[phenixbb] how to extend R-free set

[David Cobessi]

Hi Robert,
Using CCP4... ;-)  (maybe Freerflag) you can do it....
David

Robert Immormino wrote:
> Hi,
>
> Hopefully I'm just missing something obvious....
>
> I'm trying to copy the Rfree set from an old set of data, to a new
> mutant structure....and extend to higher resolution.
>
> I've tried:
>
> phenix.reflection_file_converter old.mtz --label="R-free-flags"
> new.sca --label="i_obs,sigma" --mtz new.mtz
>
> and several other combination, but I am still failing to get phenix to
> read multiple data files and output the desired mtz.  I can get just
> the Rfree flags or the I and SigI, but not both.
>
> I also tried with phenix.refine
>
> phenix.refine --dry-run old.pdb old.mtz new.sca ligands.cif
> refinement.input.xray_data.labels="i_obs,sigma"
> refinement.input.xray_data.r_free_flags.label="R-free-flags"
>
> This seems closer, but I get the error:
>
> Sorry: R-free flags not compatible with F-obs array: missing flag for
> 492 F-obs selected for refinement:
>
> Thanks,
> -bob
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>
>   


-- 
David Cobessi
Institut de Biologie Structurale
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