Soaking with heavy atoms

• Bart Hazes' collection of properties of heavy metals
• "Towards a rational approach for heavy-atom derivative screening in protein crystallography" by Agniswamy et al, Acta Cryst D 64, 354
• Michael Sawaya's Preparing a Useful Derivative
• Artem Evdokimov's Iodination of protein crystals for fun and profit
• Sugahara et al's Heavy-atom Database System (HATODAS) - a WWW-based tool designed to assist the heavy-atom derivatization of proteins.

References: Lott JS et al. (2003) Acta Cryst D Biol Crystallogr, Dec (Pt 12): 2242-6. Making the most of two crystals: structural analysis of a conserved hypothetical protein using native gel screening and SAD phasing.