Maria Hakansson wrote:
> Dear all,
>
> I have a question regarding real-space refinement of Xylotetrose in coot.
>
> Xylotetrose is the 4-mer of D-Xylose (XYS in the monomer library of coot).
> I have set-up Xylotetrose as a polymer consisting of 4 attached
> monomers linked by
> oxygen called O4 (monomer 3002) between carbon C1 (monomer 3001) and
> carbon C4 (monomer 3002) and
> so forth.
>
> However the program does not recognise the link between the rings and
> instead of refining a polymer it
> refines 4 separate D-xylose rings. It does not help to push the rings
> closer, regularisation pulls them apart.
Could be an atom naming issue. It works fine for me.
Paul.
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