- ChimeraX-users - RBVI Mailing Lists

transition dipole moments
by gennaro.pescitelli＠unipi.it 28 Nov '23

28 Nov '23

Dear developers, first of all, thnak you for your great software, I just started using it. My question: is there a way to plot transition moments (electric and magnetic), as calculated e.g. by TD-DFT calculations in ORCA or Gaussian? If not directly from a log/out file, is tehre a way to manually add a vector arrow? Thanks Rino Pescitelli

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Inquiry Regarding Feasibility of Implementing Protein Operations in Python
by g0423019 g0423019 28 Nov '23

28 Nov '23

Sorry. The earlier email by ms04000106(a)gmail.com was not sent using a university email address. It has been resent using the university email address. Dear UCSF ChimeraX, I hope this email finds you well. My name is Mayu Shibuya, and I am a student at Iwate University, currently affiliated with the wet biology laboratory. I am reaching out to seek guidance on the feasibility of utilizing the software for a specific task. Specifically, I am interested in performing addh and addcharge operations and automating these processes using a Python script. However, I do not know whether the addh and addcharge operations can be executed in Python. Could you kindly provide guidance on the possibility of achieving this with the software? If it is indeed feasible, I would greatly appreciate any instructions or methods you recommend for implementing these operations in a Python script. Thank you for taking the time to consider my inquiry. I greatly appreciate your assistance and look forward to hearing from you soon. Best regards, Mayu Shibuya Iwate University g0423019(a)iwate-u.ac.jp

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Inquiry Regarding Feasibility of Implementing Protein Operations in Python
by 澁谷まゆ 28 Nov '23

28 Nov '23

Dear UCSF ChimeraX, I hope this email finds you well. My name is Mayu Shibuya, and I am a student at Iwate University, currently affiliated with the wet biology laboratory. I am reaching out to seek guidance on the feasibility of utilizing the software for a specific task. Specifically, I am interested in performing addh and addcharge operations and automating these processes using a Python script. However, I do not know whether the addh and addcharge operations can be executed in Python. Could you kindly provide guidance on the possibility of achieving this with the software? If it is indeed feasible, I would greatly appreciate any instructions or methods you recommend for implementing these operations in a Python script. Thank you for taking the time to consider my inquiry. I greatly appreciate your assistance and look forward to hearing from you soon. Best regards, Mayu Shibuya Iwate University ms04000106(a)gmail.com

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hide dust
by Andrea Smith 28 Nov '23

28 Nov '23

Hi, I have cartoon and map visible for a part of my molecule (one protomer from a tetramer). When I click on hide dust, the dust is hidden but at the same time the map appears for the rest of the tetramer. Is there a way to hide dust around the visible part of the map while keeping a part of the map hidden? Thanks, Andrea

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(no subject)
by Murphy, Kenneth 26 Nov '23

26 Nov '23

Hi, Would there be a way to save convservation scores from a large multiple sequence alignment into a file that could be re-loaded later instead of having to reload the actual alignment file? In looking at WDFY4, the alignment of the 3124 residue protein from 523 different species, the alignment fasta file takes around 10 minutes to load. After calculating the scores, the program shows the alignment and then the showing the convervations of residues in the protein is my goal of analysis. But it takes the same 10 minutes every time I open the session. I haven't found a way to save the scores themselves and load that in directly. Is there a way to do that? thanks it's a great program. ken murphy ________________________________ The materials in this message are private and may contain Protected Healthcare Information or other information of a sensitive nature. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail.

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Reading .xyz vs. Orca .out file
by Michael Patzschke 23 Nov '23

23 Nov '23

Dear colleagues, Recently the following problem has appeared: When I open an orca output file and chose the ball and stick option for displaying molecules, the radii of the balls are all wrong. This problem does not show up when I open the corresponding .xyz file. I try to attach an example to illustrate the problem. I would appreciate any help in this matter. Kind regards, Michael Patzschke __________________ Dr. Michael Patzschke Institute of Resource Ecology Chemistry of the f-elements Theoretical Chemistry Helmholtz-Zentrum Dresden - Rossendorf e. V. Telefon: +49 (0351) 260 2989 E-Mail: m.patzschke(a)hzdr.de <mailto:p.kaden@hzdr.de> Web: http://www.hzdr.de <http://www.hzdr.de/> Addresse: Bautzner Landstrasse 400 | 01328 Dresden Vorstand: Prof.Dr. Dr. Sebastian M. Schmidt, Dr. Diana Stiller Vereinsregister: VR 1693 beim Amtsgericht Dresden

