Hello
I have three peptide strands with the sequence HHQALVFFA. I am trying to create a .gro file of these. But I don' want to merge these chains together, as the N termini are not capped (NH3+) When I do pdb2gmx, even when I am not using the -merge option, the program is still merging the chains together. Since they are actually separate in reality, this is causing many problems, not the least of which is that the charge on the system is being cited as +1, when it should be +3.
What should I do to get rid of this problem?
Thanks
Ashutosh Jogalekar
Emory University
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