June 2026 - ChimeraX-users - RBVI Mailing Lists

UniProt ID detection and display from mmCIF files
by Samuel Nitz 10 Jun '26

10 Jun '26

Hello, I’m adding metadata to a large set of mmCIF files coming from a large-scale AlphaFold prediction effort. The goal is to have descriptions for each polypeptide chain visible when opening the file in ChimeraX. Adding descriptions is easy via the _entity.pdbx_description parameter. However, I can’t figure out how to add UniProt IDs so they show up in their own column, which is usually the case for files I’ve downloaded from the AlphaFold database or PDB. I’ve tried editing struct_ref and struct_ref_seq , but ChimeraX still won’t display the UniProt IDs. How do I do this? Version information: mmCIF dictionary: mmcif_ma.dic 1.4.5 ChimeraX: version 1.10 (2025-06-26) Thanks for your help! Sam Nitz PhD candidate, Rock lab Rockefeller University

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Changing Chain IDs in ChimeraX
by Parvate, Amar D 10 Jun '26

10 Jun '26

Hi My name is Amar and I am working on the structure of a phage tail complex. I have multiple dodecameric assemblies within the tail complex. Is there a way to change/name chain IDs from say P1 to P12 in chimeraX so that they are all read and rendered? Can I make ChimeraX read chains beyond P9 when I have numbered them from say P1 to P12? Coot reads it fine but ChimeraX gets confused after P9 (image attached). I cannot select chain "P12" or any residue/sidechain in it [cid:image001.png@01DCF8BD.9D7AF260] Best Amar

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Chimerax questions
by McCune, Christopher 09 Jun '26

09 Jun '26

Hi, I have a few questions regarding the software. Is it supported by Windows 11 enterprise? Is it possible to install it in Program Files or program files x86? Does the installation do anything with the app data folder? Are all the executables and dependencies up to data with their code signing? Are there silent install switches available? Are there silent uninstall switches available? Thank you, Chris McCune Desktop Engineer Department of Medicine, School of Medicine University of Maryland, Baltimore 100 N. Greene St. RM 201 http://www.medschool.umaryland.edu/medicine/IS/

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Create pbonds or distances in different groups
by Kai Cai 09 Jun '26

09 Jun '26

Hi ChimeraX Community, When I create pseudobonds or distance measurements between atoms in ChimeraX, all of the pseudobonds/distances are grouped together. Is there a way to organize them into separate groups or subgroups so that I can modify their properties (e.g., color, radius, labels) independently? Thanks for your help. Best, Kai ________________________________ UT Southwestern Medical Center The future of medicine, today.

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good day, for information.thanks
by PIERALISI CLAUDIA 02 Jun '26

02 Jun '26

Hi,my name is claudia pieralisi,I' m a student in specialistic course of degree in molecular and applicated biology at politecnic of marche university Italy, From a lot of time I am trying to put the Chimera X download in my personal computer Chrome Os -linux it is an old computer but very right and I use it with a lot of happiness. But I cannot to do it because the files are not supportated . Can you tell me what is the file of chimera is right? The link. Thanks see you soon Claudia Pieralisi

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ChimeraX Will Not Open After Installation on My HP Laptop
by PRIYANSHI . 02 Jun '26

02 Jun '26

Dear UCSF ChimeraX Support Team, I am having trouble running ChimeraX on my laptop. I successfully downloaded and installed the software, but it does not open when I try to launch it. When I click the ChimeraX icon, I only see the loading/buffering cursor for a few seconds above the desktop icon, and then nothing happens. The program never opens, and no error message is displayed. My laptop specifications are: - HP Laptop - Processor: AMD Ryzen 7 5700U with Radeon Graphics, 1.80 GHz - Installed RAM: 16.0 GB (15.3 GB usable) - Graphics: AMD Radeon(TM) Graphics (496 MB) - Storage: 159 GB used out of 477 GB - System Type: 64-bit Operating System, x64-based Processor - Operating System: Windows (64-bit) I have already tried multiple troubleshooting methods suggested by ChatGPT and Google Gemini, including reinstalling the software and other recommended fixes, but ChimeraX still does not open. Could you please advise me on: 1. Whether my system meets the requirements for ChimeraX? 2. Whether there are known compatibility issues with AMD Ryzen 7 5700U or AMD Radeon Graphics? 3. Any additional troubleshooting steps I can try? 4. Whether there is an alternative version or installation method that may work better on my system? I would greatly appreciate your guidance. Thank you for your time and assistance. Kind regards, Priyanshi

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