TABLE 3.

Hydrogen-bond acceptor sites corresponding to specific bond indices

Index	Acceptor
1	DPPC1–O3
2	DPPC2–O1
3	DPPC2–O2
4	DPPC2–O3
5	DPPC2–O4
6	DPPC2–O5
7	DPPC2–O6
8	DPPC2–O7
9	DPPC2–O8
10	DPPC3–O8

DPPC1, DPPC2, and DPPC3 refer to the three lipids that form hydrogen bonds with the lysine in Fig. 6 f. O1–O8 refer to the eight different oxygens (also see Fig. 4).