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Re: [ccp4bb]: refine using merged MAD data of all 3 wavelength?
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I'd say this is a very good idea: if your crystal did not decay, and if
you don't have a higher-resolution (native) dataset you'd prefer to use,
merging all datasets for super-high redundancy can only improve matters.
Not sure about the averaging f'/f" - do any programs actually use this?
On Wed, 11 Oct 2000, Yong Xiong wrote:
> Date: Wed, 11 Oct 2000 17:32:36 -0400 (EDT)
> From: Yong Xiong <firstname.lastname@example.org>
> To: email@example.com
> Subject: [ccp4bb]: refine using merged MAD data of all 3 wavelength?
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> *** CCP4 home page http://www.dl.ac.uk/CCP/CCP4/main.html ***
> As title, I would like to know whether any one tried to use all 3 wavelength data merged/scaled
> together for the refinement. I tried this on one structure and it appeared to improve the
> refinement. I am not sure the theoretical/practical soundness of doing this. If the
> crystal is stable, it should give a lot more redudency to the data and help the high resolution
> bins. The anomalous/dispersion signals would be messed up but mostly they are not used in
> refinement any way. We could even give an average f' and f" for the merged data, or could we? Any