Dear Robbie and Tim,

Thanks a lot for your reply. I just do not understand that if we can change
the R free set during different rounds of refinement, the gap between Rwork
and Rfree would be small, and Rfree would be meaningless, as R-free set is
not "free".

Best regards,

Qixu Cai
Email: caiq...@gmail.com



Robbie Joosten <robbie_joos...@hotmail.com> 于2023年4月28日周五 15:26写道:

> Hi Qixu,
>
> PDB-REDO tries to have a minimum number test set reflections to reduce the
> error margin in R-free. As Tim says this is not a problem but if you reach
> out privately we can change your calculation to use your current testset.
> That is not recommended though.
>
> Cheers,
> Robbie
>
> On 28 Apr 2023 04:51, Qixu Cai <caiq...@gmail.com> wrote:
>
> Dear all,
>
> I'm using the PDB-REDO server to refine my structure. I found that
> PDB-REDO said that 5% R-free set is too small and it created a new R-free
> set.
>
> Is possible for the PDB-REDO server to keep the original R-free set to
> make final Rfree value comparable?
>
> Best regards,
>
> Qixu Cai
> Email: caiq...@gmail.com
>
>
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