- ChimeraX-announce - RBVI Mailing Lists

Not opening
by Davis, Jamaine 11 Aug '25

11 Aug '25

Hello, We are attempting to install ChimeraX 1.10.1 on a PC. We can install it, but it will not open. Can you provide assistance? Best, JSD

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ChimeraX version 1.9 has been released
by Elaine Meng 13 Dec '24

13 Dec '24

UCSF ChimeraX version 1.9 has been released! ChimeraX includes user documentation and is free for noncommercial use. Download for Windows, Linux, and MacOS from: https://www.rbvi.ucsf.edu/chimerax/download.html Updates since version 1.8 (June 2024) include: - Foldseek search and analysis of large sets of similar structures - Find Cavities tool and "kvfinder" command to identify pockets and channels in macromolecules - optional residue-level summaries of H-bond and contact calculations - "mutationscores" command for analysis and plotting of results from deep mutational scanning - "surface hidefarblobs" command for colocalization analysis of light microscopy channels - raycasting option for medical images or other maps displayed as transparent volumes - selection can be expanded to all residues associated with the same column(s) in a sequence alignment - protein structure metadata can be updated with full chain sequences - missing-structure pseudobonds are labeled with the number of missing residues (default, can be turned off in preferences) For details, please see the ChimeraX change log: https://www.rbvi.ucsf.edu/trac/ChimeraX/wiki/ChangeLog On behalf of the team, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Resource for Biocomputing, Visualization, and Informatics Department of Pharmaceutical Chemistry University of California, San Francisco

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ChimeraX 1.8 release
by Elaine Meng 14 Jun '24

14 Jun '24

UCSF ChimeraX version 1.8 has been released! ChimeraX includes user documentation and is free for noncommercial use. Download for Windows, Linux, and MacOS from: https://www.rbvi.ucsf.edu/chimerax/download.html Updates since version 1.7 (Dec 2023) include: - show worm depictions of attribute values (B-factor, conservation, etc.) using Render by Attribute tool or "cartoon byattribute" command - show attribute values with atomic radii using Render by Attribute or "size byattribute" - Select by Attribute graphical interface - Join Models generalized to any covalent bond (not just peptide) - show multiple alternate locations simultaneously with "altlocs show" - "pbond" command to create arbitrary pseudobonds - "measure contactarea" to report the area of one surface within a cutoff distance of another - Segmentations tool for interactive manual segmentation in 2D slice views, 3D (desktop), or 3D (VR) can be applied to any volume data, not just medical images; several fixes and ergonomic improvements including icons to assign/deassign mouse and VR hand-controller modes with a single click - set up and analyze batch AlphaFold predictions to search for protein-protein interactions (commands for advanced users who can run ColabFold directly on Linux) support for: - reading predicted aligned error (PAE) data from AlphaFold 3 - reading docking results from MOE - fetching atomic structures and maps from PDB-REDO - fetching/display of PDB NMR-STAR restraints For details, please see the ChimeraX change log: https://www.rbvi.ucsf.edu/trac/ChimeraX/wiki/ChangeLog On behalf of the team, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Resource for Biocomputing, Visualization, and Informatics Department of Pharmaceutical Chemistry University of California, San Francisco

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ChimeraX 1.7 release!
by Elaine Meng 19 Dec '23

19 Dec '23

UCSF ChimeraX version 1.7 has been released! ChimeraX includes user documentation and is free for noncommercial use. Download for Windows, Linux, and MacOS from: https://www.rbvi.ucsf.edu/chimerax/download.html Updates since version 1.6 (May 2023) include: New graphical interfaces: - Fetch By ID - Map Filter - Adjust Torsions (new section in Build Structure) - Adjust Angles defined by three atoms (also in Build Structure) Open command options to: - specify model number - combine incoming session with existing session - designate map as difference map (show +/-contours automatically) - fetch by IUPAC name (also in Build Structure tool) - fetch EMDB map + fit structures Mouse mode updates: - new mouse mode to center the view on the clicked item - better separation of trackpad multitouch zoom and rotate - Z-translation by additionally pressing Ctrl in a translation mouse mode Other: - invert selection with left/right arrow keys - mcopy command to copy settings from one atomic structure to another - save GLTF options to cull backfaces, omit per-vertex colors, omit normals - volume defaultvalues command to set defaults for subsequently opened maps - info command saveFile option (list selection, attribute values, etc.) - opening docking results automatically starts ViewDockX - button to save Blast Protein results to TSV For details, please see the ChimeraX change log: https://www.rbvi.ucsf.edu/trac/ChimeraX/wiki/ChangeLog On behalf of the team, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco

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REMINDER: ChimeraX website downtime
by Elaine Meng 15 May '23

15 May '23

REMINDER: Due to a scheduled power outage at UCSF followed by server upgrades, the ChimeraX website and web services will be unavailable -- the estimated downtime is from Tuesday May 16 8pm PDT through Wednesday May 17 8pm PDT. Please pardon any inconvenience, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco

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ChimeraX 1.6.1 release
by Eric Pettersen 10 May '23

