5 - ns performed molecular dynamics simulation of the hydrated membrane in the liquid crystal phase formed by dimyrystynowej phosphatidylcholine ( DMPC ) and cholesterol ( Chol ) . The aim of the analysis was to clarify the trajectory obtained the mechanism of the ordering and condensing Chol at the atomic level . Ordering of the hydrocarbon chains in the membrane DMPC - Chol is greater than in pure DMPC membrane . Most are arranged adjacent molecular chains of DMPC and Chol smooth surface .