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Dialog box after dockprep command in 1.7rc202311210000
by r.m.newlon＠gmail.com 22 Nov '23

22 Nov '23

Hello all, I am on an Apple M1 and have just updated to ChimeraX 1.7rc202311210000. I am just starting to learn how to use ChimeraX from the command line (Terminal). My code that ran from Terminal on ChimeraX 1.6 doesn't seem to be working now with 1.7. Specifically, it seems that the dockprep command now ends by automatically popping up a dialog box prompting you to save a Mol2 file. I think this is causing problems when I try to run in nogui mode. I will include the "error message" at the end of this message, in case it is helpful. If this dialog box is the problem, is there a way to suppress it? Thank you! RN ==== Copied from Terminal ==== ... Dock prep finished Unexpected exception, save your work and exit: Traceback (most recent call last): File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/core/nogui.py", line 232, in execute self._cmd.run(text) File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/core/commands/cli.py", line 2908, in run result = ci.function(session, **kw_args) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/dock_prep/cmd.py", line 168, in dock_prep_cmd dock_prep_caller(session, structures, memorization=memorize, nogui=True, **kw) File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/dock_prep/cmd.py", line 144, in dock_prep_caller run_steps(session, state, structures) File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/dock_prep/cmd.py", line 159, in run_steps step_mod.run_for_dock_prep(session, state, run_steps, state['memorization'], state['memorize_name'], File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/dock_prep/prep.py", line 107, in prep callback(session, state, structures) File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/dock_prep/cmd.py", line 159, in run_steps step_mod.run_for_dock_prep(session, state, run_steps, state['memorization'], state['memorize_name'], File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/addh/dock_prep.py", line 56, in run_for_dock_prep callback(session, state, structures) File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/dock_prep/cmd.py", line 159, in run_steps step_mod.run_for_dock_prep(session, state, run_steps, state['memorization'], state['memorize_name'], File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/add_charge/dock_prep.py", line 58, in run_for_dock_prep callback(session, state, structures) File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/dock_prep/cmd.py", line 154, in run_steps callback() File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/dock_prep/prep.py", line 101, in postscript show_save_file_dialog(session, format=session.data_formats.save_format_from_suffix(".mol2").name) File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/save_command/dialog.py", line 138, in show_save_file_dialog _dlg.display(session, **kw) File "/Applications/ChimeraX-1.7-rc2023.11.21.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/chimerax/save_command/dialog.py", line 31, in display parent = session.ui.main_window ^^^^^^^^^^^^^^^^^^^^^^ AttributeError: 'UI' object has no attribute 'main_window'

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ChimeraX-users email frequency
by Siyoung Kim 22 Nov '23

22 Nov '23

Hello, Is there a way to control the frequency of receiving emails from chimerax-users (e.g., once a day, once a week, or once a month)? Thank you. Best, Siyoung

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(no subject)
by Murphy, Kenneth 21 Nov '23

21 Nov '23

Thanks for ChimeraX. I've been loading multiple sequence alignments in fasta format directly into ChimeraX for mapping conservation onto a pdb and it works great. My MSA are directly from clustalo omega and in fasta format not clu formtat. My question is this. My compiled al2co.c as well as the binary I downloaded for al21co.exe doesn't work with input in fasta format. And yet ChimeraX opens and al2co window when I input my alignment. Does ChimeraX use another version of al2co that is configured to open fasta files? thanks for any info. ken murphy ________________________________ The materials in this message are private and may contain Protected Healthcare Information or other information of a sensitive nature. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail.

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Sequence via remotecontrol?
by Boris Steipe 21 Nov '23

21 Nov '23

Hi all - I am using the fantastic remotecontrol REST interface in teaching, and I have hit a surprising snag: is it not possible to return the sequence of a selection through the interface? What I need to do is align fragments of sequence I have obtained from external annotations (RADAR in this case), with the SEQRES derived sequence to match the sequence numbers to each other - generally they are not the same. I think I could write FASTA to a file with "save" and process that, and I think I could capture the output of "info" and parse that through a function, but I am wondering if there is not a way to get the sequence directly as a return value? Thanks! Kind regards, Boris

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VR on/off button
by Steffen Thomas 21 Nov '23

