real number of dihedral types in DPPC

Dear users,

Anyone knows how I can be sure about the exact number of dihedral types in DPPC molecule?

In fact, I used the “charmm2lammps.pl” to convert my psf file into lammps data file, using the following topology and parameter files:
"top_all36_lipid.rtf " and “par_all36_lipid.prm”

Now, I obtained 15 atom types, 18 bond type, 36 angle type and 73 dihedral type. I don’t know where to check these numbers to be sure about the conversion.

Thanks in advance,

Neda

All the charmm2lammps tool is doing is converting the CHARMM

representation of the molecule into a LAMMPS format.

So if you used CHARMM itself with its force field, you should

get the same 15,18,36, etc types.

Steve