In which solution can I keep my protein for the NexTal Cubic Phase kits?

The solution in which the protein is kept is another experimental factor that needs to be tested — just like when working with soluble proteins. Your protein solution contains an unknown amount of detergents, salt, lipids, various pH and maybe additional additives (e.g.. DTT etc). Organic compounds at a high concentration (>10%) are however not compatible with the NeXtal CubicPhase system.