POPC with 40 and 50 mol-% of cholesterol at 310 K. Charmm36 force field.

A POPC bilayer consisting of 200 lipids (100 per leaflet) is simulated in the presence of 40% (134 molecules) and 50 % (200 molecules) of cholesterol. The Charmm36 model [1] is employed for lipids and the Charmm-compatible variant of the tip3p model for water.

The Charmm36 force field parameters were obtained from CHARMM-GUI [2] at http://www.charmm-gui.org

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The files are in GROMACS format. Trajectory (.xtc) is 100 ns long with data saved every 100 ps. Additionally, the initial structure (.gro), topology (.top), index file (.ndx), simulation paremeter file (.mdp), binary run input file for GROMACS v. 5.0–> (.tpr) and the energy output file (.edr) are provided. 

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[1] Update of the CHARMM All-Atom Additive Force Field for Lipids: Validation on Six Lipid Types

Jeffery B. Klauda, Richard M. Venable, J. Alfredo Freites,  Joseph W. O’Connor, Douglas J. Tobias, Carlos Mondragon-Ramirez, Igor Vorobyov, Alexander D. MacKerell, Jr., and Richard W. Pastor

The Journal of Physical Chemistry B 2010 114 (23), 7830-7843

DOI: 10.1021/jp101759q

[2] CHARMM-GUI Input Generator for NAMD, GROMACS, AMBER, OpenMM, and CHARMM/OpenMM Simulations Using the CHARMM36 Additive Force Field

Jumin Lee, Xi Cheng, Jason M. Swails, Min Sun Yeom, Peter K. Eastman, Justin A. Lemkul, Shuai Wei, Joshua Buckner, Jong Cheol Jeong, Yifei Qi, Sunhwan Jo, Vijay S. Pande, David A. Case, Charles L. Brooks, III, Alexander D. MacKerell, Jr., Jeffery B. Klauda, and Wonpil Im

Journal of Chemical Theory and Computation 2016 12 (1), 405-413

DOI: 10.1021/acs.jctc.5b00935