Dear Sir/madam,<div><br></div><div><p class="MsoNormal"><span class="apple-style-span"><span lang="EN-US" style="mso-bidi-font-size:12.0pt;font-family:"Arial","sans-serif";color:#333333;
background:white">I have a ligand molecule for which I generated the topology
file using Prodrg software. As the charges and groupings provided by Prodrg are
not much reliable. I need to assign correct charges and groupings for my
ligand. I had referred the article "Practical considerations for building GROMOS-compatible small-molecule topologies". I could assign charges and groupings for most of the molecule except for the heterocyclic structures and sulfur atom in ring. Please help me out...Thanks in advance..</span></span></p>
<div><br></div>Regards,<br>Archana <br>
</div>