Hi, everyone:<br>I'm trying to get the force field for sphingomyelin by modifying the force filed of DPPC from Dr. Peter Tieleman's website. <br>But
for LJ pairs, there's no description for LC2--OA, N--LP2, N--LH1 and
OA--LH1 in the [pairs] section from lipid.itp. Where can I get the
parameters for these pairs?<br>Thank you in advance.<br>DJ