Re: [ccp4bb] refmac twin refinement vs resolution limit

2021-03-30 Thread Yuji Kado
Dear Eleanor, Thank you so much. As you said, it is a problem that the number of reflections estimated by FreeR set is different from an actual that of reflections because of the low resolution discrepancy. Moreover, twin refinement includes a problem about some overlapping of diffraction

Re: [ccp4bb] refmac twin refinement vs resolution limit

2021-03-29 Thread Eleanor Dodson
Well - I am not sure whether this has anything to do with twin refinement but resolution limits are often a bit iffy. First the low resolution discrepancy. The Free R is generated to a lower and higher resolution than any observation. The FreeR set is meant to be complete for any possible index

[ccp4bb] refmac twin refinement vs resolution limit

2021-03-29 Thread Yuji Kado
When I use refmac restrained refinement with intensity based twin refinement, resolution limit has been changed from 71.4519- 1.9996 to 47.392-1.986. From Log file, before refinement, Scaling and SigmaA resln: 71.4519 1.9996, seems to be correct. But in the middle of log file, around Fom and