Skip to main content
. 2022 Mar 9;126(11):2145–2154. doi: 10.1021/acs.jpcb.2c00292

Figure 5.

Figure 5

TG flip-flop in bilayers. A collective variable is the z distance between the center of mass of the phosphate atoms to the TG glycerol moiety. A depth of 0 represents the membrane center. (a) Illustration of the KV model (left). Attraction between the PL glycerol moiety (PGL) and the TG glycerol moiety (TGL) is controlled via the parameter C. The free energy profiles for TG flip-flop with various C parameters (right). TG does not nucleate with high C values, indicated with dashed lines. (b–d) TG flip-flop profiles with CG and AA force fields in DOPC bilayers (left column) or POPC bilayers (right column).