Metal ion electron density

Robert D Scavetta scavetta at XTREME.UCR.EDU
Thu May 30 16:34:08 EST 1996


Hi all;

We have a protein that coordinates Ca2+.  The electron density is oblong
instead of spherical.  This is true in both the Fo-Fc without Ca2+ in the model
and in the 2Fo-Fc with Ca2+.

Does any one else see this non-spherical density phenomenom in a Ca2+ (or other
metal ion) coordinating a macromolecule?

Thanks,


-- 
Robert D Scavetta
Department of Biochemistry
University of California, Riverside  92521
email:	scavetta at xtreme.ucr.edu
phone:	(909) 787-4196
fax:	(909) 787-3590



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