Are you sure the sequence is right? It looks like tyrosine Phil On 24 Nov 2010, at 12:10, Vinson LIANG wrote:
> Dear all, > > I'm refining a structure and find some strange triangle density on the oxygen > of Ser and Thr at the C terminus. One picture of the strange density is > attached here. Could anyone please give me some suggestions on what this > could be? > > The buffer used during purification is PBS, Tris and NaCl. And > crystallization condition contains PEG3,350 and Mg(NO3)2. > > Thank you all in advance for any suggestion. > > Best, > > Vinson Liang > > > > <triangle_density.gif>
