kumud agarwal wrote:
I want to do energy minimization of a small peptide (19 residues long) file (in pdb format).

Can you please tell which tutorial is best for this purpose and which force field should I use.


Any of these should be fine:

http://www.gromacs.org/Documentation/Tutorials#General_GROMACS_Use

As for the force field, there is no single "best" option. Each force field has its own sucesses and failures. You should plan to invest significant time learning about each of the force fields and deciding which is best for your application, based on known limitations and the underlying theoretical basis for it. Choosing a force field is one of the most significant steps in conducting a quality simulation.

-Justin

--
========================================

Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
MILES-IGERT Trainee
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin

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