Number density distributions for lipid components and the tail nitrogen atom of TAM (N-TAM). (A) A POPC lipid molecule is parsed into six components: G1, G2, and G3 for the headgroup, and CH, CH2, and CH3 for the hydrocarbon chains. Selected carbon indices used for order parameter calculations (Fig. 7) are indicated. (B) Atom-number averaged number density distributions for the six lipid components depicted in A. The number density distribution of N-TAM was normalized to match the integral of lipid components. To see this figure in color, go online.