Here we provide lipid molar ratios for LNPs in FDA-approvedPatisiran(a siRNA targets the transthyretin (TTR) mRNA). The molar ratio of lipids in this formulation is D-Lin-MC3-DMA : DSPC : Cholesterol : PEG2000-C-DMG = 50 : 10 : 38.5 : 1.5, and RNA to lipid weight ratio is 0.05...