113</strong> 9226 (2009). DOI: 10.1021/jp810233q. [2] Markus S. Miettinen: "Computational Modeling of Cationic Lipid Bilayers in Saline Solutions". PhD Thesis. Aalto University School of Science and Technology, Helsinki, Finland. (2010). ISBN 978-952-60-3194-1.</p>
Molecular dynamics simulation trajectory of a cationic lipid bilayer: 75/25 mol% DMTAP/DMPC
<p><strong>System: </strong>Symmetric bilayer of cationic DMTAP (dimyristoyltrimethylammoniumpropane, 75 mol-%) and zwitterionic DMPC (dimyristoylphosphatidylcholine, 25 mol-%) lipids in water.</p> <p><strong>Number of DMPC:</strong> 32.<br> <strong>Number of DMTAP:</strong> 96.<br> <strong>Number of Cl--ions:</strong> 96.<br> <strong>Number of waters:</strong> 5496.</p> <p><strong>Lipid model:</strong> 'Berger' united-atom [<em>Biophys. J.</em> <strong>72</strong> 2002 (1997)] with DMTAP modification by Gurtovenko et al. [<em>Biophys. J. </em><strong>86</strong> 3461 (2004)].<br> <strong>Water model:</strong> SPC [In <em>Intermolecular Forces,</em> ed. Pullman. 331 (1981)].</p> <p><strong>Simulation engine:</strong> Gromacs 3.x [www.gromacs.org]</p> <p><strong>Trajectory length:</strong> 109 ns.<br> <strong>Previously equilibrated for:</strong> 31 ns.<br> <strong>Sampling rate:</strong> every 10 ps.</p> <p><strong>Time integration step:</strong> 2 fs.</p> <p><strong>Thermodynamic ensemble:</strong> NpT. <br> <strong>Temperature coupling:</strong> 'Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with lipids and water coupled separately at T = 323 K.<br> <strong>Pressure coupling: '</strong>Berendsen' [<em>J. Chem. Phys.</em> <strong>81</strong> 3684 (1984)] with xy and z coupled separately at p = 1.0 bar.</p> <p><strong>Electrostatics: </strong>PME [<em>J. Chem. Phys.</em> <strong>98</strong> 10089 (1993); <em>J. Chem. Phys.</em> <strong>103</strong> 8577 (1995)], real-space cutoff at 1.0 nm.<br> <strong>Van der Waals:</strong> Truncated at 1.0 nm.</p> <p><strong>Constraints: </strong>Covalent bond lengths in lipids using LINCS [<em>J. Comput. Chem.</em> <strong>18</strong> 1463 (1997)], in water using SETTLE [J. Comput. Chem. <strong>13</strong> 952 (1992)].</p> <p><strong>Used in publications: </strong>[1] Markus S. Miettinen, Andrey A. Gurtovenko, Ilpo Vattulainen, and Mikko Karttunen: "Ion Dynamics in Cationic Lipid Bilayer Systems in Saline Solutions". <em>J. Phys. Chem. B</em> <strong>113</strong> 9226 (2009). DOI: 10.1021/jp810233q. [2] Markus S. Miettinen: "Computational Modeling of Cationic Lipid Bilayers in Saline Solutions". PhD Thesis. Aalto University School of Science and Technology, Helsinki, Finland. (2010). ISBN 978-952-60-3194-1.</p>
MD simulation trajectory of a lipid bilayer: 70/30 mol% POPC/Cholesterol . SLIPIDS, Gromacs 4.6.3. 2016.
<p>MD simulation trajectory files, for fully hydrated POPC + CHOLESTEROL bilayer (70/30 mol%) [358 POPC, 154 CHOL, 21183 WAT]. The SLIPIDS force field was used with Gromacs 4.6.3. Conditions: T=298K. 170 ns each trajectory, last 100 ns analyzed.</p>
MD simulation trajectory of a lipid bilayer: 50/50 mol% POPC/Cholesterol . SLIPIDS, Gromacs 4.6.3. 2016.
