Yes, as Jacob says, alternative conformation of the serine. Quite common. Bert ________________________________ From: CCP4 bulletin board [[email protected]] on behalf of Uma Ratu [[email protected]] Sent: Monday, May 21, 2012 4:57 PM To: [email protected] 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
