Re: [ccp4bb]: Cys modification

["David J. Schuller" <schuller@uci.edu>]

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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/

=======================================================================
"We are going to die, and that makes us the lucky ones" - Richard Dawkins
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                        David J. Schuller
                        modern man in a post-modern world
                        University of California-Irvine
                        schuller@uci.edu