Hi Sandeep, if someone sends one, kindly share the references. In general, Ca2+ could have more Asp, Asn kind of coordination and distorted pentagonal bipyramidal geometry with waters (about 2.5A), Cd can also have S- since it is softer, I guess Co might have N/O/S (i.e all three with paired electrons). An inorganic chemistry textbook like Greenwood & Earnshaw or Cotton & Wilkinson could be handy.. or a bioinorganic chemistry book.
HTH, Partha On Fri, Aug 26, 2011 at 7:24 PM, Sandeep <s.talapa...@beatson.gla.ac.uk>wrote: > Hi, > > I crystallised a protein in the presence of Calcium, Cobalt, and Cadmium > and determined its structure. It turns out that I see several metal sites in > the structure, mostly cadmiums. Is there any information published > (preferably a review) which summarises data on cadmium sites in proteins > such as for example the possible coordination numbers of cadmium, distances, > type of side chains found to coordinate with cadmium, etc.? I could extract > all this from the PDB, but a nice review would be simpler to start with. > > Thank you in advance for your help > > Sandeep >