Re: [ccp4bb] Protein modeling issue

2019-03-12 Thread Raymond Brown
Best Ray On Sun, 3/10/19, Eleanor Dodson <176a9d5ebad7-dmarc-requ...@jiscmail.ac.uk> wrote: Subject: Re: [ccp4bb] Protein modeling issue To: CCP4BB@JISCMAIL.AC.UK Date: Sunday, March 10, 2019, 3:40 PM Both REFMAC and COOT have an option to

Re: [ccp4bb] Protein modeling issue

2019-03-10 Thread Eleanor Dodson
Both REFMAC and COOT have an option to regularise (coot) or idealise (refmac) a structure. These options will correct bad gemetry if possible, but pay no attention to the fit to density. In general i think it is sensible to inspect the map for regions where there are serious errors high lighted. H

[ccp4bb] Protein modeling issue

2019-03-09 Thread Raymond Brown
Hi folks, The WHATIF server found the following issue in evaluating a protein structure. Structure Z-scores, positive is better than average: chi-1 / chi-2 rotamer normality : -7.278 (bad ( -3.8, 1.6) ) RMS Z-scores, should be close to 1.0: Improper dihedral distribut