Re: [AMBER] Adding external forces to amber

From: Matias Machado <>
Date: Sat, 06 Jul 2019 16:22:22 -0300 (UYT)

Dear Mohammad,

Did you mean "electric field"?

In which case, check for keywords efx, efy, efz, efn, efphase, effreq in the AMBER 2019 Reference Manual []



Researcher at Biomolecular Simulations Lab.
Institut Pasteur de Montevideo | Uruguay

----- Mensaje original -----
De: "Mohammad Hassan Khatami" <>
Para: "AMBER Mailing List" <>
Enviados: Sábado, 6 de Julio 2019 10:59:49
Asunto: [AMBER] Adding external forces to amber

Hello there,
I am a GROMACS user, and I am new to amber environment.
I am just wondering if it is possible to add external forces to AMBER? I know how to do it in GROMACS, but I want to know if it is possible in AMBER, too? Which file should I change for it?
Basically the force is an electric force, which is in homogeneous (not constant).
I searched a lot for it but did not find any clear answer.
Could you please help me with it?


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