ChimeraX (bsky: www.cgl.ucsf.edu)
@UCSFChimeraX
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UCSF ChimeraX - software for visualizing biomolecules
San Francisco
Joined May 2020
Link to our download page: Changelog:
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We now have an account on the competing microblogging platform that cannot be named.
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RT @labriataphd: Speech recognition + LLM + AR + MD = Molecular graphics and modeling in the Holodeck (paraphrasing @UCSFChimeraX 's Tom G…
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Candidate builds for the 1.9 ChimeraX release are availabe now on our website:
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@AliceRobijns Not at this time, we apologize. We don't distribute ChimeraX outside of our website so that we can present users with the license agreement before they download the program, and we use that interaction to track download statistics.
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Downtime for server maintenance: The ChimeraX website, Toolshed, web services (Blast Protein, Modeller, ...) and mailing list will be unavailable starting Monday, October 14, 10 AM PDT and continuing for several days, potentially through October 20th.
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@GntlmnScientist @klausenhauser Email the script you wrote to chimera-programmers@cgl.ucsf.edu and we'll see about putting it up on ChimeraX Recipes:
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RT @fenguita: Morphing transition showing the open-close transition of the Campylobacter jejuni ATP-driven lipid-linked oligosaccharide f…
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In ChimeraX v1.9 daily builds 30/07/2024 or newer, raycasting can be used to render medical images and other volumes. Use 'volume projectionMode rays' or the new button on the medical image toolbar.
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The ChimeraX 1.8 release is available. Varying ribbon thickness ("worms") shows B-factor across human spliceosome structure PDB 8c6j. See what else is new in the ChimeraX change log.
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Downtime: The ChimeraX web site, web services (Blast Protein, Modeller tools, sequence realignment), mailing lists, and bug reporting will be down 9 AM Pacific time Monday June 17 to 5 PM Tuesday June 18 for building electrical upgrades.
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CrAI, a tool using machine learning to automatically find antibodies in cryo-EM densities, is now available in ChimeraX (menu Tools / More Tools)! CrAI runs in seconds on a CPU, at resolutions up to 10A. Learn more at
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Worms! Available in ChimeraX v1.8 daily builds 3/12/24 and newer. See for details and the script to make this image.
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@taha_shahid @CrollTristan @philipturnerar @openmm_toolkit We expect to make a ChimeraX 1.7.1 release in January 2024 and I have added the Metal libraries (OpenMM platform HIP) which are about 20% faster than OpenCL on a Mac M2. In ChimeraX 1.7 use the OpenMM OpenCL platform.
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@taha_shahid @CrollTristan @philipturnerar @openmm_toolkit ChimeraX 1.7 includes the standard Conda Mac ARM OpenMM 8.0 (exact version openmm-8.0.0-mac-py311h68ae2cc_1_apple.tar.bz2 from . I don't see any mention of a Metal OpenMM platform. I thought OpenCL is the fasted Mac option.
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Downtime. The ChimeraX web site and services are still down due to UCSF Wynton cluster server maintenance. We expect them to be back online before November 3, 11:59 pm Pacific time. Sorry for the long outage.
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Downtime. The computers running the ChimeraX web site and web services (BLAST, Modeller...) and Toolshed went down yesterday, expected back Oct 31 11:59 pm Pacific daylight time. Status here
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Downtime. Due to server maintenance the ChimeraX website, associated web services (BLAST, Modeller, ...), and Toolshed will be unavailable Monday Oct 30, 2023 at 8 am – Oct 31 11:59 pm Pacific daylight time.
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@Q_M_Smith The soft and full lighting modes cast shadows from 64 directions. On a fast GPU that is usually fast enough. But on say a laptop with Intel graphics and a 1 million atom structure it can make rotating the model choppy.
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