[phenixbb] How to fix atoms in refinement
Pavel Afonine
pafonine at lbl.gov
Thu May 7 12:29:52 PDT 2015
Hi Raj,
> Hi, I have flexible a flexible loop in my structure and every time i
> refine it derange ramachandrans. Can anyone suggest how can i fix
> these flexible residues in phenix refinement so basically i don't
> wanna refine them. Can i do this in GUI?
>
Refinement settings -> Modify selections for (XYZ coordinates, this is
the default) -> Edit
then enter atom selections, (example: chain A and resseq 12:15)
Alternatively you can apply Ramachandran plot restraints selectively to
these loops.
Also, doing weights optimization may be helpful too.
Pavel
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