or perhaps something in the non-visible part of the ligand pulling electrons out of the rings? can this somehow be specified as ligand input? on the other hand, I guess this is near the "end" of refinement, so the Fo-Fc difference map is probably very flat - meaning that 3 sigma corresponds to very few electrons per cubic Å and may be called "noise".
> On 22 Feb 2022, at 13:01, Jon Cooper > <0000488a26d62010-dmarc-requ...@jiscmail.ac.uk> wrote: > > I thought it was tryptophan but the nitrogen and extra bond are in the wrong > places so it must be a ligand and, if so, have you tried refining the > occupancy? Cheers, Jon.C. > > > Sent from ProtonMail mobile > > > > -------- Original Message -------- > On 22 Feb 2022, 05:34, S < shine.star1...@gmail.com> wrote: > > Hi All, > > I am getting this negative density in the centre of the ring. Could you > please help me with this? > > > Resolution: 1.7A > 2FoFc - 1.5 > FoFc - 3.0 > > Thanks in advance. > Regards, > Renu > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 > <https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1> > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 > <https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1> ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/
