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Recent Citations
Sensing ceramides by CYSLTR2 and P2RY6 to aggravate atherosclerosis. Zhang S, Lin H et al. Nature. 2025 May 8;641(8062):476-485.
Structure of mitochondrial pyruvate carrier and its inhibition mechanism. He Z, Zhang J et al. Nature. 2025 May 1;641(8061):250–257.
Structures and mechanism of the human mitochondrial pyruvate carrier. Liang J, Shi J et al. Nature. 2025 May 1;641(8061):258-265.
Metabolic signaling of ceramides through the FPR2 receptor inhibits adipocyte thermogenesis. Lin H, Ma C et al. Science. 2025 May 1;388(6746):eado4188.
Chanoclavine synthase operates by an NADPH-independent superoxide mechanism. Chen CC, Yu ZP et al. Nature. 2025 Apr 17;640(8059):840-846.
Previously featured citations...Chimera Search
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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
Side-by-side views of a potassium channel structure (Protein Data Bank entry 1bl8) showing different approaches to cavity detection. On the left are molecular surface patches corresponding to the structure's two largest pockets by MS volume in the Computed Atlas of Surface Topography of proteins (CASTp) database. On the right is a tunnel in blue identified by the MolAxis server. Simple editing converted MolAxis output into a BILD file for display in Chimera. (More samples...)
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