Dear Charmm users,

I did a simulation of a lipid bilayer by keeping the bilayer center at 0,0,0 while system setup. But while production run, since there was no constraint on the bilayer at all, so is the center of bilayer still 0,0,0?

I wish to calculate the average distance between a methyl carbon atom of DMPC (i.e. say C13) and bilayer center. Simply evaluating the Z coordinate of C13 does not sound appropriate!! Kindly help.

MzZt.