- Chimera-users - RBVI Mailing Lists

barycenter of a model
by mljin 13 Sep '17

13 Sep '17

Dear USCF Chimera developers, I got a question here, how to find the barycenter of a model in UCSF Chimera? And the Model has a C2 symmetry, I can only find the symmetry axis. Best regards, Mingliang Jin NCPSS, SIBCB, CAS

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Re: [Chimera-users] [chimerax-users] Color palettes - ColorBrewer support?
by Elaine Meng 12 Sep '17

12 Sep '17

HI Oli, Thanks for the suggestion. I agree these would be great to have in ChimeraX, and we certainly haven’t ruled it out… but (as you know) many things are vying for developer time. I would certainly use those palettes if they were available. We’re aware of Colorbrewer and actually its palettes have been in Chimera’s Palette Editor for quite a while: <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/palette.html> However, they never got interfaced with coloring by value and the only direct use was for gradient-coloring the background… admittedly not the best use of most multicolor schemes. Best, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco > On Sep 8, 2017, at 8:35 AM, Oliver Clarke <olibclarke(a)gmail.com> wrote: > > Hi, > > I see in the help for the “rainbow” command that there is an option for web-fetched palettes – any chance for integrating support for ColorBrewer ( http://colorbrewer2.org/#)? > > It has different very well-designed palettes for sequential (e.g. color by residue) divergent (e.g. color by charge or hydrophobicity) and qualitative (e.g. color by chain) data, and they are designed to be colorblind-safe etc. > > It’s intended for cartography, but I have manually used their palettes for structural biology with pleasing results – the full set of palettes can be downloaded as JSON or in an excel spreadsheet. > > Cheers > Oli > > _______________________________________________ > ChimeraX-users mailing list > ChimeraX-users(a)cgl.ucsf.edu > Manage subscription: > http://plato.cgl.ucsf.edu/mailman/listinfo/chimerax-users

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change the smoothness of a shape
by C.J. 12 Sep '17

12 Sep '17

Hi specialists, I make a shape and set color to it according to another map,but the color of the shape didn't look smooth. May I change the smoothness of the shape in command-line? Best regards! Jianhao

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Undo Move with movewholemolecules false
by Oliver Clarke 12 Sep '17

12 Sep '17

Hi, Undo move is really useful when one accidentally moves a model relative to another using fitmap. However, it doesn’t work when a part of one model is moved relative to another part – e.g `fitmap sel #1 movewholemolecules false`. Would there be a possibility of making `Undo Move` recognize intra-model movements, if not in Chimera then in ChimeraX? Cheers Oli

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Save PDB
by samaha th 12 Sep '17

12 Sep '17

Dear Sir/Madam, I would like to know how to save single protein-ligand complex pose using chimera. While saving I am getting an error message mentioning- "You must provide a file name that contains either $name or $number, which will be changed to the model name or model number (respectively) in the final saved file name". How to solve the issue.

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find the barycenter of a model
by mljin 11 Sep '17

11 Sep '17

Dear USCF Chimera developers, I got a question here, how to find the barycenter of a model in UCSF Chimera? And the Model has a C2 symmetry, I can only find the symmetry axis. Appreciate for the effort you've done! Best regards, Mingliang Jin NCPSS, SIBCB, CAS

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Re: [Chimera-users] Chimera-users Digest, Vol 173, Issue 3
by Pu Qian 08 Sep '17

