Re: [ccp4bb] Acta Cryst. Endnote Output Style

2015-06-19 Thread Philip Kiser
Hi Jan, The problem is with your journals terms list. That is ​where the journal abbreviations are defined. You should be able to find some precompiled lists from library websites for example. Philip On Fri, Jun 19, 2015 at 5:55 AM, Jann-Patrick Pelz jann.p...@biozentrum.uni-wuerzburg.de

Re: [ccp4bb] Basic Anomalous Scattering Theory

2015-03-12 Thread Philip Kiser
Hi Jacob, Concerning orbital transitions occurring around the absorption edge, in addition to the other helpful suggestions, I would suggest looking at review papers on the fundamentals of x-ray absorption spectroscopy. For example: Yano and Yachandra, Photosynthesis Research, 2009 102:241-254

Re: [ccp4bb] Continuous-Single Versus Coarse-Multiple Sampling

2015-01-23 Thread Philip Kiser
Hi Jacob, It seems reasonable for your straight line case that the two would be equivalent. I would guess though that as the function to be fitted against becomes more complex (e.g. a rectangular hyperbola in enzyme kinetics) it would be advantageous to have more points of the independent

Re: [ccp4bb] Calculating anomalous Fourier maps

2014-08-30 Thread Philip Kiser
In addition to the other suggestions, I would recommend looking at Dr. Merritt's webpage on anomalous scattering for a clear graphical explanation of the anomalous difference Fourier map: http://skuld.bmsc.washington.edu/scatter/AS_Bijvoet.html On Fri, Aug 29, 2014 at 2:43 PM, Alexander Aleshin

Re: [ccp4bb] cc1/2 value in hkl2000

2014-08-15 Thread Philip Kiser
If you are using newer versions of HKL2000 it is printed in the scale.log file. On Fri, Aug 15, 2014 at 9:40 AM, Faisal Tarique faisaltari...@gmail.com wrote: Hello everyone Can anybody please tell me where to locate the Corelation value between half sets (CC1/2) of a data processed through

Re: [ccp4bb] desiring untouched ligand

2014-08-14 Thread Philip Kiser
Remie, Look at the following webpage: http://www.ysbl.york.ac.uk/refmac/data/refmac_news.html The harmonic restraints need to go into a keyword file that is uploaded to the refmac keyword field field in the GUI. Philip On Thu, Aug 14, 2014 at 11:11 AM, Remie Fawaz-Touma remiefa...@gmail.com

Re: [ccp4bb] twin or untwinned

2014-07-03 Thread Philip Kiser
Hi Yamei, A possible explanation is that the actual space group is P4(2) but the data are perfectly hemihedrally twinned, which makes the crystal appear to possess 422 point group symmetry. No twin operators are found because merohedral twinning is not possible in crystals with true 422 symmetry.

Re: [ccp4bb] Rename chain ID of water molecules

2014-07-03 Thread Philip Kiser
Hi Wenhe, The ccp4 program sortwater will perform this task. Philip On Wed, Jul 2, 2014 at 11:42 PM, Wenhe wenhezhong.xmu@gmail.com wrote: Dear CCP4BB members, I want to keep the chain ID of water molecules the same as their interacting protein molecule. For example, I have two

Re: [ccp4bb] Systematically shifted peak in 2Fo-Fc and BDF maps

2014-04-24 Thread Philip Kiser
Hi Petr, A few thoughts: 1) The Bijvoet difference Fourier is an approximation to the true imaginary part of the electron density, and because of this shifts in the positions of peaks in this map relative to the 2Fo-Fc map might be expected. This is described in Hendrickson et al. Acta Cryst A43