Re: [ccp4bb] SOS from last century!

2014-05-07 Thread Karthikeyan S.
Hi Charlie, From molscript 2.1.2 you can directly create png, jpeg or gif also, default being postscript file. At least it is working in linux. I am not sure in iMac. Just type molscript -h. It should give the options... HTH -Karthik On 5/6/2014 10:45 PM, Carter, Charlie wrote: I need help

[ccp4bb] AW: SOS from last century!

2014-05-07 Thread Herman . Schreuder
It can be done with pymol: In the box in the lower left corner is an item selecting residues. By clicking on residues you can change it to atoms or C-alphas When you now click on the appropriate active site atoms, you can select the alpha carbons and a (sele) item appears. In the (sele) item

[ccp4bb] CCP4-6.4.0 Update 014

2014-05-07 Thread charles . ballard
Dear CCP4 Users An update for the CCP4-6.4.0 series has just been released, consisting of the following changes * refmac5: 5.8.0071, fix for peptide planarity * buccaneer: version 1.6 with new MR modes and user interface * pointless: version 1.9.8, fixes for multilattice and output in qtrview *

Re: [ccp4bb] AW: [ccp4bb] Refining Metal Ion Occupancy

2014-05-07 Thread Bernhard Rupp
the negative difference density surrounding your metal ion shows that the lower occupancy could not be fudged by a higher B-factor Because there is a clear difference between high B-factor and low occupancy: High B factor attenuates high resolution scattering most, while lower occupancy just

Re: [ccp4bb] SOS from last century!

2014-05-07 Thread Carter, Charlie
Many thanks to Tim and Nat for, respectively, answering both questions fully, and to Ethan Merritt for subsequent help!! Charlie On May 6, 2014, at 1:24 PM, Tim Gruene wrote: Dear Charlie, I still use molscript quite a bit, it is not so old fashioned as you might think. Raster3D is even

Re: [ccp4bb] AW: [ccp4bb] Refining Metal Ion Occupancy

2014-05-07 Thread Tim Gruene
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 P.S.: For clarity, I meant to say 'calculate' (with full-matrix refinement) instead of 'collect'. Tim On 05/07/2014 04:52 PM, Tim Gruene wrote: Dear Bernhard, I just happen to collect the correlation between ADP and occupancy for a publication

[ccp4bb] LAST DAY TO REGISTER: SBGrid/NE-CAT Computing School

2014-05-07 Thread Michelle Ottaviano
We're in the final stages of planning for our June Computing School and *registration will close on Friday. *Join us in June for our data processing workshop followed by Phenix and Schrodinger/BioLuminate workshops. *Register Here

Re: [ccp4bb] Increase in Rfee as the number of cycles increase, using Refmac

2014-05-07 Thread Ian Tickle
Hi Amit Most likely nothing is going wrong. Your final Rfree looks quite respectable for 2.8 Ang. data. It's meaningless to compare the Rfree at the beginning of a refinement with that at the end. Rfree is only meaningful if the refinement has converged. So it is valid to compare the Rfree at

[ccp4bb] Increase in Rfee as the number of cycles increase, using Refmac

2014-05-07 Thread Amit Kumar
Hello, I have a 2.8 angstrom structure of a protein ligand complex. The R/R free before adding the ligand was 0.21614/0.27760 and after adding the ligand, the R/Rfree is 0.2030/0.2691. . However while refining the structure by Refmac 5, I see a decrease in R factor but an increase in R free as

Re: [ccp4bb] AW: [ccp4bb] Refining Metal Ion Occupancy

2014-05-07 Thread Edward A. Berry
On 05/07/2014 10:52 AM, Tim Gruene wrote: At 2.5A resolution (the resolution this thread is about) But maps ae not made at 2.5 A but from say 30A to 2.5 A. In principle (i.e. if the 0,0,0 reflection were used), the effect of diminishing the amplitude of high resolution terms is not to

Re: [ccp4bb] AW: [ccp4bb] Refining Metal Ion Occupancy

2014-05-07 Thread Tim Gruene
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Ed, I guess it depends on what 'successfully' means. The large correlation implies quite an error margin, and I find an occupancy range of +/- 0.2 - 0.3 quite a lot, although this impression may vary depending on what you are discussing w.r.t. the

[ccp4bb] Space group problem

2014-05-07 Thread Rain Field
Hi all, I have a 360 degree data set collect on home beam. I used XDS to integrate the frames in P1. I progressively merge the data from P1 to P2 or P1 to P3 in XDS and attach the log below. The cell looks like P3 and pointless suggest P6. But the Rmerge and Rmeas are much higher than normal at

Re: [ccp4bb] Space group problem

2014-05-07 Thread Rain Field
additional info: If I let xds go through, it will choose P6. actually pointless suggest P62/P64. The thing is the Rmeas and Rmerge are significantly higher for P2/P3/P6 than P1, especially the highest shell. That indicates those higher symmetry ones are not the choice, it that right? (Actually,

Re: [ccp4bb] Space group problem

2014-05-07 Thread Rain Field
I thought there was a theoretical Rmeas number for I/sigma=2 that is around 50%? In my case, the Rmeas is much higher. Before, we reported P62(4) and got rejected. I'll just change a journal. Hopefully reviewer will not be too picky about that. Thanks to everyone!

Re: [ccp4bb] Space group problem

2014-05-07 Thread Craig Bingman
It is definitely P6something or P3something with a twinning about the unique axis. The differences in merging statistics between P2 P3 and P6 are not very significant in my opinion. On May 7, 2014, at 1:16 PM, Rain Field rainfiel...@163.com wrote: additional info: If I let xds go through,

Re: [ccp4bb] Space group problem

2014-05-07 Thread Tim Gruene
Hello Rain Field, I third Felix and Craig, there is nothing unusual about the statistics table you present. The data look pretty good and I would assume P6_something and integrate further than 3.1A. Regards, Tim On 05/07/2014 08:16 PM, Rain Field wrote: additional info: If I let xds go