Re: [ccp4bb] what would be the best metric to asses the quality of a mtz file?

2021-11-04 Thread James Holton
Ahh, waters.  Where would structure-related debate be without them? I see. So if your default refinement procedure is to add an unspecified number of waters, then yes Rwork might not be all that useful, as it will depend on how the building goes. Again, it all depends on what you want your da

Re: [ccp4bb] MrBUMP for cryo-EM

2021-11-04 Thread Gildea, Richard (DLSLtd,RAL,LSCI)
"PDBLOCAL " should do exactly what you want: https://www.ccp4.ac.uk/html/mrbump.html#pdblocal-directory Dr Richard Gildea Data Analysis Scientist Tel: +441235 77 8078 Diamond Light Source Ltd. Diamond House Harwell Science & Innovation Campus Didcot Oxfordshire OX11 0DE _

Re: [ccp4bb] what would be the best metric to asses the quality of a mtz file?

2021-11-04 Thread Ian Tickle
Hi Clemens OK so you're saying use only the reflections that are in common between all datasets and keep the parameterisation the same. There are clearly two distinctly different ways in which datasets can differ: either a different set of indices due to different resolution cut-offs or completen

Re: [ccp4bb] what would be the best metric to asses the quality of a mtz file?

2021-11-04 Thread Clemens Vonrhein
On Wed, Nov 03, 2021 at 12:54:00PM +, Ian Tickle wrote: > Suppose you had to compare two datasets differing only in their > high-resolution cut-offs. Now Rwork, Rfree and Rall will inevitably have > higher values at the high d* end, which means that if you apply a cut-off > at the high d* end

[ccp4bb] MrBUMP for cryo-EM

2021-11-04 Thread Schreuder, Herman /DE
Dear Community, I just came accross a paper on the use of MrBUMP to fit pdb models to cryo-EM maps: https://scripts.iucr.org/cgi-bin/paper?S2059798321009165 However, it turned out that the program tries to download coordinates directly from the pdb, which our firewall does not allow. Is there a

[ccp4bb] PostDoc position in Structural Biology of Membrane Repair

2021-11-04 Thread Oliver Daumke
A two-year PostDoc position according to German pay grade 13, with the possibility of extension, is available from February 2022 in the group of Oliver Daumke at the Max-Delbrück-Center in Berlin in the area of ‘Structural biology of membrane repair’, with a focus on cryoEM studies. The Daumke

[ccp4bb] Online EM Course

2021-11-04 Thread Nicholas Keep
Please pass on to students/colleagues who may be interested. The Department of Biological Sciences at Birkbeck, University of London is offering an on line, postgraduate course module on Macromolecular and Cellular Electron Microscopy, in the spring term January-March 2022. It will cover the b

[ccp4bb] eSPC, an Online Data Analysis Platform for Molecular Biophysics

2021-11-04 Thread Margret Fischer
Dear CCP4 community, I would like to share our new software for data analysis of Molecular Biophysics experiments The platform enables users to upload and analyse raw data from several experimental techniques: steady-state fluorescence spectroscopy, microscale thermophoresis, and differential