Thank you All for you inputs. Uma
On Mon, May 21, 2012 at 5:06 PM, Van Den Berg, Bert < lambertus.vandenb...@umassmed.edu> wrote: > Yes, as Jacob says, alternative conformation of the serine. Quite common. > > Bert > ------------------------------ > *From:* CCP4 bulletin board [CCP4BB@JISCMAIL.AC.UK] on behalf of Uma Ratu > [rosiso2...@gmail.com] > *Sent:* Monday, May 21, 2012 4:57 PM > > *To:* CCP4BB@JISCMAIL.AC.UK > *Subject:* [ccp4bb] Serine > > Dear All: > > Some of serine residues in my model have extra positive Fo-Fc density at > the edge of side chain. Some don't have. It is not like from phosphates. > > I am wondered what is the cause for these extra density. Could these > serines be post-translational modified? > > I have the images attached. P289ser-0512-1 does not have the extra green, > where P140ser-0512-1 has. > > Thank you for you advice and comment > > Uma >
