Hi Nicola,
maybe you want to have a look at an older thread I started years ago: https://www.mail-archive.com/[email protected]/msg28031.html [ccp4bb] CC1/2, XDS and resolution cut off - The Mail Archive<https://www.mail-archive.com/[email protected]/msg28031.html> www.mail-archive.com Dear all, We have in our lab a data set collected and are discussing where to cut the resolution for refinement. According to the work of Kai Diederichs and Andy ... And especially the response from Kay Diederich https://www.mail-archive.com/[email protected]/msg28042.html Cheers Marcus Re: [ccp4bb] CC1/2, XDS and resolution cut off<https://www.mail-archive.com/[email protected]/msg28042.html> www.mail-archive.com Dear Marcus, I have a few comments: - we do not suggest any fixed value (like 0.125) for a CC1/2 cutoff. One reason why a fixed value should not be carved in stone is ... Marcus Fislage, PhD Howard Hughes Medical Institute (HHMI) Columbia University Department of Biochemistry and Biophysics Lab of Joachim Frank New York, NY email address: [email protected] Phone: 212.305.9524 Fax: 212.305.9500 ________________________________ From: CCP4 bulletin board <[email protected]> on behalf of Parthasarathy Sampathkumar <[email protected]> Sent: Tuesday, August 29, 2017 10:16:10 AM To: [email protected] Subject: Re: [ccp4bb] CC(1/2) reference Hi Nicola, Here are references for CC1/2; https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3457925/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4684713/ Best Wishes Partha On Tue, Aug 29, 2017 at 10:06 AM Nicola Evans <[email protected]<mailto:[email protected]>> wrote: Hello all, I have heard at several CCP4 meetings and also at Diamond training that a good "cut off" for CC(1/2) is around 0.3 and I/sig(I) is 0.2, but I am struggling to find any journal references to say this (other than demonstrating the merits of CC(1/2) over Rmeas). Can anyone point me in the right direction? Thanks all! Nicola
