Dear Jacob,
You may find useful this web site by Marjorie Harding about metal coordination sites in proteins
http://tanna.bch.ed.ac.uk/
best regards
Stefano Benini, Ph.D.
Assistant Professor
http://pro.unibz.it/staff2/sbenini/
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Bio-organic Chemistry Laboratory
Faculty of Science and Technology
Free University of Bolzano
Piazza Universitą, 5
39100 Bolzano, Italy
Office (room K2.14): +39 0471 017128
Laboratory (room E.012): +39 0471 017901
Fax: +39 0471 017009
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-----Original Message-----
From: CCP4 bulletin board [mailto:[log in to unmask]] On Behalf Of Jacob Keller
Sent: Wednesday, 16 November, 2011 19:21
To: [log in to unmask]
Subject: [ccp4bb] Distinguish NH4 from Na?
Dear Crystallographers,
I have crystals containing 666mM NH4 and 540mM Na, and there appears
to be a "water" which is only about 2.2 Ang from some polar atoms. It
is currently reasonably happy as a Na, but is there any reasonable way
to decide which cation is there?
JPK
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Jacob Pearson Keller
Northwestern University
Medical Scientist Training Program
email: [log in to unmask]
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