AMBER: generate charmm paramater file from amber parm file

From: HL Eastwood <>
Date: Wed, 16 Feb 2005 17:19:56 +0000

Dear amber users

I have an amber derived pdb file and corresponding amber paramater file. Is it
possible for me to generate a charmm parameter file from this data?

An entry in the amber archive posted by Roass Walker suggests using ptraj:

" would want the following input file for ptraj (for amber to charmm):

trajin inputtrajectory.traj.gz
trajout outputtrajectory charmm "

I have done this and it generates a binary trajectory file for charmm. However,
I still require the paramater file. Any suggestions on how to get this?


Hayden Eastwood
Perdita Barran Reasearch Group
Edinburgh University
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Received on Wed Feb 16 2005 - 17:53:01 PST
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