08 Sep '17

Dear Chimera developers, I'm using Chimera to estimate molecular weight from cryo-em map through volume viewer/tools/measure volume and area/ The value of the volume I got is in e3 unit. What dies this e3 mean. This e3 unit is used for area as well, which confused me. The version I'm using is 1.12. It seems that the e3 equals nm3, but I'm not sure. It would be a great appreciated if you could help me to make it clear. Thanks Best regards Qian On 7 September 2017 at 16:44, <chimera-users-request(a)cgl.ucsf.edu> wrote: > Send Chimera-users mailing list submissions to > chimera-users(a)cgl.ucsf.edu > > To subscribe or unsubscribe via the World Wide Web, visit > http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users > or, via email, send a message with subject or body 'help' to > chimera-users-request(a)cgl.ucsf.edu > > You can reach the person managing the list at > chimera-users-owner(a)cgl.ucsf.edu > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Chimera-users digest..." > > > Today's Topics: > > 1. COX inhibitor demo discrepancy (simon chapman) > 2. longbond command documentation? (Oliver Clarke) > 3. Re: Batch mode for Chimera (Elaine Meng) > 4. Re: COX inhibitor demo discrepancy (Elaine Meng) > 5. Re: longbond command documentation? (Elaine Meng) > 6. Re: COX inhibitor demo discrepancy (simon chapman) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 6 Sep 2017 12:17:56 +0100 > From: simon chapman <rowanlodge19(a)gmail.com> > To: chimera-users(a)cgl.ucsf.edu > Subject: [Chimera-users] COX inhibitor demo discrepancy > Message-ID: > <CAJPu8_4y4xVjZiXnT3TRXOj7XDnAtg2D7T-VuOQ7BTV3NdVteQ@mail. > gmail.com> > Content-Type: text/plain; charset="utf-8" > > Hi, I'm very impressed with Chimera as a user of only 3 weeks so far > > Trying out the various facilities has been a very useful exercise for > completing my Masters in MedChem. > > However, when I emulated the tutorial covering COX 1 and 2 inhibition, > inputting the molecules fluribrofen and SC558 I generated via DS Visualiser > bind at the outside edge of the enzymes. Not centrally as displayed in the > video. > > I also noted the molecular data in ViewDock, ie: energies etc, is missing. > The table is blank other than the molecule number. Selecting 'Column' etc > has no effect. The 'H-bonds' option does display however. > > I've probably done something wrong, hey ho...but can you enlighten me? > > Best wishes Simon >

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Color palettes - ColorBrewer support?
by Oliver Clarke 08 Sep '17

08 Sep '17

Hi, I see in the help for the “rainbow” command that there is an option for web-fetched palettes – any chance for integrating support for ColorBrewer ( http://colorbrewer2.org/#)? It has different very well-designed palettes for sequential (e.g. color by residue) divergent (e.g. color by charge or hydrophobicity) and qualitative (e.g. color by chain) data, and they are designed to be colorblind-safe etc. It’s intended for cartography, but I have manually used their palettes for structural biology with pleasing results – the full set of palettes can be downloaded as JSON or in an excel spreadsheet. Cheers Oli

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Re: [Chimera-users] Batch mode for Chimera
by James Starlight 08 Sep '17

