27 1

MASS     1 PCH  864.75000 !2.2 DOPC lipids, upper part.
MASS     2 DOT  864.75000 !2.2 DOPC lipids, lower part.
MASS     3 PSH  866.76000 !2.2 DOPS lipids, upper part.
MASS     4 NAB 1000.00000 !~8 ions (both "+" and "-") with hydration shells.
MASS     5 CLB 1000.00000 !~8 ions (both "+" and "-") with hydration shells.

DEFA FIRS NONE LAST NONE
AUTO ANGLES 

RESI DOPC         0.00
GROUP   
ATOM PCH  PCH     0.00  ! Lipid head and part of the tails
ATOM DOT  DOT     0.00  ! Rest of the tails
BOND PCH DOT

RESI DOPS        -2.20
GROUP   
ATOM PSH  PSH    -2.20  ! Lipid head and part of the tails
ATOM DOT  DOT     0.00  ! Rest of the tails
BOND PSH DOT

RESI SOD  2.20
GROUP
ATOM NAB  NAB  2.20

RESI CLA  -2.20
GROUP
ATOM CLB  CLB  -2.20

END