Re: [ccp4bb] brute force molecular replacement

2009-01-25 Thread Nicholas M Glykos
Dear Xie, > What are the other brute force programs for molecular replacement out > there? Qs (available via http://www.mbg.duth.gr/~glykos/Qs.html) can be as brutal with your CPU(s) as they can take. Nicholas -- Dr Nicholas M. Glykos, Department of Molecular Biology

[ccp4bb] more on lattice translocation defects

2009-01-25 Thread Laurie Betts
May I inquire if someone has a copy of Zhu et. al. (Acta Cryst. D. 2008 D64, 843-850) that might be posted somewhere free? I don't have subscription to Acta Cryst D and this one is possibly a problem I have in a structure and I don't understand what it means exactly. Or if someone can give a defi

[ccp4bb] Problem during refinement

2009-01-25 Thread anil kumar
Dear All, I am refining a structure (resolution 2.4A) using Refmac and am getting a lot of cis-peptides (about 16 for prolines as well as other amino acids). There are some side chain swaps as well leading to high differences Rfactor: 20.6 and Rfree: 27.6. Although I tried to convert them

Re: [ccp4bb] Problem during refinement

2009-01-25 Thread Garib Murshudov
IT could be miscommunication between refmac and coot. Try to remove cispep lines from your pdb and refine again. Then it may work. After model building info about cispep and/or ssbridge should be removed from the pdb file (unless you are confident about them) regards Garib On 25 Jan 2009,

Re: [ccp4bb] cbuccanner.exam failed with libFFTW generated by Intel MKL

2009-01-25 Thread Nobuo OKAZAKI
Dear Kevin, Thanks for your advice. I compared cpirate.exam log between pre-built and intel-FFT linked. the log values seems distinctly different. Maps with pre-build MLPHARE and intel-FFT don't seem so different. So, I tried the comparison using phase which estimated by pre-build mlphare.exam. H

Re: [ccp4bb] cbuccanner.exam failed with libFFTW generated by Intel MKL

2009-01-25 Thread Nobuo OKAZAKI
I have checked CLIPPER with lib/clipper/examples/test.csh and compared logs between gcc and intel-FFT. "diff" output about 1000 different lines. These are few lines of output. (intel-FFT) < HKL = ( 2, 2, 0) 198 306:8.25 306: 198 306 < HKL = ( 2, 2, 1) 199 153:8.29 153: 199 153