Definitely magnesium salt. I've seen it many times. But try to repeat it anyway just to be safe.
Nian On Sat, Dec 1, 2012 at 8:24 PM, Yibin Lin <yyb...@gmail.com> wrote: > Dear Folks, > > I got some crystals at the conditions of 0.1M Lithium sulfate or 0.1 M > MgCl2, 0.1M Sodium citrate 3.5 or Sodium acetic ph5.5, or 0.1M HEPES > pH7.5, or 0.1M Tris pH8.5, 30% PEG400 or 12% PEG4000. Protein contains > 0.017%DDM. > > Could anyone have the experience to say if it is protein crystal? And > how to optimize these crystals. > > Thanks. > > Lin >
