I would like to start some experiments using the macrophage galactose-type C-type lectin (MGL) and I’m trying to find some recommendations on the Ca2+ concentrations to use to obtain optimal protein activity.
I characterized (during my phD thesis) different C-type lectins including MGL with their carbohydrate-bases binders using surface plasmon resonance (SPR). I will recommend you to work with this type of buffer: 20 mM Tris pH 7, 150 mM NaCl, 4 mM CaCl2. In this buffer, you should observe nice protein activity and binding.