[gmx-users] .GRO and .TOP files editing

Karthikeyan Pasupathy karthik3k4md at gmail.com
Tue Mar 6 07:53:07 CET 2007

I have a polymer molecule (non-protein).
Therefore I could not use pdb2gmx and I tried to use PRODRG, but it could
process only small molecule.
I was suggested to run PRODRG with small molecule and manually stich the top

Therefore I used a small molecule and obtained the .gro and .top files.
I have no clue how to stich this .top file.
Shouldn't I also make a .gro file on my own to proceed further ?

Is there any other alternative (other than PRODRG) to make these two files
Is there any software package/tool for file stitching?

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