Figure 2
From: Retroviral matrix and lipids, the intimate interaction
Some lipid components of the internal leaflet of cellular membranes. Main lipid components of the internal leaflet of cellular membranes are represented: phosphatidylcholine (PC), Phosphatidylethanolamine (PE), phosphatidylserine (PS), Phosphatidylinositol phosphates (here, PI(4,5)P2) and cholesterol. In membrane bilayers, the polar heads (top) face the cytosol, while the hydrophobic fatty acid chains (bottom) face the hydrophobic tails of the other leaflets's lipids.