<p>MD simulation trajectory files, for fully hydrated POPC + CHOLESTEROL bilayer (50/50 mol%) [256 POPC, 256 CHOL, 20334 WAT]. The SLIPIDS force field was used with Gromacs 4.6.3. Conditions: T=298K. 170 ns each trajectory, last 100 ns analyzed.</p>
MD simulation trajectory of a lipid bilayer: Pure POPC in water. SLIPIDS, Gromacs 4.6.3. 2016.
<p>MD simulation trajectory files, for fully hydrated POPC bilayer [512 POPC, 23943 WAT]. The SLIPIDS force field was used with Gromacs 4.6.3. Conditions: T=298K. 170 ns each trajectory, last 100 ns analyzed.</p>
MD simulation trajectory of a POPC/POPS (4:1) bilayer with 1M CsCl, Berger force field for lipids, Dang's for Cs+ and ffgmx for Cl-
<p>MD simulation trajectory of a POPC/POPS (4:1) bilayer with 1M CsCl (102 POPC, 26 POPS, 4290 WAT, 106 Cs+, 80 Cl-). Additional Cs+ cations added to neutralize the negative charge of POPS. Berger force field for lipids, Dang's for Cs+ (), ffgmx for Cl- are employed. Gromacs 4.0.7, T=310K, 200 ns trajectories were calculated with the last 50 ns stored here).<br> K+ nonbonding parameters (from Dang's Cs+ from JPC B 1999, 103, 8195):<br> sig=0.383086, eps=0.41840</p> <p>Used in:</p> <p>P. Jurkiewicz, L. Cwiklik, A. Vojtiskova, P. Jungwirth, M. Hof, Structure, Dynamics, and Hydration of POPC/POPS Bilayers Suspended in NaCl, KCl, and CsCl <br> <em>BBA Biomembranes </em>2012<em>, 1818, 609-616.</em><br> DOI: 10.1016/j.bbamem.2011.11.033</p>
MD simulation trajectory of a POPC/POPS (4:1) bilayer with 1M KCl, Berger force field for lipids, Dang's for K+ and ffgmx for Cl-
<p>MD simulation trajectory of a POPC/POPS (4:1) bilayer with 1M KCl (102 POPC, 26 POPS, 4290 WAT, 106 K+, 80 Cl-). Additional K+ cations added to neutralize the negative charge of POPS. Berger force field for lipids, Dang's for K+ (), ffgmx for Cl- are employed. Gromacs 4.0.7, T=310K, 200 ns trajectories were calculated with the last 50 ns stored here).K+ nonbonding parameters (from Dang's JPC B 1999, 103, 8195 based on Vacha et al. Biophys. J 2009, 96, 4493.):<br> sig=0.3048655 eps=0.418400</p> <p>Used in:</p> <p>P. Jurkiewicz, L. Cwiklik, A. Vojtiskova, P. Jungwirth, M. Hof, Structure, Dynamics, and Hydration of POPC/POPS Bilayers Suspended in NaCl, KCl, and CsCl <br> <em>BBA Biomembranes </em>2012<em>, 1818, 609-616.</em><br> DOI: 10.1016/j.bbamem.2011.11.033</p>
MD simulation trajectory of a POPC/POPS (4:1) bilayer with 1M NaCl, Berger force field for lipids and ffgmx for ions
<p>MD simulation trajectory of a POPC/POPS (4:1) bilayer with 1M NaCl (102 POPC, 26 POPS, 4290 WAT, 106 Na+, 80 Cl-). Additional Na+ cations added to neutralize the negative charge of POPS. Berger force field for lipids and ffgmx for ions are employed. Gromacs 4.0.7, T=310K, 200 ns trajectories were calculated with the last 50 ns stored here.</p> <p>Used in:</p> <p>P. Jurkiewicz, L. Cwiklik, A. Vojtiskova, P. Jungwirth, M. Hof, Structure, Dynamics, and Hydration of POPC/POPS Bilayers Suspended in NaCl, KCl, and CsCl <br> <em>BBA Biomembranes </em>2012<em>, 1818, 609-616.</em><br> DOI: 10.1016/j.bbamem.2011.11.033</p> <p> </p>
MD simulation trajectory of a POPC/POPS (4:1) bilayer with 715mM CaCl2, Berger force field for lipids, scaled charges for Ca2+ and Cl-
