- ChimeraX-users - RBVI Mailing Lists

Structure Prediction on ChimeraX
by Chang Jang 04 Oct '21

04 Oct '21

Hi ChimeraX users, I am trying to find Structure Prediction -> AlphaFold but there seems no such tool. Would you please guide me on how to add the "Structure Prediction" tool on ChimeraX? Thank you. Best regards, Chang Woon Jang

2 1

can isolde work with ChimeraX 1.3 developer versions?
by Sindelar, Charles 04 Oct '21

04 Oct '21

Hi all, any chance I can persuade ChimeraX v1.3 (i.e. nightly downloads) to use the current version of Isolde? I would love to use some of the newest features of ChimX together with Isolde, but the toolshed does not allow this (says only ChimX 1.2 is allowed). Are they really incompatible? Can I perhaps "trick" the toolshed somehow? Thanks for all your work to make these fabulous tools. By the way, Tom, Eric, Elaine and team, I *love* the new tool-switching shortcuts, i.e. shift-esc and control-tab. They make my life so much easier and this is a primary motivation for my request (but other new features in 1.3 also). Cheers! Chuck --------------------- Charles V. Sindelar, Ph.D. Dept. of Molecular Biophysics and Biochemistry Yale University Bass 335 New Haven, CT 06520-8114 Lab (203) 432-3095 Fax (203) 432-5175 http://medicine.yale.edu/mbb/faculty/charles_sindelar.profile

3 2

crossfade command not working from a command file
by Guillaume Gaullier 01 Oct '21

01 Oct '21

Hello, I am using ChimeraX version 1.2.5 (2021-05-24) on macOS 10.15.7. When trying to generate a simple movie with the attached command file, I get the attached wrong result in which the crossfade command seems to fail (instead of a smooth transition, I only get a flashing black screen for a few frames). A similar problem happens with the same version of ChimeraX on Rocky Linux 8.4. Instead of loading the command file from a fresh session (with 'open command-file.cxc'), I tried to prepare my models first, and then sent the commands generating the movie all at once (separated by semi-colons). When I did it this way, I got the correct result (also attached). Is there anything I am doing wrong, or is this a bug? I am pretty sure the command file version worked correctly in a previous version of ChimeraX, because I have done this before. Unfortunately, I don’t remember which version it was (but probably 1.1, since it was just last year). I would appreciate any help with this. Thank you in advance, Guillaume När du har kontakt med oss på Uppsala universitet med e-post så innebär det att vi behandlar dina personuppgifter. För att läsa mer om hur vi gör det kan du läsa här: http://www.uu.se/om-uu/dataskydd-personuppgifter/ E-mailing Uppsala University means that we will process your personal data. For more information on how this is performed, please read here: http://www.uu.se/en/about-uu/data-protection-policy

3 6

Tiling images are stepped
by Pranav Shah 30 Sep '21

30 Sep '21

Hi, I want to create an image of multiple volumes that are tiled horizontally. However, when I run the command "tile columns 6" the volumes get arranged in a step-like manner (attached image). I do not see this happen in chimera so I am wondering if this expected behaviour in ChimeraX? I am on UCSF ChimeraX version: 1.2.5 (2021-05-24) on the M1 MacBookPro, MacOS 11.6. Best, Pranav -- Pranav Shah Postdoctoral Research Fellow. Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK

3 3

Syncing up the movement of "plane" volumes.
by Mayer, Megan 30 Sep '21

30 Sep '21

Hi ChimeraX community. I have a reconstructed tomogram which has 92 ‘Z’ slices, and a segmentation volume that has ‘374’ slices. They are both displayed as “Plane” in the volume viewer (image attached). I would like to record a movie where they are showing the same features simultaneously. I have used the command: “volume #5 planes z,0,92; volume #2 planes z,0,374 ; wait 120 ; “ However, the volumes do not move at the same time: volume 5 completes before volume 2 begins. Is there a way around this, so that I can play both volumes at the same time? Thank you for any tips! Megan

