<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:'times new roman', 'new york', times, serif;font-size:12pt"><div>Hi,</div><div> I wanted to run an atomistic simulation where I would like to constrain helicity of a helical peptide( i.e the initial configuration is an ideal helix) . I was wondering whether there is a way to constrain the helix dihedral angles in Gromacs. Also, if there is any other option to keep the molecule helix, please let me know.</div><div> I am using gromacs4.0.7</div><div>Thanks</div><div>Sanku</div><div style="position:fixed"></div>
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