[gmx-users] simulate a protein covalently binding with a organic molecule

[aixintiankong]

Dear,
    Please help me . i want to simulate a systme of the protein covalently bind with a organic molecule.  Part of the model is standard resides and the rest it is nonstandard(HETNAM) resides. The two parts covalently bind to each other.  i don't know how to get the topology of the model.
    wait for you help 
    thank you very much!