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Recent Citations

Structural pharmacology and therapeutic potential of 5-methoxytryptamines. Warren AL, Lankri D et al. Nature. 2024 Jun 6;629(8015):237–246.

Observation of a promethium complex in solution. Driscoll DM, White FD et al. Nature. 2024 May 23;629(8013):819-823.

Stepwise activation of a metabotropic glutamate receptor. Krishna Kumar K, Wang H et al. Nature. 2024 May 23;629(8013):951–956.

Structural basis of lipid head group entry to the Kennedy pathway by FLVCR1. Son Y, Kenny TC et al. Nature. 2024 May 16;629(8012):710–716.

Structural and molecular basis of choline uptake into the brain by FLVCR2. Cater RJ, Mukherjee D et al. Nature. 2024 May 16;629(8012):704–709.

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June 17-18, 2024

Planned downtime: The Chimera and ChimeraX websites, web services (Blast Protein, Modeller, ...) and cgl.ucsf.edu e-mail will be unavailable June 17-18 PDT.

October 30-31, 2023

Planned downtime: The Chimera and ChimeraX websites and associated web services will be unavailable Oct 30 8am PDT – Oct 31 11:59pm PDT.

April 19, 2023

Chimera production release 1.17.1 is now available, fixing an issue with 1.17 for Windows and Linux. See the release notes for details.

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Upcoming Events

Please note that UCSF Chimera is legacy software that is no longer being developed or supported. Users are strongly encouraged to try UCSF ChimeraX, which is under active development.

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

Fly-through Animation

The fly command can animate a flight through molecular structures. Click the example image to fly along the RNA being copied by rotavirus RNA polymerase (PDB 2r7r), an enzyme that replicates the 11 segments of viral RNA. See a video showing how this animation was made.

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Gallery Sample

Peroxiredoxin Wreath

Peroxiredoxins are enzymes that help cells cope with stressors such as high levels of reactive oxygen species. The image shows a decameric peroxiredoxin from human red blood cells (Protein Data Bank entry 1qmv), styled as a holiday wreath.

See also the RBVI holiday card gallery.

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