21 Nov '23

Hello I'm currently looking into the interesting possibilities of ChimeraX and VR. As I am in a different room to my PC with my glasses, I access the PC desktop via SteamVR with ChimeraX open and start vr on in the command line. This works quite well with a virtual keyboard from SteamVR. Now I'm missing two things so far, which I probably just haven't found yet (I'm a VR newbie even though I've owned a GearView for some time now, but its capabilities are quite limited). Firstly, a virtual keyboard where I can enter commands in the command line with the blue or yellow cylinders (I have now found the command line in vr) and a button in the toolbar (for example in the Molecule Display area) that switches vr on or off, in the same way for example as show and hide ribbon. Are there any possibilities to realize this via python itself? Or plans to integrate something like this? Many thanks to the great ChimeraX community and all those responsible. Steffen --------------------------------------------------------------------------------------------------------------- Steffen Thomas

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measure rotation showAxis does not create a measurable object
by Alexis Rohou 20 Nov '23

20 Nov '23

Hello again, I have been using "measure rotation" to create several rotation axis objects, with the goal to measure angles between the various axes. Two of my axes are #4 and #5. When I try to measure the angle with "angle #4 #5", I get the error: "Must specify exactly 3 atoms/centroids or two measurable objects (e.g. axes/planes)" I notice also that the axes created by "measure rotation" do not show up in the "Structure Measurement" UI tool, which I guess is related. Would it be possible to please amend the output of the "measure rotation" command so that the axis (and slabs) it outputs are measurable? Cheers, Alexis

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Startup cxc scripts
by Siyoung Kim 20 Nov '23

20 Nov '23

Hello, Would there be a way to run some chimerax scripts at the beginning of every ChimeraX session? In particular, I want three things: 1. Change the color of the background. set bgColor white 2. Change the mode of the mouse. ui mousemode right zoom 3. Open the shell. ui tool show Shell The most relevant documentation I found was: "Python files in the directory *~/chimerax_start* (where *~* is the user's home directory) are imported automatically at startup." I put ChimeraX scripts (not python files) in this folder, but no luck. Thank you. Best, Siyoung

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Tutorial
by Mark Rosenberg 20 Nov '23

20 Nov '23

Do you have a tutorial for ChimeraX generating publication quality surface and mesh maps with a docked model, please? Thanks Dr Mark F Rosenberg

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specify id of output of define command
by Alexis Rohou 17 Nov '23

17 Nov '23

Hello, I've been scripting quite a bit with the define command of late, and I wonder if you might consider adding "id" or "modelId" to the set of general options available for this command, so that we could specify the ID of the object that is created. The current workaround is to use rename, which works but is a bit cumbersome. Given that many other commands allow us to specify ID of output objects, I figure it'd be nice for that pattern to apply here. Cheers, Alexis

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ISOLDE and secondary structure restraints
by Guido Hansen 17 Nov '23

17 Nov '23

Hi all, I just started model building in cryoEM maps and get great results using ISOLDE on AlphaFold2-derived initial models. I have a question which is mainly directed to Tristan I guess: Is is possible to use the command line/script to apply secondary structure restraints in ISOLDE? I would like to restrain the initial secondary structure assignment from Alphafold especially at resolution worse than 3.5 A. At the moment I select each and every residue range assigned to helix, parallel or antiparallel beta-strand one after the other and turn on the corresponding restrains in the ISOLDE GUI. Is there a better way via command line of script? Cheers, Guido -- PD Dr. Guido Hansen Group Leader UNIVERSITÄT ZU LÜBECK INSTITUT FÜR BIOCHEMIE Tel +49 451 3101 3122 Fax +49 451 3101 3104 E-Mail hansen(a)biochem.uni-luebeck.de www.biochem.uni-luebeck.de [1] Ratzeburger Allee 160 23562 Lübeck Links: ------ [1] http://www.biochem.uni-luebeck.de

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Feature request: replace residues in model with residues from other model
by Vorländer,Matthias Kopano 16 Nov '23

16 Nov '23

Dear ChimeraX team, Thanks a lot for developing the amazing tool that is ChimeraX! I use it extensively for model building, and would like to request a functionality to replace a residue selection in one model from residues in another model (similar to what is possible in coot via the replace fragment functionality). I am aware that this currently possible by a combination of delete, combine, and changechains, but it would be great if this could be shortcutted. Many thanks in advance, Matthias

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plane-spec
by Alexis Rohou 16 Nov '23

