- ChimeraX-users - RBVI Mailing Lists

Finding Continuous Residue Stretches
by Daniel Wells 23 Sep '21

23 Sep '21

Dear Chimerax Users: I need to find Continuous Residue Stretches between 15-25 amino acids in length on the surface of these two molecules: https://www.rcsb.org/3d-view/4MYV/1 https://www.rcsb.org/structure/3U82 Could anyone here help me perform that function on Chimerax? Thank you for your time. Sincerely, Dan Wells

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Error on save
by Christophe Leterrier 23 Sep '21

23 Sep '21

HI, When I'm saving a session displaying 3D image stacks as surfaces into a csx file, I get this error: TypeError: object of type 'SurfaceUpdaters' has no len() File "/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/session.py", line 242, in discovery if sm is None and len(value) == 0: However if I switch the displayed stacks as volume, then there is no error on save. This is with the daily build 1.3.dev202109160803 (2021-09-16) on OSX Big Sur (Intel architecture). Thanks, Christophe

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A couple questions about programming in ChimeraX
by William Hofsøy 22 Sep '21

22 Sep '21

Hi, I'm currently working on a plugin that deals with a cmm-file model and have a few questions about how to do certain things. Mainly I would like to be able to modify the model by adding new markers and links to the model. I have managed to figure out how to make new markersets and add them to the session but not how to alter existing ones aka the model that I load from the cmm file. Additionally I am making use of the marker_extra_attributes info since the cmm file im reading has attributes there that I need, but as I read in the documentation these aren't saved in sessions and I wondered if there is a way to do just that. Lastly, I was wondering if it is possible to place any mesh in the scene, for instance a cube. -William

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Re: [chimerax-users] Adding a custom preset question
by Elaine Meng 22 Sep '21

22 Sep '21

Hi Boaz, Just download the file using your standard browser mechanism. When I ctrl-click on the link "kyte-doolittle_hydrophobicity.cxc" in this page: <https://rbvi.ucsf.edu/chimerax/docs/user/preferences.html#startup> ...when viewed in Firefox on Mac, I get a menu that includes "Save link as..." Choosing that brings up a little dialog that I use to save the file (without changing the name, but you can change it if you keep the cxc part) to my desired download location. On other platforms or different browsers it might be slightly different how to get the context menu with the choice to save the file, but should be similar. Or since it is a plain text file, like you said, you can also view contents and then paste them as plain text in a text-editor to create your own cxc file. However it is usually easy just to save the file from the browser as described above. I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco > On Sep 21, 2021, at 10:13 PM, Boaz Shaanan via ChimeraX-users <chimerax-users(a)cgl.ucsf.edu> wrote: > > Hi, > You give a nice example of adding the kyte-doolittle_hydrophobicity.cxc to the custom_presets folder that I created, but where can I find this file? Or, should I paste the content of the file which is opened by pressing the link in the user guide into a file by this name ( I doubt it but nevertheless suggest it as a possibility). > Excuse my naive question, please. > Thanks, > Boaz

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color zone colors by atom type
by vincent Chaptal 21 Sep '21

21 Sep '21

Dear ChimeraX users, I just subscribed so apologies if this has been asked before. When is type the command: color zone #2 near #1/A distance 5 sharpEdges false farColor blue I have the volume #2 in blue with chain A colored by atom type: i.e. with carbons in sand, oxygens in red, nitrogens in blue. I tried to follow the tutorial on youtube, downloading the model and emdb like in the tutorial, and it does work like the tutorial, meaning colored by chain. I am wodering what is going on and how to fix it? I've seen this behavior for my protein, on a PDB refined from Phenix, or from a download from the rcsb. I don't see anything special on the PDB, all the atoms are listed normally. Is it possible to assign a specific color per chain using this command? Thank you for your help. best Vincent -- Vincent Chaptal, PhD Director of GdR APPICOM Drug Resistance and Membrane Proteins Lab MMSB -UMR5086 7 passage du Vercors 69007 LYON FRANCE +33 4 37 65 29 01 http://www.appicom.cnrs.fr http://mmsb.cnrs.fr/en/

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Download Speed
by Gulzar Singh 21 Sep '21

21 Sep '21

Dear Chimera Teach team, The download speed of software is less than 200KB/s (mostly 160 KB/s). I tried both Firefox and wget. We have download limit of 11MB/s My location is Pune, India Please have a look at the issue. Regards, Gulzar Singh

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Turning off silhouettes to specific selection
by Abhilash Padvannil 17 Sep '21

17 Sep '21

Hi Is there a way to turn off the silhouettes on specific selections of a model? Thanks Abhilash.

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Remove older ChimeraX Linux
by Nebojsa Bogdanovic 16 Sep '21

16 Sep '21

Hello, I am trying to reinstall the new ChimeraX on the linux system, however my previous incomplete installations are creating problems. I am not sure how to get rid of them and start anew so I would appreciate your help. I can send more context in our next correspondence. Looking forward to hearing from you. Thank you and best regards. Nebojša Bogdanović, Ph.D Department of Physiology and Biophysics, School of Medicine, Case Western Reserve University

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Interface residue selection - command line option?
by Vorländer,Matthias Kopano 15 Sep '21

15 Sep '21

Dear ChimeraX team, I am trying to selected interface residues using the “interface” tool. While doing this through the context menu of the interface plot works, I am analyzing a larger number of PDBs and am therefore looking for a way to achieve this through the command line (the contacting chains are displayed already in the log window. Essentially I wonder if it is possible to expand this to the contacting residues). Thanks a lot in advcance, Matthias

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how to save .pdb file of predicted fusion protein generated by chimerax and alphafold
by Ruby Pelingon 15 Sep '21

15 Sep '21

Hi, I tried using chimeraX and alphafold to predict my fusion protein. The result seems promising and generated a .pdb file. I would like to enquire how to save the .pdb file. I would like to open the .pdb file using pymol. Thank you. Kind Regards, Ruby Pelingon

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