Thank you, Paul. And do I need to provide additional cif file which describe the bond?
Leo On Sep 4, 2014, at 2:23 PM, Paul Emsley <pems...@mrc-lmb.cam.ac.uk> wrote: > 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. >