16 Nov '23

Hello, I'm playing around with the define axis command, and noticed that in the documentation the link to "plane-spec" does not lead to anything that defines how to specify a plane (help:user/commands/atomspec.html#othermodels). Or at least, I can't see it. The link to "point-spec" does take me to an informative page (help:user/commands/pointspec.html#point). Is the syntax for specifying a plane defined elsewhere? This is with 1.6.1. Cheers, Alexis

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extracting cryoem density
by Dmitry Semchonok 16 Nov '23

16 Nov '23

Dear colleagues, I have a cryo-EM map with different subunits and models for each unit. Is there a way to extract the cryo-EM density for each unit of this map? The units are pretty numerous😊 Thank you. Kind regards, Dmitry

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Calculating solvent accessible surface area for all residues in a protein?
by Altobelli, Chad 15 Nov '23

15 Nov '23

Hi! Is there a way to calculate the solvent accessible surface area (SASA) for every residue in a protein (5FTL) and output the result to a text file? I am trying to rank order residues by their accessibility. I know I can use the command line to calculate one residue at a time but it's laborious. Is there a way to automate the process or a GUI shortcut? Thanks! Chad

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ChimeraX-1.7.dev202311052311-Ramachandran Plots
by Berkay Ekren 15 Nov '23

15 Nov '23

Hello, FIrst of all, I have been using Chimera for 3-4 years, now, and I would like to thank you for your efforts in the development of Chimera and ChimeraX. Recently, I decided to move to ChimeraX, and stay updated by using the bleeding edge daily version. However, I haven't been able to see the Ramachandran Plots option in either the Model Panel or the Tools section of ChimeraX. Is the Ramachandran Plots function removed from the program? Or is it just that I haven't looked at the correct path. This is a Linux installation in Debian 12 (used Ubuntu 22.04 deb package) It would be great if you could direct me to the right direction. Thank you in advance, I am looking forward to hearing from you at your earliest convenience. --Berkay Y. Ekren PhD candidate in Biostatistics and Bioinformatics

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substitute nonstandard residue
by Dmitry Semchonok 15 Nov '23

15 Nov '23

Dear colleagues, I have a short question - how to substitute nonstandard residue with other ChimeraX. My task is to substitute GTP for GSP. The one may use swapaa, right? Could anyone drop the usage for nonstandard residue? Many thanks. Sincerely, Dmitry

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ChimeraX on Apple M1
by Dennis Dannecker 15 Nov '23

15 Nov '23

Hello, I have a question regarding running ChimeraX on Apple's M1 chip. About two years ago (Nov 2, 2021), there was a post by Tom announcing the development of a version of ChimeraX that would run natively on Apple M1 instead of emulting for the Intel processor. Looking in the download section, I see such a native version is now regularly released. However, I am wondering what is the differen between the "macOS M1 or M2" and "macOS". While the former is only for M1 and M2, the latter on is for M1, M2, and Intel Macs, this one is also quite larger in size. If one is working on a macOS M1 (or M2) machine, is it correct to go for the "macOS M1 or M2"? Would that correspond to natively running ChimeraX and provide the best possible performance, or should one always go for the "macOS" release? I am currently updating my hardware, and since I am working quite a bit with ChimeraX, I would like to also inform my decisions based on the available ChimeraX releases. Thank you very much. Best regards Dennis Dennis Dannecker Master Student of Biochemistry Department of Chemistry Faculty of Mathematics and Natural Sciences University of Cologne Albertus-Magnus-Platz 50923 Cologne, Germany

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Not able to see Glycines in stick form
by Firdous Tarique 14 Nov '23

14 Nov '23

Hi everyone In ChimeraX I am not able to show Gly simultaneously as a stick and cartoon. If I am trying to show Gly as a stick then the cartoon line breaks up at this position. And this is for any of the structures if you see. By showing a cartoon and stick together, the sticks for all amino acids show up except for Gly where it remains in the cartoon (you can try that). My aim is to show the thioester bond between Gly and Cys of two chains which I am able to create in Coot through Molecule Link but not able to see in ChimeraX. The moment I am trying to show Gly in stick form at this position it breaks the cartoon. I realised that this is for all the Glycines in the structure. Showing stick and cartoon together shows all amino acids in the stick except Glycine. (However this is not the case in Pymol and Chimera). Do you know any tricks to fix that in ChimeraX? Best Firdous

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(no subject)
by Enrico Martinez 14 Nov '23

14 Nov '23

Dear Chimera-X users! I am trying to record md trajectory loaded in the chimera as

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