Sterols

Cholesterol topology with virtual sites and optimized off-plane bead protrusion.
(used in H.I. Ingólfsson et al. Lipid organization of the plasma membrane. JACS, 2014. DOI:10.1021/ja507832e)
martini_v2.0_cholesterol.itp
 
Old cholesterol topology together with cholesteryl oleate and cholate.
martini_v2.0_cholesterol_old.itp