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Re: [ccp4bb]: Can I find a zinc in a haystack?

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Zn has a nice anomalous signal  (delta f" = 0.678) at CuKalpha.
You should be able to detect it directly with careful data collection.
Why bother to go to the absorption edge?

> I don't have much experience in these matters.  Would this simply be too
> small a signal for this large of a protein?

I don't think so.  It's easy to try.