<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;color:#000000;"><div><span class="Apple-style-span" style="font-family: tahoma; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; font-size: medium; "><a name="phipsi"><p>Dear gromacs user,</p><p>I want to extract histograms of phi and psi distribution from the trajectory for any selected residue,Dose gromacs have any tool to satisfied this need?</p><p>any recommend was appreciate,<a name="phipsi"><p style="display: inline !important; "> </p></a></p></a></span></div><div style="position:fixed"></div>
</div></body></html>