2 2

adding new trajectory format
by Radosław Giziński 30 Sep '21

30 Sep '21

Hi, Is there a way I can add custom, multi-frame trajectory format to ChimeraX so I can view multi frame trajectories? Is there some manual that could guide me through the process like this?: https://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/movie/movie.html (scroll to the bottom) Best regards, Radosław Giziński

3 2

movie encode bug on Rocky Linux 8.4
by Guillaume Gaullier 30 Sep '21

30 Sep '21

Hello, This time I am reporting what looks almost certainly like a bug. Using ChimeraX version 1.2.5 on Rocky Linux 8.4 (installed from the RHEL/CentOS 8 RPM package), I get the following error in the Log when trying to use the movie encode command (I attached a copy of the full error message in the Log): /usr/libexec/UCSF-ChimeraX/bin/ffmpeg: error while loading shared libraries: libbz2.so.1.0: cannot open shared object file: No such file or directory Turns out I definitely have libbz2 on my system, but not under the filename ChimeraX (or ffmpeg bundled with ChimeraX) is looking for: $ ls -l /usr/lib64/ | grep libbz2 lrwxrwxrwx. 1 root root 11 Apr 7 03:44 libbz2.so -> libbz2.so.1 lrwxrwxrwx. 1 root root 15 Apr 7 03:44 libbz2.so.1 -> libbz2.so.1.0.6 -rwxr-xr-x. 1 root root 73008 Apr 7 03:44 libbz2.so.1.0.6 If I create a symlink to libbz2.so.1.0.6 and name it libbz2.so.1.0, my movie encode command finishes fine and produces a movie file. So it was easy to work around this problem, but obviously it would be a lot better if it worked out of the box and the user did not have to mess with system files as root. Thank you in advance, Guillaume N?r du har kontakt med oss p? Uppsala universitet med e-post s? inneb?r det att vi behandlar dina personuppgifter. F?r att l?sa mer om hur vi g?r det kan du l?sa h?r: http://www.uu.se/om-uu/dataskydd-personuppgifter/ E-mailing Uppsala University means that we will process your personal data. For more information on how this is performed, please read here: http://www.uu.se/en/about-uu/data-protection-policy

3 3

Trackpad scaling causes unintended rotation
by Oliver Clarke 29 Sep '21

29 Sep '21

Hi, In recent versions of ChimeraX (I don't think it always did this but can't be 100% sure), when one uses pinch-to-zoom on the trackpad to scale the view, this also changes orientation, causing quite a large and unintended rotation which can be a bit disconcerting. Comparing directly with Chimera using the same model, this does not happen in Chimera. Is there some difference in how the Chimera vs X are interpreting competing trackpad gestures, and could this be adjusted in ChimeraX? Because two fingers can be used both to scale and rotate... Chimera seems to be able to figure out which the user is intending, while ChimeraX presently applies both at the same time. Cheers Oli

3 6

Possible to measure the shortest distance between two models?
by Vorländer,Matthias Kopano 28 Sep '21

28 Sep '21

Dear all, I am interested in measuring the shortest distance between two models (PDBs) without a priori knowledge of which atoms will be the closest ones. I am planning to do this for a large number of model pairs, therefore it would be great if this would be scriptable. Is this possible using ChimeraX? Thanks a lot in advance, Best, Matthias

3 6

Have a map move with its model
by Bullitt, Esther 28 Sep '21

28 Sep '21

Hi, I renamed my map and model to be #9.1 and #9.2, thinking this would make them move together. However, when I used matchmaker to match the model to align it to another model, only the model moved and the map did not. To start with, I used fitmap #9.1 inMap #9.2, but now the model is elsewhere. If I go back and do fitmap again, it moves the wrong thing (I want to put the map where the model is now, not vice versa). Is there something I am missing, or is there a different way to do this? Thanks very much. Sincerely, Esther

2 1