[ccp4bb] RES: [ccp4bb] Rwork and Rfree the same?

2024-02-29 Thread Rafael Marques
Sorry for jumping into the post, but I would like the community’s opinion about completeness, once this topic was raised here. What could be considered reasonable? Recently I have seen a 65% completeness Crystal structure and, surprisingly, the electron density map was not that bad for a > 3.2 A

Re: [ccp4bb] RES: [ccp4bb] Rwork and Rfree the same?

2024-02-29 Thread Kay Diederichs
Hi Rafael, I guess that you ask for a number to be used as a "cutoff", but there is no such number. Completeness is measured on a continuous scale, typically from 0 to 100%. Higher is better, of course. Resolution shells with low completeness just carry proportionally less information about the

Re: [ccp4bb] RES: [ccp4bb] Rwork and Rfree the same?

2024-03-03 Thread Ben Bax
Fcalc maps look fantastic. Are you sure they were not using an Fcalc for the missing 35% of the data? Ben On 29 Feb 2024, at 21:33, Rafael Marques wrote: Sorry for jumping into the post, but I would like the community’s opinion about completeness, once this topic was raised here. W

Re: [ccp4bb] RES: [ccp4bb] Rwork and Rfree the same?

2024-03-04 Thread Eleanor Dodson
That is extremely likely! - certainly REFMAC will do that.. If 5% missing using DFcalc is a good thing - if 35% is missing not wise.. Eleanor On Mon, 4 Mar 2024 at 07:53, Ben Bax wrote: > > Fcalc maps look fantastic. Are you sure they were not using an Fcalc for > the missing 35% of the data? >