10 May '23

UCSF ChimeraX version 1.6.1 has been released! ChimeraX includes user documentation and is free for noncommercial use. Download for Windows, Linux, and MacOS from: https://www.rbvi.ucsf.edu/chimerax/download.html <https://www.rbvi.ucsf.edu/chimerax/download.html> Updates since version 1.5 (Nov 2022) include: - ESMFold protein structure prediction and residue-residue error plot - Add Charge GUI - Dock Prep GUI to repair side chains, add hydrogens, etc. - Render by Attribute GUI for coloring by atomic or residue values - swapna command to mutate nucleic acid residues - invert chiral center - read SwissDock docking results - Blast Protein query sequence can be pasted in or specified by UniProt ID - browse/fetch medical images from The Cancer Imaging Archive - read medical images in NIfTI (.nii) and NRRD (.nnrd) formats For details, please see the ChimeraX change log: https://www.rbvi.ucsf.edu/trac/ChimeraX/wiki/ChangeLog <https://www.rbvi.ucsf.edu/trac/ChimeraX/wiki/ChangeLog> For those of you who downloaded plain 1.6 while it was briefly available, please upgrade to 1.6.1. It has several bug fixes that 1.6 should have had but didn't. --Eric Eric Pettersen UCSF Computer Graphics Lab

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Web site downtime
by Eric Pettersen 04 May '23

04 May '23

Hi all, Due to a scheduled power outage at UCSF followed by server upgrades, the ChimeraX website and web services will be unavailable from Tuesday May 16 through most of Wednesday May 17. Please pardon any inconvenience, --Eric Eric Pettersen UCSF Computer Graphics Lab

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ChimeraX 1.5 release
by Elaine Meng 30 Nov '22

30 Nov '22

UCSF ChimeraX version 1.5 has been released! ChimeraX includes user documentation and is free for noncommercial use. Download for Windows, Linux, and MacOS from: https://www.rbvi.ucsf.edu/chimerax/ Updates since version 1.4 (Jun 2022) include: - AlphaFold search/fetch uses database v4 (fixes ~4% of v3 entries) - show AlphaFold residue-residue errors (PAE) with colored lines - Axes/Planes/Centroids tool to define objects, use in measurements - transform surface models (scale, shift, rotate) - add hydrogens GUI - calculate and assign charges, including for nonstandard residues - dock prep command - renumber residues, change chain IDs - crosseye and walleye stereo - cleaner close session (reverts more settings) - UniProt sequence fetch updated to work with UniProtKB's new API - DICOM browser shows patient-study-series hierarchy in medical image data For details, please see the ChimeraX change log: https://www.rbvi.ucsf.edu/trac/ChimeraX/wiki/ChangeLog

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ChimeraX 1.4
by Eric Pettersen 11 Jun '22

11 Jun '22

UCSF ChimeraX version 1.4 has been released! ChimeraX includes user documentation and is free for noncommercial use. Download for Windows, Linux, and MacOS from: https://www.rbvi.ucsf.edu/chimerax/ This will be the last release to support macOS 10.14 (Mojave). Also, ChimeraX 1.4 is not available for CentOS 7, Ubuntu 16.04 and 18.04 because the Qt 6 window toolkit does not support those older Linux distributions. Updates since version 1.3 (Dec 2021) include: - search/retrieve from EBI AlphaFold DB 3rd release, ~1 million structures - display AlphaFold predicted aligned error (PAE) plots - can BLAST UniRef100,90,50 (+ previous choices AlphaFold, PDB, NR) - AlphaFold prediction of multimers (of limited size) on Google Colab - independent centers of rotation available as mouse mode - join models with Build Structure tool or command - define axes for display and/or use in measurements - increase/decrease VDW radii relative to their current values - switch PDB residue numbering scheme (author/canonical/uniprot) - align sequences with Clustal Omega or MUSCLE - calculate % identity in sequence alignments - window toolkit updated to Qt 6.2.3 from 5.15.2 For details, please see the ChimeraX change log: https://www.rbvi.ucsf.edu/trac/ChimeraX/wiki/ChangeLog

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ChimeraX version 1.2 released!
by Elaine Meng 28 May '21

28 May '21

UCSF ChimeraX version 1.2 has been released! Major changes since v1.1 (Aug 2020) include: - Surface Color tool - Unit Cell tool - Color Key tool and command - Crystal Contacts tool and command - volume tools: Hide Dust, Color Zone, Surface Zone - Meeting panel for multiperson VR - "fly" command for smooth motion along multiple saved views - "rmsd" command for calculating RMSD in current positions (w/o fitting) - nucleic-acid building - bond deletion/addition - UniProt fetch includes sequence feature annotations (domains, mutations, modification sites, etc.) - support for Amber netCDF trajectories - smaller session files - faster saving of sessions with maps - mouse mode for moving a clicked model without having to select it For more details, see the ChimeraX change log: https://www.rbvi.ucsf.edu/trac/ChimeraX/wiki/ChangeLog Downloads: https://www.rbvi.ucsf.edu/chimerax/download.html

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