January 2024 - ChimeraX-users - RBVI Mailing Lists

movie record / encode
by Enrico Martinez 05 Mar '24

05 Mar '24

Dear ChimeraX users! I noticed that there is some difference in the quality of the molecular movies produced in Ubuntu or MacOSX environments. Are there some tricks to improve the quality of the animation produced on ubuntu ? Here are the commands which produced the best results: movie record size 1920,1080 supersample 4 movie encode format h264 quality higher bitrate 25000 how could I modify / add something more with the aim to obtain the best molecular animations ?? Yours sincerely Enrico

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Feature request; sort by last time file was modified in save window
by m.c.feasey2＠newcastle.ac.uk 12 Feb '24

12 Feb '24

The content of this message was lost. It was probably cross-posted to multiple lists and previously handled on another list.

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Setting transparency for multi-frame PDB
by Enrico Martinez 09 Feb '24

09 Feb '24

Dear ChimeraX users! I am working on visualization of protein-ligand complex from MD trajectory loaded as multiframe pdb via open coordset true Here is my script: #coloring ligand options color ligand & C gold style ligand sphere #transparency surface protein color byattribute kdh protein target rs palette sandybrown:coral:orangered novalue gray transparency protein 5 surfaces select zone ligand 4 protein transparency sel 55 surface The problem is only in the transparency which could be set only on the first frame but then disappears when I browse movie. How could I modify my scipr to keep the transparency on all frames ? Many thanks in advance ! Enrico

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Using GPU in chimerax
by Sharif, Omar 01 Feb '24

01 Feb '24

Hello, I am using Chimerax with a tool called DeepSSETracer, a model that performs segmentation on the secondary structure of 3d cryo density maps. I need GPUs and CUDA enabled to test the tool. When I run the model, I have a message in the log that says Cuda is not available although I am running on a machine where relevant Nvidia GPU drivers and Cuda are already installed and working properly. I am attaching the screenshot [cid:d821ceae-9b2c-4a88-a7ba-c45b2935bee2] Is there any way to enable GPU usage within the ChimeraX? Is there any way to check if ChimeraX is using GPU and CUDA? I will be waiting for your reply. Thanks in advance, Omar Omar Sharif Ph.D. student Department of Computer Science Old Dominion University Email: osharif(a)cs.odu.edu https://odu.zoom.us/my/omarsharif786

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Center atom
by Cygler, Miroslaw 01 Feb '24

01 Feb '24

Hi, I just started using ChimeraX and am confronted with how to do a simple task, namely, to placer a specific atom at the centre of the screen. What is the replacement for the command “centre” in Chimera? Thanks, Mirek

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opening the session made with the new ChimeraX version using old ChimeraX
by Dmitry Semchonok 31 Jan '24

31 Jan '24

Dear colleagues, I made a session (cxs) in the newest ChimeraX. It contains the models only. How can I open it in the older ChimeraX version? Maybe I can save the session in a different format to be able to open with the older version? Unfortunately, I cannot update the older version on one PC. Thank you. Kind regards, Dmitry

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transparency around the model only
by Dmitry Semchonok 31 Jan '24

31 Jan '24

Dear colleagues, I have a cryo-EM 3D map and model. A model is fitted for only part of my cryo-EM map. Is there a command to make the map transparent only where the model is fitted in? Thank you. Kind regards, Dmitry

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Antivirus software warns about "Trojan.Win32.Diple" in 1.7.1 ChimeraX executable
by thomas.coudrat＠gmail.com 31 Jan '24

31 Jan '24

Hi ChimeraX list, When trying to install ChimeraX 1.7.1 Windows (md5: c79878497cfa2c1e0944e732ea4adc21) I get a warning from my antivirus software. See the description here: https://www.virustotal.com/gui/file/cc9b4af4e1a04fc647d082e04f60c111c7aeed1… In case the link doesn't work, it says that "Ikarus" is warning about "Trojan.Win32.Diple", while passing the checks with several other antivirus software. (I've seen a similar thread in the archive but it was from last year, therefore this one might be different) Kind regards, Thomas

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rrdistmaps in chimerax?
by Francisco Murphy Pérez 30 Jan '24

30 Jan '24

I just learned about this program called RRDistMaps https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4410660/ in UCSF chimera. Is there something similar in chimeraX? Thanks

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Modeller using more than 1 template in Chimera Modeller
by Vladimir Saudek 29 Jan '24

29 Jan '24

Hello, Is it possible to model 3D structure within Chimera using several complementary pdb templates at once? This is possible in the stand alone Modeller but I was unable to find a tutorial/manual instruction how to do it in Chimera. Thank you Vladimir

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