08 Sep '17

Hi Greg, I am using Ubuntu with Nvidia driver. I have updated all those packages and copy files to chimera_batch lib dir but it was the same effect. then I found that the problem was hidden in my batch script! "preset apply pub 2" produced that crash ! but if I change it to "preset app int all" everything is fine. P.S. as I found in the resulted images on the default the protein is aligned along its Z vector. Is it possible to turn it via some command to display in-front or in the pseudo-isometrical projection? Thanks!! Gleb 2017-09-04 10:08 GMT+02:00 James Starlight <jmsstarlight(a)gmail.com>: > Hi Greg, > > I am using Ubuntu with Nvidia driver. > > I have updated all those packages and copy files to chimera_batch lib > dir but it was the same effect. > > then I found that the problem was hidden in my batch script! > "preset apply pub 2" produced that crash ! > but if I change it to "preset app int all" everything is fine. > > P.S. as I found in the resulted images on the default the protein is > aligned along its Z vector. Is it possible to turn it via some command > to display in-front or in the pseudo-isometrical projection? > > Thanks!! > > Gleb > > 2017-09-03 2:58 GMT+02:00 Greg Couch <gregc(a)cgl.ucsf.edu>: >> My guess is it is a graphics driver problem. >> >> We haven't updated the software OpenGL driver that is bundled with the >> headless Chimera in ages (Mesa 7.6.1), but we have updated Chimera's use of >> OpenGL. Chances are that your Linux server has newer version. So assuming >> you don't have a graphics driver installed, you should try moving aside the >> libGL.so* and libOSMesa.so* files in your >> /home/gleb/.local/UCSF-Chimera64-batch/lib directory so chimera will use the >> system versions. You might need to install those libraries on your system. >> On CentOS/RHEL, they are the mesa-libOSMesa and mesa-libGL packages. On >> Debian/Ubuntu, they are the libosmesa6 and libgl1-mesa-dev packages. >> >> If you have an AMD/NVIDIA graphics driver installed, then you will want to >> copy the Mesa versions of libGL.so and libOSMesa.so to your >> /home/gleb/.local/UCSF-Chimera64-batch/lib directory. On CentOS/RHEL, the >> AMD/NVIDIA installers should have moved the Mesa versions aside somewhere, >> so they could be restored with the driver is uninstalled -- it will take >> some detective work to find them. On Ubuntu, the libGL.so* files are in >> /usr/lib/x86_64-linux-gnu/mesa/. >> >> HTH, >> >> Greg >> >> >> >> On 9/1/2017 1:23 AM, James Starlight wrote: >>> >>> now the errors of the execution of the script using headless chimera: >>> >>> Opening rmsf_visu_AT1_dry_apo.2rep.step7_1.pdb... >>> The following problems occurred while reading PDB file for >>> rmsf_visu_AT1_dry_apo.2rep.step7_1.pdb >>> warning: Ignored bad PDB record found on line 2 >>> >>> Opened rmsf_visu_AT1_dry_apo.2rep.step7_1.pdb containing 1 model, 903 >>> atoms, and 301 residues >>> Rendering high resolution image... >>> ./run.sh: line 113: 14479 Segmentation fault (core dumped) >>> chimera_batch $pdb "${temp}"/script_${name}.cmd >>> >>> >>> the same with a pow-ray render >>> >>> Opened rmsf_visu_AT1_wat_Na.3rep.step7_1.pdb containing 1 model, 903 >>> atoms, and 301 residues >>> Generating POV-Ray data file >>> Exporting POV-Ray data to >>> >>> /home/gleb/Desktop/Scripts/MegaAnalysis/output/plots/rmsf/rmsf_AT1_wat_Na.3rep.pov >>> Ignoring CHIMERA environment variable >>> Parse error at line 1: >>> no element found >>> >>> >>> here is my script: >>> >>> preset apply publication 2 >>> rangecolor bfactor 2 blue 30 red 50 yellow >>> copy file >>> /home/gleb/Desktop/Scripts/MegaAnalysis/output/plots/rmsf/AT1_wat_apo.3rep.png >>> png width 800 height 600 >>> >>> >>> I have made the same images in chimera GUI and it worked very well. >>> >>> Is it possible to run same script using in chimera-gui but from batch >>> mode? >>> >>> 2017-08-31 22:04 GMT+02:00 Greg Couch <gregc(a)cgl.ucsf.edu>: >>>> >>>> You must have the given the "key" argument to the rangecolor command. >>>> That >>>> option tries to display the Color Key tool which want you to use the >>>> mouse >>>> to position the color key in the graphics window. That is not possible >>>> in >>>> batch mode. You'll need to add the color key afterwards with an image >>>> editor if you need it. >>>> >>>> HTH, >>>> >>>> Greg >>>> >>>> >>>> >>>> On 08/31/2017 01:00 AM, James Starlight wrote: >>>>> >>>>> Thanks Eric! >>>>> >>>>> Everything works fine with the exception of the copy command. On the >>>>> rendering stage I have: >>>>> >>>>> >>>>> Opened AT1_dry_apo.1rep.step7_1.pdb containing 1 model, 57791 atoms, >>>>> and 12661 residues >>>>> Traceback (most recent call last): >>>>> File "/home/gleb/.local/UCSF-Chimera64-batch/share/chimeraInit.py", >>>>> line 683, in init >>>>> chimera.openModels.open(a, prefixableType=1) >>>>> File >>>>> "/home/gleb/.local/UCSF-Chimera64-batch/share/chimera/__init__.py", >>>>> line 1951, in open >>>>> models = func(filename, *args, **kw) >>>>> File >>>>> >>>>> "/home/gleb/.local/UCSF-Chimera64-batch/share/Midas/ChimeraExtension.py", >>>>> line 31, in func >>>>> processCommandFile(fileName) >>>>> File >>>>> "/home/gleb/.local/UCSF-Chimera64-batch/share/Midas/midas_text.py", >>>>> line 108, in processCommandFile >>>>> _processFile(f, emulateRead, filename) >>>>> File >>>>> "/home/gleb/.local/UCSF-Chimera64-batch/share/Midas/midas_text.py", >>>>> line 143, in _processFile >>>>> if makeCommand(line): >>>>> File >>>>> "/home/gleb/.local/UCSF-Chimera64-batch/share/Midas/midas_text.py", >>>>> line 69, in makeCommand >>>>> f(c, args) >>>>> File >>>>> "/home/gleb/.local/UCSF-Chimera64-batch/share/Midas/midas_text.py", >>>>> line 1786, in doRangeColor >>>>> showKey=key) >>>>> File >>>>> "/home/gleb/.local/UCSF-Chimera64-batch/share/Midas/__init__.py", >>>>> line 2526, in rangeColor >>>>> from Ilabel.gui import IlabelDialog >>>>> File "/home/gleb/.local/UCSF-Chimera64-batch/share/Ilabel/gui.py", >>>>> line 13, in <module> >>>>> from chimera import tkgui, chimage, CLOSE_SESSION >>>>> File >>>>> "/home/gleb/.local/UCSF-Chimera64-batch/share/chimera/tkgui.py", >>>>> line 74, in <module> >>>>> import Togl >>>>> ImportError: No module named Togl >>>>> >>>>> Error while processing >>>>> >>>>> >>>>> /home/gleb/Desktop/Scripts/MegaAnalysis/temp/script_AT1_dry_apo.1rep.step7_1.pdb.cmd: >>>>> ImportError: No module named Togl >>>>> >>>>> File >>>>> "/home/gleb/.local/UCSF-Chimera64-batch/share/chimera/tkgui.py", >>>>> line 74, in <module> >>>>> import Togl >>>>> >>>>> See reply log for Python traceback. >>>>> >>>>> I have found that it is due to some conflict in PYTHONPATH from my >>>>> bash since I am running Chimera directly from BASH. The people also >>>>> wrote that Its related to setting transparency- which was not a case >>>>> there - I did not set in my script. Anyway how to fix it? >>>>> >>>>> Thanks you! >>>>> >>>>> James >>>>> >>>>> 2017-08-30 22:54 GMT+02:00 Eric Pettersen <pett(a)cgl.ucsf.edu>: >>>>>> >>>>>> Hi James, >>>>>> First, if you want to save images without showing the Chimera GUI then >>>>>> you >>>>>> have to use the “headless” version of Chimera, available on the >>>>>> download >>>>>> page. To do the other things you want, just put the equivalent >>>>>> commands >>>>>> in >>>>>> a file that ends in “.cmd” and just add that file to your invocation of >>>>>> Chimera, e.g.: >>>>>> >>>>>> chimera $pdb script.cmd >>>>>> >>>>>> The easiest way to handle the image file name is probably to used a >>>>>> fixed >>>>>> name in the Chimera “copy” command, and then in your bash script move >>>>>> that >>>>>> file to the final name you want. Also, "preset” is the command to >>>>>> apply >>>>>> presets — “help preset” in Chimera for more info. >>>>>> >>>>>> Hope this helps. >>>>>> >>>>>> —Eric >>>>>> >>>>>> >>>>>> Eric Pettersen >>>>>> UCSF Computer Graphics Lab >>>>>> >>>>>> >>>>>> On Aug 30, 2017, at 8:40 AM, James Starlight <jmsstarlight(a)gmail.com> >>>>>> wrote: >>>>>> >>>>>> Dear Chimera Users! >>>>>> >>>>>> My simple bash script loops the folder with the pdbs and open it in >>>>>> Chimera >>>>>> >>>>>> for pdb in ${output}/xtc_proc/*.pdb ; do >>>>>> name=$(basename "$pdb") >>>>>> echo "I am sending ${name} to Chimera!" >>>>>> chimera $pdb >>>>>> done >>>>>> >>>>>> My question - can I use with chimera some batch file which will >>>>>> apply the following commands to each of the loaded pdbs without >>>>>> opening of Chimera GUI: >>>>>> >>>>>> 1- Apply "publications-2" preset >>>>>> >>>>>> 2 - rangecolor bfactor key 2 blue 30 red 50 yellow # color pdb >>>>>> according to b-factor provided in the pdb file >>>>>> >>>>>> 3- make a screen-shot of the colored cartoon figure in the selected >>>>>> output folder. >>>>>> >>>>>> >>>>>> I thanks so much for the example of batch file and the syntax accepted >>>>>> by chimera from the linux shell. >>>>>> >>>>>> James >>>>>> _______________________________________________ >>>>>> Chimera-users mailing list: Chimera-users(a)cgl.ucsf.edu >>>>>> Manage subscription: >>>>>> http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users >>>>>> >>>>>> >>>>> _______________________________________________ >>>>> Chimera-users mailing list: Chimera-users(a)cgl.ucsf.edu >>>>> Manage subscription: >>>>> http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users >>>>> >>

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longbond command documentation?
by Oliver Clarke 06 Sep '17

06 Sep '17

Hi, I want to use the longbond command to clean up display of a PDB file which has some ugly bits – missing TER cards etc - and which hence has unphysical bonds displayed. According to the manual `longbond` should be the command to use, but it doesn’t seem to work – it just displays and undisplays pseudobonds. If I attempt to use arguments as described in the docs, I get a message saying that longbond no longer takes arguments. Is there an updated description of this command? Or another command that does what longbond used to do? Cheers Oli

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