It could be a cacodylate bridging between two zincs. I would want to
know if anomylous maps show a third peak in the middle.
On 04/30/10 12:41, Maia Cherney wrote:
I think cacodilate is less likely because it's negatively charged as the
carboxy groups that surround the density.
I think it's Zn or it may be another (endogenous) metal ion like Ca. You
need to look at the coordination.
Maia
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All Things Serve the Beam
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David J. Schuller
modern man in a post-modern world
MacCHESS, Cornell University
schul...@cornell.edu
