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Recent Citations
Building molecular model series from heterogeneous CryoEM structures using Gaussian mixture models and deep neural networks. Chen M. Commun Biol. 2025 May 25;8(1):798.
Oxidation of retromer complex controls mitochondrial translation. Zhang J, Ali MY et al. Nature. 2025 May 22;641(8064):1048–1058.
MagIC-Cryo-EM, structural determination on magnetic beads for scarce macromolecules in heterogeneous samples. Arimura Y, Konishi HA, Funabiki H. eLife. 2025 May 20;13:RP103486.
Structure and mechanism of the plastid/parasite ATP/ADP translocator. Lin H, Huang J et al. Nature. 2025 May 15;641(8063):797–804.
Sensing ceramides by CYSLTR2 and P2RY6 to aggravate atherosclerosis. Zhang S, Lin H et al. Nature. 2025 May 8;641(8062):476-485.
Previously featured citations...Chimera Search
Google™ SearchNews
March 6, 2025
Chimera production release 1.19 is now available, fixing the ability to fetch structures from the PDB (details...).
December 25, 2024
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October 14, 2024
Planned downtime: The Chimera and ChimeraX websites, web services (Blast Protein, Modeller, ...) and cgl.ucsf.edu e-mail will be unavailable starting Monday, Oct 14 10 AM PDT, continuing throughout the week and potentially the weekend (Oct 14-20).
Previous news...Upcoming Events
UCSF Chimera is a program for the interactive visualization and analysis of molecular structures and related data, including density maps, trajectories, and sequence alignments. It is available free of charge for noncommercial use. Commercial users, please see Chimera commercial licensing.
We encourage Chimera users to try ChimeraX for much better performance with large structures, as well as other major advantages and completely new features in addition to nearly all the capabilities of Chimera (details...).
Chimera is no longer under active development. Chimera development was supported by a grant from the National Institutes of Health (P41-GM103311) that ended in 2018.
Feature Highlight
Electron density maps can be read from local files or fetched from databases. Chimera's Volume Viewer allows adjusting contour levels interactively, showing multiple isosurfaces for a given map, and restricting display to a zone around selected atoms. The figure shows PDB entry 2fma and its electron density map. Settings are similar to those described in the Density Display tutorial. See also: Chimera volume display guide
(More features...)Gallery Sample
The image shows the structure of the human TRPA1 ion channel (wasabi receptor) determined by electron cryo-microscopy, Protein Data Bank entry 3j9p. The four subunits of the tetramer are shown as ribbons in different colors over a dark-to-light gradient background. (More samples...)
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