Dear Brenda Check out malonate http://www.ncbi.nlm.nih.gov/pubmed/14646118? ordinalpos=2&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubm ed_DefaultReportPanel.Pubmed_RVDocSum Malonate: a versatile cryoprotectant and stabilizing solution for salt-grown macromolecular crystals. Holyoak T, Fenn TD, Wilson MA, Moulin AG, Ringe D, Petsko GA. Regards Christine On 19/08/2009, at 9:18 AM, Schulman, Brenda wrote: > Hello! > > I would be grateful for suggestions on cryoprotectants for crystals > growing > in > 3M ammonium sulfate. > > Thanks! > > Brenda > > > Email Disclaimer: www.stjude.org/emaildisclaimer