Re: [ccp4bb]: Cys modification

["Eleanor J. Dodson" <ccp4@ysbl.york.ac.uk>]

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"David J. Schuller" wrote:
> 
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> On Mon, 17 Apr 2000, Phoebe Rice wrote:
> 
> > If you grew your crystals in cacodylate buffer with DTT around, it could
> > also be dimethyl arsenic.
> 
> as it turns out, arsenic also has an accessible anomalous edge, at 1.044
> A, so if you have access to a tunable source you can work out some of
> these possibilities quite nicely.
> 
> http://brie.bmsc.washington.edu/scatter/


 Most heavy metals have good anomalous signal at CuKa, so the home data
set should show a peak if it is a metal..

Eleanor Dodson