<p>MD simulation trajectory of a POPC/POPS (4:1) bilayer with 715 mM CaCl2 (104 POPC, 24 POPS, 26 POPS, 4306 WAT, 72 Ca2+, 112 Cl-). Additional Ca2+ cations added to neutralize the negative charge of POPS (leading to total Ca2+ concentration of 919 mM). Berger force field for lipids, scaled charges employed for calcium and chloride ions. Gromacs 4.5.5, T=310K, 300 ns trajectories were calculated with the last 100 ns stored here.</p> <p>Used in (see therein also a detailed description of ion scaling):</p> <p>A. Melcrova, S. Pokorna, S. Pullanchery, M. Kohagen, P. Jurkiewicz, M. Hof, P. Jungwirth, P. S. Cremer, L. Cwiklik, The complex nature of calcium cation interactions with phospholipid bilayers<br> Scientific Reports 2016, 6, 38035.<br> DOI: 10.1038/srep38035</p>
MD simulation trajectory of a POPC bilayer with 716mM CaCl2, Berger force field for lipids, scaled charges for Ca2+ and Cl-
<p>MD simulation trajectory of a POPC bilayer with 716 mM CaCl2 (128 POPC, 26 POPS, 4308 WAT, 56 Ca2+, 112 Cl-). Berger force field for lipids, scaled charges employed for calcium and chloride ions. Gromacs 4.5.5, T=310K, 200 ns trajectories were calculated with the last 100 ns stored here.</p> <p>Used in (see therein also a detailed description of ion scaling):</p> <p>A. Melcrova, S. Pokorna, S. Pullanchery, M. Kohagen, P. Jurkiewicz, M. Hof, P. Jungwirth, P. S. Cremer, L. Cwiklik, The complex nature of calcium cation interactions with phospholipid bilayers<br> Scientific Reports 2016, 6, 38035.<br> DOI: 10.1038/srep38035</p>
MD simulation trajectory of a POPC/POPS (4:1) bilayer with 102mM CaCl2, Berger force field for lipids, scaled charges for Ca2+ and Cl-
<p>MD simulation trajectory of a POPC/POPS (4:1) bilayer with 102 mM CaCl2 (104 POPC, 24 POPS, 26 POPS, 4306 WAT, 24 Ca2+, 16 Cl-). Additional Ca2+ cations added to neutralize the negative charge of POPS (leading to total Ca2+ concentration of 306 mM). Berger force field for lipids, scaled charges employed for calcium and chloride ions. Gromacs 4.5.5, T=310K, 300 ns trajectories were calculated with the last 100 ns stored here.</p> <p>Used in (see therein also a detailed description of ion scaling):</p> <p>A. Melcrova, S. Pokorna, S. Pullanchery, M. Kohagen, P. Jurkiewicz, M. Hof, P. Jungwirth, P. S. Cremer, L. Cwiklik, The complex nature of calcium cation interactions with phospholipid bilayers<br> Scientific Reports 2016, 6, 38035.<br> DOI: 10.1038/srep38035</p>
MD simulation trajectory of a POPC bilayer with 100mM CaCl2, Berger force field for lipids, scaled charges for Ca2+ and Cl-
<p>MD simulation trajectory of a POPC bilayer with 100 mM CaCl2 (128 POPC, 26 POPS, 4452 WAT, 8 Ca2+, 16 Cl-). Berger force field for lipids, scaled charges employed for calcium and chloride ions. Gromacs 4.5.5, T=310K, 200 ns trajectories were calculated with the last 100 ns stored here).</p> <p>Used in (see therein also a detailed description of ion scaling):</p> <p>A. Melcrova, S. Pokorna, S. Pullanchery, M. Kohagen, P. Jurkiewicz, M. Hof, P. Jungwirth, P. S. Cremer, L. Cwiklik, The complex nature of calcium cation interactions with phospholipid bilayers<br> Scientific Reports 2016, 6, 38035.<br> DOI: 10.1038/srep38035</p>
ScienceDex guides
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.