Yoram Puius (puius at aecom.yu.edu) wrote:
: Dear netters:
: I have a blob of electron density which I believe is a hydrated, hexa-
: coordinate Mg++ ion. It is not physiologically relevant, and appears to be
: bound between the molecule and symmetry mate. It is strong Fo-Fc
: density, and looks like a square slab with bumps on top and bottom, i.e.
: octahedrally coordinated, and doesn't look much like any other solutes
: in the crystallization buffer.
: So here's my question: Does anyone have the magnesium-water distances in
: solvated hexacoordinate Mg(II)? I have tried a few references, and am not
: really sure where else to look. Any method -- crystallography, solution
: spectroscopy, etc. -- would be great.
: Many thanks in advance,
: Yoram
: --
: _____________________________________________________________________________
: Yoram A. Puius Albert Einstein College of Medicine
:mailto://puius@aecom.yu.edu Department of Biochemistry
: M.D.-Ph.D. student 1300 Morris Park Avenue
: 5th year Bronx, NY 10461
: _____________________________________________________________________________
: Life is the neverending struggle to properly titrate caffeine with beer.
: - Stephen K. Burley
You could search the Cambridge structural database for small molecules with
hydrated magnesiums and see what the measured distances are.
Allan M. Sharp
