On 04/09/14 19:06, Lie Ma wrote:
> Hello all,
>
> I am trying to make a model of an oligosaccharide which contains several sugar monomers. I obtained the monomers from coot library and put them into the electron density. But I don't know how to make covalent bond between these monomers.
If you are using Coot, you can use Extensions -> Modelling -> Make Link.
If you sugar monomers are reasonably placed Coot's Sphere Refine will
determine the correct link types on the fly (it doesn't believe what's
in the PDB file).
>
> I tried to use PRODRG to generate a model and it gave me one big ligand consisting of several monomers.
Yes, that's not the way to do it...
> However, what I want is to have a chain contains several monomers, and each monomers acts like a residue.
Indeed.
Paul.
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