- ChimeraX-users - RBVI Mailing Lists

open local pdb files "containing no atoms and bonds"
by Fekete Attila 15 Feb '18

15 Feb '18

Dear Colleagues, I have tried to open several local *.pdb files, but in each case I got the error: "Opened PDB data containing 0 atoms, 0 bonds and 0 coordinate sets", and a series of warnings (for each lines of the files) and ChimeraX doesn't show the structure. I have also tried different versions of ChimeraX (0.1/0.5 and even alpha releases, recently I'm using 0.5 under Ubuntu 16.04). I can open any online files (*pdb,*mmCIF) from the RCSB database, however if I download the same file, I got the above mentioned error message, so I have absolutely no clue to resolve the problem because I suppose this isn't related to pdb format issues but a bug can be somewhere in the softwere. I am really impressed by the visualization capabilities of ChimeraX so please help me if you can. Yours, Attila

3 9

ChimeraX surface coloring
by Nadishka Jayawardena 14 Feb '18

14 Feb '18

Hi there, I recently installed ChimeraX and been trying to figure out a way to colour a cryo-EM map by radius- however, I couldn't find a way to get this done? Is this feature not implemented on ChimeraX as yet? Is there a way to colour the map by using a python script? Many thanks Nadishka P.S. Must say that this new version is a huge improvement!

2 1

spin movie error
by Andrey Feklistov 05 Feb '18

05 Feb '18

Dear chimera X developers, upon trying to record a spin movie with a corresponding button I get an error: dyld: Symbol not found: _clock_gettime,Referenced from: /Volumes/ChimeraXInstaller 2/ChimeraX.app/Contents/bin/ffmpeg,Expected in: /usr/lib/libSystem.B.dylib Typing the command manually results in the same error. I remember that the feature used to work when I first tested ChimeraX last year. Thanks for any advice.. Andrey

2 1

2dimage?
by Emmott, Ed 31 Jan '18

31 Jan '18

Hi, Is there (or likely to be in future) a 2d image feature, allowing you to overlay 2d graphics (.tif, .png) in the same way as the 2dlabel command (e.g. Xpos Ypos )? My use case is wanting to add additional 2d graphics (e.g. color bar or graphs) over a pdb structure prior to rendering images/generating movies. Whilst I can get ChimeraX to open the images easily e.g. (open "...test.tif"), they are acquiring edges (white background image on white background scene -> grey borders) I assume as a result of being interpreted as a 3d object. Otherwise loving the software! Thanks a lot, Ed Using ChimeraX build v0.5 (2018-01-12) Dr Edward Emmott Research Associate Slavov Lab Northeastern University 332 Mugar, 360 Huntington Ave. Boston, MA.

2 1

Ignored bad PDB record found
by Maurício Menegatti Rigo 31 Jan '18

31 Jan '18

I don't understand, my .pdb file seems perfectly fine, but I keep getting this error: *Ignored bad PDB record found on line 1ATOM 1 N ASN A 1 61.433 13.168 52.787 1.00 69.56 N Ignored bad PDB record found on line 2ATOM 2 CA ASN A 1 62.543 13.695 51.962 1.00 69.56 C Ignored bad PDB record found on line 3ATOM 3 C ASN A 1 61.990 14.337 50.735 1.00 69.56 C Ignored bad PDB record found on line 4ATOM 4 O ASN A 1 60.999 13.878 50.167 1.00 69.56 O Ignored bad PDB record found on line 5ATOM 5 CB ASN A 1 63.479 12.547 51.555 1.00 69.56 C2610 messages similar to the above omitted* I can open it in Chimera, PyMol, VMD, among others. But in ChimeraX is always the same error. I'm working on Linux (Ubuntu 14.04) with ChimeraX version 0.5 (2018-01-24). Any help? Thanks in advance, Mauricio M Rigo, Ph.D

3 8

Consultation about software use
by dejesusm＠sloankettering.edu 30 Jan '18

30 Jan '18

Good day. I am Miguel de Jesus, a graduate student in the lab of Morgan Huse at the Sloan-Kettering Institute, NY. We are embarking on a new project that may require some sophisticated analysis of morphology from time-series imaging data. I have encountered a recent paper (Fritz-Laylin et al., eLife 2017) that used UCSF ChimeraX to analyze lattice light sheet data on neutrophils. I suspect my project may benefit from the same tools, but I have no experience with computational or image analysis as of yet. Would it be possible for me to consult with someone from the dev team, perhaps over Skype or e-mail, to ask rather rudimentary questions about how I might be able to conduct analysis for the planned work? Thanks so much. Miguel DJ Miguel Francisco M. de Jesus Graduate Student (Huse Lab) Memorial Sloan Kettering Cancer Center Zuckerman Research Center, 417 E 68th Street, New York City, NY 10065, USA

3 3

Cannot load Chimera X session
by Donghyun Park 29 Jan '18

29 Jan '18

Dear Chimera X users, I have trouble opening saved session in Chimera X. It loads my session for few seconds that shows following error messages: KeyError: 12 File "/private/var/folders/z_/sd6vflps0hs03gjrv5gt73yw0000gr/T/AppTranslocation/A86A6FCF-9B92-4C93-98CE-D4ADBB890140/d/ChimeraX.app/Contents/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/chimerax/core/tools.py", line 333, in remove del self._tool_instances[tid] See log for Python traceback. Can anyone please help me? Thanks, Raphael Park

2 1

Question regarding making movies & changing voxel size
by Donghyun Park 18 Jan '18

18 Jan '18

Dear Chimera X community, Currently, I am in a transition from the old Chimera to Chimera X. So far, I am very much enjoying Chimera X. 1) I was wondering if there's Chimera X equivalent of 'savepos' and 'movie recorder' . 2) Also, how can I change the voxel size in Chimera X? I tried to find answers in the User Guide but I couldn't find the right answer. I hope I can get some advice here. Thank you! Best, Raphael Park

2 3

making color zone transparenct
by Yashar Sadian 05 Jan '18

05 Jan '18

Dear all Is there a command or a way to make a zone colored EM map transparent? -- Best, Yashar Sadian Christoph Mueller's group Structural and computational Biology Unit European Molecular Biology Laboratory (EMBL) Meyerhofstrasse 1 69117 Heidelberg, Germany Phone: 0049-6221-387-8496 Email: sadian(a)embl.de

3 3

invert selection in ChimeraX
by Yashar Sadian 26 Dec '17

26 Dec '17

Hi is there a command to invert selection like in chimera? or simply hide whatever that is not selected -- Best, Yashar Sadian Christoph Mueller's group Structural and computational Biology Unit European Molecular Biology Laboratory (EMBL) Meyerhofstrasse 1 69117 Heidelberg, Germany Phone: 0049-6221-387-8496 Email: sadian(a)embl.de

2 1