Hi Bala, Chimera doesn't write any trajectory formats, so the answer is clearly no. VMD might be able to do this, though I'm guessing it doesn't write the GROMACS .trj file format. There does seem to be a standalone script that does exactly what you want though. It's here: http://chemistry.csulb.edu/ffamber/tools.html --Eric On Mar 31, 2008, at 2:42 AM, bala wrote:

Dear Chimerians,

I have an amber trajectory. I want to use gromacs to do some analysis. Is it possible in chimera to i) convert amber traj to gromacs traj format ii) convert amber topo file to gromacs topo format

Thanks, Bala

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