Dear Xianchidong If you are sure it is a divalent ion, Mg would be hard to detect even at a wavelength of 2.07A. best Preben
xianchidong wrote: > Dear All: > When I solved the crystal structure of protein, I found a metal > binding in it. But however, I can not decide which type of atom it is. > I tried ICP-AES and the result suggested the protein contained Ca. I > tried to get anomalous signal at the wavelength of 2.07A. And I > collected the 360 degree with the spacegroup P6 and the average > redundancy is 19.6. But still I can not see the anomalous signal for > that metal even I can see clearly the anomalous signal for sulfur. > Does anybody have suggestions for me? > Thanks in advance. > 2009-06-30 > ------------------------------------------------------------------------ > xianchidong -- Jens Preben Morth, Ph.D Aarhus University Department of Molecular Biology Gustav Wieds Vej 10 C DK - 8000 Aarhus C Tel. +45 8942 5257, Fax. +45 8612 3178 j...@mb.au.dk website: http://person.au.dk/da/j...@mb
